EarthCore BVETTO 36 inch, BVETTO 46 inch, 80B36, 80B46 Installation, Operation, Maintenance And Owner's Manual
Isokern® BVETTOTM B-Vent
Gas Fireplaces and Chimney System
Installation, Operation, Maintenance and Owner’s Manual
Isokern BVETTO Models 80B36 & 80B46
A PRODUCT OF EARTHCORE® INDUSTRIES, LLC
IMPORTANT: This manual contains assembly rules, installation steps and guidelines, and use and maintenance instructions for Isokern B-VENT gas appliances (BVETTO). This manual must become the property of and be reviewed
by all current and future users of this product. It is the responsibility of the distributor, general contractor and the
installer of this product that the instructions in this manual are followed exactly and, further that the allowed gas log
appliance used in this product be installed in strict accordance with the gas log manufacturer’s listing and explicit
installation and operation instructions.
INSTALLER: Leave this manual with the appliance
CONSUMER: Retain this manual for future reference
Be Sure to Read Entire Manual Before Beginning Construction.
Contents of this manual may change without prior notification.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warning exactly could
result in serious injury, death, or property damage.
— Do not store or use gasoline or other
flammable vapors and liquids in the vicinity
of this or any other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Leave the building immediately.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call
the fire department.
— Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
Do not install the BVETTO B-Vent Gas Fireplace in a
manufactured home or mobile home or recreational
vehicle.
— This appliance complies with National Safety and
is tested and listed to ANSI Z21.50 - 2014 as
vented gas fireplaces.
— Installation must conform to local codes. Check
local codes prior to installation. In the absence of
local codes, installation must conform with
current National Fuel Gas Code, ANSI Z223.1.
PFS Report No. 09-79
SAP No. 506022-03
USA: ANSI Z21.50 - 2014
Canadian: CSA 2.22- 2014
Issued: August 2017
Revision: 005
©2017 Earthcore Industries, LLC
THESE FIREPLACES ARE DESIGNED for USE with:
PROPANE (LP) or NATURAL GAS (NG), ONLY
THIS MANUAL CAN ONLY BE REPRODUCED IN ITS ENTIRETY
Earthcore Industries
PFS
BVETTO B-Vent Gas Fireplace 08/2017
Table of Contents
General Information ............................................3
B-Vent Metal Chimney Installation .............. 21 - 22
Safety Instructions .......................................... 4 - 5
Firebrick Installation ............................................... 23
BVETTO B-Vent Series 36” Drawing.................6
Flush Wall Finish Detail .........................................24
Component List - BVETTO B-Vent Series 36” ..7
Clearance to Combustible Trim ............................25
BVETTO B-Vent Series 46” Drawing.................8
ISOKERN Gas Log Set -
Component List - BVETTO B-Vent Series 46” ..9
Required Clearance to Combustibles ................10
Calculating Flooring Loads .................................... 11
Rough Framing Dimensions .................................. 12
General Assembly Instructions .............................13
Assembly Instructions -
BVETTO B-Vent Series............................ 14 - 18
B-Vent Metal Chimney Installation -
General Information ........................................19
General Information.........................................26
Burner Parts List ...............................................27
Wiring Diagrams ..............................................28
Burner Installation ...................................... 29-31
Log Set Installation ...........................................32
Installing/Replacing Batteries .........................33
Lighting Instructions .................................. 34-35
Remote Operations ...........................................36
Cleaning & Servicing ........................................37
Troubleshooting ................................................ 38
ECODAMPER System ............................................ 39
Installation .........................................................40
Registration Card ....................................................43
B-Vent Metal Chimney Components ...................20
BVETTO Rating Label
ISOKERN BVETTO B-VENT GAS FIREPLACE: MODELS 80B36 AND 80B46
®
PFS REPORT NO. 09-79
SUITABLE FOR USE WITH PROPANE (LP) OR NATURAL GAS, SEE GAS IDENTIFYING TAG ON BURNER
IBV36 MODEL # 80B36 PROPANE (LP) BTU MIN: 22,000; BTU MAX: 50,000
IBV36 MODEL # 80B36 NATURAL GAS (NG) BTU MIN: 21,000; BTU MAX: 65,000
IBV46 MODEL # 80B46 PROPANE (LP) BTU MIN: 23,000; BTU MAX: 60,000
IBV46 MODEL # 80B46 NATURAL GAS (NG) BTU MIN: 22,000; BTU MAX: 75,000
MANIFOLD PRESSURE: PROPANE (LP): 10” WATER COLUMN; NATURAL GAS: 3.5” WATER COLUMN
MINIMUM PERMISSIBLE GAS SUPPLY PRESSURE FR PURPOSE OF INPUT ADJUSTMENT:
PROPANE (LP): 11” WATER COLUMN / NATURAL GAS: 5” WATER COLUMN
ELECTRICAL RATING:
UNIT: ELECTRONIC
1 PH
60 HZ
120 VOLTS
LESS THAN 5 AMPS
“CAUTION: THIS APPLIANCE IS ONLY FOR USE WITH THE TYPE OF GAS INDICATED ON THE RATING PLATE AND MAY BE INSTALLED IN THE
AFTER-MARKET, PERMANENTLY LOCATED, MANUFACTURED HOME (USA ONLY) OR MOBILE HOME, WHERE NOT PROHIBITED BY LOCAL CODES.
SEE OWNER’S MANUAL FOR DETAILS. THIS APPLIANCE IS NOT CONVERTIBLE FOR USE WITH OTHER GASES, UNLESS A CERTIFIED KIT IS USED.”
This appliance must be installed in accordance with local codes, if any, if none, follow the current ANSI Z223.0/NFPA 54 or CSA B149.1
LISTED VENTED GAS FIREPLACE PER USA ANSI Z21.50 - 2014
US
NOT FOR USE WITH SOLID FUEL
*See Burner Rating Plate For Additional Information
CLEARANCE TO COMBUSTIBLES:
UNIT FRONT AND SIDES = 0in
UNIT REAR = 1.5in. 60mm
COMBUSTIBLE SHEATHING ABOVE OPENING TOP = 8in. 205mm
SHEATHING OR TRIM TO OPENING SIDES = 8in. 205mm
MANTLE ABOVE OPENING = 12in. 305mm
INSULATION FROM FIREBOX = 3in. 75mm
Warranty ................................................................... 44
AND CANADIAN: CSA 2.26- 2014
EARTHCORE INDUSTRIES, INC.
JACKSONVILLE, FL 32256
IBV MODEL #
80B36 80B46
SERIAL NO:
2
Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
General Information
BVETTO Models 80B36 and 80B46 are tested and
listed by PFS Corp., USA Report No. 09-79 to ANSI
Z21.50 - 2014 and Canadian Standard CSA 2.22 - 2014.
The BVETTO models are top-vented, gas only fireplaces
that are listed for use only with the ISOKERN Gas Log
appliance listed in this installation manual. These gas
appliances come with a gas control valve that includes
an automatic shut-off switch. The gas valve is available in
a millivolt remote control pilot assembly.
The exhaust flue gases are to be vented through
the top of the unit with listed B-Vent piping. A ten inch
(10”) diameter, double wall B-Venting system and a listed
vent cap are not supplied but are required for proper
operation of all BVETTO Models, 36 and 46. See venting
instructions on pages 19-22.
WARNING: This gas appliance must not be connected
to a chimney flue servicing a solid fuel burning appliance.
Intended Use Statement
The BVETTO is intended to burn propane (LP) gas or
natural gas (NG), only. This appliance is not intended to
be used as a primary source of heat.
The BVETTO and its approved components are safe
when installed according to this installation manual and
when operated as recommended by the manufacturer.
Unless you use Earthcore Industries, LLC approved
components tested for this appliance, you may cause a
fire hazard or serious injury.
Before you begin the installation of this appliance,
read these instructions completely.
throughout this manual. Special attention must be given
to each topic as the installation progresses.
The installation of the BVETTO must conform with
local codes or, in the absence of local codes, with the
current National Fuel Gas Code, ANSI-Z223.1/NFPA 54
or the current Natural Gas and Propane Installation Code,
CSA B149.1.
Seismic Code Specifications
If installation of the Isokern Firebox is to be installed in
an area with Seismic Codes please follow these instructions. Four No. 4 ASTM A615 Grade 40 minimum, vertical
reinforcing bars, 2 on each side of the fine box running
from mid-height (where the tapered section of the box
begins) of the structure to approximately 4 inches into
the concrete slab (for anchorage).
Earthcore Industries, LLC disclaims any
responsibility for the following actions:
1. Modification of the appliance or any of its components.
2. Use of any component part not approved by Earthcore
Industries in combination with this appliance.
3. Installation or operation in a manner other than instructed in this manual.
4. Burning of anything (solid fuel) other than the listed
gas log unit and the type of gas approved for use in this
gas appliance.
The most important areas of concern with the
installation of the top venting BVETTO are clearance to
combustible materials, proper assembly of component
parts, load carrying capacity of underlying floor system,
height of chimney system, hearth extensions and the
techniques employed in applying finishing materials to
the wall surrounding the BVETTO.
Each of these topics will be covered in detail
Important: The top plate of the firebox is not meant to
be used as a structural support. Please consult structural
engineer for structural support of any veneer bearing
weight on the Isokern top plate.
Note: Do not scale drawings. Illustrations in this manual
are not to scale and are intended to show “typical”
installations.
Nominal dimensions are given for design and framing
reference only, since actual installations may vary due
to job specific design preferences. Always maintain the
stated minimum clearances to combustible materials.
Do not violate any specific installation requirements.
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Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
Safety Instructions
WARNING: This product contains or generates
chemicals known to the state of California to cause
cancer or birth defects or other reproductive harm.
IMPORTANT: Read this owner’s manual carefully and
completely before trying to assemble, operate or
service this fireplace. Improper use of this fireplace
can cause serious injury or death from fire, burns,
explosions and carbon monoxide poisoning.
DANGER: CARBON MONOXIDE POISONING MAY
LEAD TO DEATH!
This fireplace is a vented product and will not produce
any gas leakage into your home if properly installed by
a qualified service person. If this unit is not properly
installed by a qualified service person, gas leakage may
occur.
Propane (LP) gas and natural gas (NG) are both
colorless and odorless gases. An odor-making agent is
added to each of these gases to help you detect a gas
leak. However, the odor added to these gases can fade
and gas may be present even though no odor exists.
Carbon Monoxide Poisoning: Early signs of carbon
monoxide poisoning resemble flu symptoms, including
headaches, dizziness or nausea. If you have these signs
the fireplace may not have been installed properly, get
fresh air at once! Have the fireplace inspected and
serviced by a qualified service person or your gas supplier.
Some people are more affected by carbon monoxide
than others. These include pregnant women, people with
heart or lung diseases or anemia, people at high altitude
or under the influence of alcohol. Earthcore Industries
strongly recommends the use of a carbon monoxide
detector/alarm device wherever gas fired appliances are
in use.
All parties either involved in or associated with the
installation, service and use of this fireplace must read
this entire manual. Keep this manual for reference and as
a guide book to safe operation of this fireplace.
WARNING: This unit is not for use with solid fuel.
1. Always check local building codes governing fireplaces
and fireplace installations. The BVETTO B-Vent Series
installation must comply with all local, regional, state and
national codes and regulations.
2. The BVETTO B-Vent Series fireplaces are listed for use
with the decorative gas log appliance listed in this
manual only.
3. This appliance is only for use with the type of gas
indicated on the rating plate. This appliance can be field
converted for use with other gases with Propane (LP) or
Natural Gas (NG).
4. For propane (LP) use do not place propane supply
tank(s) inside any structure. Locate propane supply
tank(s) outdoors. To prevent performance problems, do
not use propane fuel tank of less than 100 lbs. capacity.
5. Do not install the BVETTO B-Vent Gas Fireplace in a
manufactured home or mobile home or recreational
vehicle.
6. This fireplace reaches high temperature. Keep children
and adults away from hot surfaces to avoid burns or
clothing ignition. Fireplace will remain hot for a time after
shutdown. Allow surfaces to cool before touching.
7. Turn the BVETTO B-Vent Fireplace off and allow to cool
before servicing. Always shut off any electricity and gas
to the BVETTO B-Vent Fireplace while working on it. Only
a qualified service person should install, service or repair
this fireplace. Have your fireplace inspected annually by a
qualified service person.
8. It is imperative that the unit’s control areas, burners
and circulation air passages be kept clean.
9. Venting system should be inspected annually by a
qualified service person. If needed have venting system
cleaned or repaired.
10. Keep all combustible material, gasoline and other
flammable liquids at a safe distance from the fireplace.
Do not use the fireplace where these items are used or
stored. Decorations, clothing and other such combustible
items should not be placed on the fireplace.
11. Do not use the BVETTO B-Vent Series Fireplace to
cook food or burn paper or other objects.
12. Do not use any solid fuels - wood, coal, paper,
cardboard, etc. - in this fireplace. Use only the gas type
listed on the fireplace’s gas log label.
14. Keep all insulation and vapor barriers a minimum
of three inches (3”) away from all BVETTO B-Vent and
chimney components.
15. This American Gas Association fact sheet provides an
overview of the requirements for the electrical bonding
of fuel gas piping systems to the electrical grounding
system based on ANSI Z223.1/NFPA 54, National Fuel
Gas Code - 2015 (NFGC). The bonding requirements in
previous code editions, in local jurisdictions or in specific
situations, may differ.
16. Do not pack or fill required air spaces with insulation
or other material. No material is allowed in these spaces.
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Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Safety Instructions
1 7. Never install a BVETTO B-Vent Series component,
chimney component or accessory that has visible or
suspected physical damage as a result of handling or
transportation. These items should be inspected by a
qualified representative to ensure safe condition. When
in doubt, consult your local supplier.
18. Do not alter or modify the BVETTO B-Vent Series,
venting components under any circumstances.
Modification or alteration of the venting components
may void manufacturer’s warranty, listings and approvals.
19. Do not use a fireplace blower insert, heat exchanger
or any other product not specified by the manufacturer
herein for use with this fireplace.
20. Do not use any BVETTO B-Vent Series appliance if any
part has been under water. Immediately call a qualified
service technician to inspect the appliance and to replace
any part of the control system and any gas control which
has been under water.
21. The BVETTO B-Vent Series is not intended to heat an
entire home or to be used as a heat source.
29. Do not nail or screw into the isokern fireplace,
which includes firebox or smoke dome components
unless attaching the anchor plate for the metal
flue system. This may alter the integrity of the
fireplace and cause a house fire. THIS WILL VOID THE
WARRANTY OF THE FIREPLACE.
30. Never spray or apply any type of sealer, insulation or
other materials to the fireplace.
22. Children and adults should be alerted to the hazards
of high surface temperature and should stay away from
this appliance to avoid burns or clothing ignition.
23. Young children should be carefully supervised when
they are in the same room as the appliance. Toddlers,
young children and others may be susceptible to accidental
contact burns. A physical barrier is recommended if there
are at-risk individuals in the house. To restrict access to
the fireplace, install a adjustable safety gate to keep
toddlers, young children and other at-risk individuals out
of the room and away from hot surfaces.
24. Clothing or flammable material should not be placed
on or near the appliance.
25. Due to high temperatures, the appliance should
be located out of traffic and away from furniture and
draperies.
28. Installation and repair should be done by a qualified
service person. The appliance should be inspected
before use and at least annually by a professional service
person. More frequent cleaning may be required due to
excessive lint from carpeting, bedding material, etcetera.
It is imperative that control compartments, burners, and
circulating air passageways of the appliance be kept
clean.
5
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
BVETTO B-Vent Series 36” (80B36)
10 ½”
22 ½”
27 ¼”
36
¹/8”
High Temp
Lintel
31 ½”
71 ¼”
71 ¼”
31 ½”
25 ¼”
Down Draft
Diverter
16”
36 ¾”
16”
34 ½”
43
Front View
Note: These are
inside rough
dimensions
before firebrick
Side View
Uses 10” Metal-Fab or
DuraVent Type B
Gas Vent Chimney.
27 ¼”
25 ¼”
14”
Flue Outlet
22 ½”
36
¹/8”
43”
Plan View Top View
5”
10 ¾”
25 ¼”
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Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Component List - BVETTO B-Vent Series 36” (80B36)
Component Part# Description
25¼”
10½”
4”
2¼”
42¾”
25¼”
25¼”
43”
3”
16”
16”
21 Isokern BVETTO
11 Isokern BVET TO
34 Isokern BVETTO
8”
20 Isokern BVETTO
Base Plate
Smoke Dome (QTY. 2)
Side Sloping (QTY. 4)
Sidewall (QTY. 6)*
Component Part# Description
10¾”
25¼”
36S Isokern BVETTO
22½”
4”
32½”
4¾”
12 Isokern BVETTO
16”
10 ½”
25
30"
*NOTE: One additional backwall and two additional sidewalls
can be added to obtain an opening of 42" tall before brick
is installed, as well as, Two additional backwalls and four
additional sidewalls can be added to obtain an opening of 52½"
tall before brick is installed. To obtain this height the additional
pieces will need to be ordered in addition to the 80B36
fireplace kit.
Top Plate
Smoke Dome (QTY. 2)
Isokern BVETTO
Backwall (QTY. 3)*
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Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
BVETTO B-Vent Series 46” (80B46)
10 ½”
33 ½”
37 ¼”
47
¹/8”
High Temp
Lintel
31 ½”
71 ¼”
71 ¼”
31 ½”
25 ¼”
Down Draft
Diverter
16”
36 ¾”
16”
34 ½”
53”
Front View
Note: These are
inside rough
dimensions
before firebrick
Side View
Uses 10” Metal-Fab or
DuraVent Type B
Gas Vent Chimney.
37 ¼”
25 ¼”
14”
Flue Outlet
33 ½”
47
¹/8”
53”
Plan View Top View
5”
10 ¾”
25 ¼”
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Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Component List - BVETTO B-Vent Series 46” (80B46)
Component Part# Description
25¼”
10½”
4”
2¼”
42¾”
25¼”
25¼”
53”
3”
16”
16”
23 Isokern BVETTO
11 Isokern BVETTO
34 Isokern BVETTO
8”
20 Isokern BVETTO
Base Plate
Smoke Dome (QTY. 2)
Side Sloping (QTY. 4)
Sidewall (QTY. 6)*
Component Part# Description
10¾”
25¼”
77 Isokern BVETTO
33½”
4”
52¾”
4¾”
13 Isokern BVETTO
16”
10 ½”
31 Isokern BVETTO
40"
*NOTE: One additional backwall and two additional sidewalls
can be added to obtain an opening of 42" tall before brick
is installed, as well as, Two additional backwalls and four
additional sidewalls can be added to obtain an opening of 52½"
tall before brick is installed. To obtain this height the additional
pieces will need to be ordered in addition to the 80B46
fireplace kit.
Top Plate
Smoke Dome (QTY. 2)
Backwall (QTY. 3)*
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Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
Required Clearance to Combustibles
The BVETTO fireplaces and chimney systems are
tested and listed for installation with “clearance to
combustibles” as follows:
Zero inch (0”) clearance to the combustible floor;
(Isokern Base Plate must be used)
Zero inch (0”) clearance at the Isokern firebox sides
and front and smoke dome sides and front.
One and one half inches (1-1/2”) clearance at the
Isokern firebox back wall and smoke dome back wall.
One inch (1”) minimum air space to combustibles at
all B-Vent double wall chimney components’ outer layer.
When installing on a combustible floor system
the front of the fireplace must be covered with a noncombustible hearth extension material set tight against
the fireplace front and extending at least twenty inches
(20”) out from the finished front of the fireplace and at
least twelve inches (12”) beyond the finished sides of the
fireplace opening.
IMPORTANT: “Combustibles” are defined as “normal
construction materials” and considered to be: wood
framing materials, particle board, mill board, plywood
paneling, plywood subflooring and wood flooring.
CAUTION: Maintain three inches (3”) clearance to
insulation and vapor barriers from all firebox, smoke
dome and B-Vent flue components’ outer layer.
EXCEPTION: If insulation is used in walls surrounding
the fireplace, insulation may be installed behind sheathing
of gypsum board, plywood, particle board or other rigid,
fire rated material on the side facing the Isokern. The
facing material cannot be within 1 1/2” to the fireplace
sidewalls.
NOTES:
1. The fireplaces must sit upon a support designed to bear
the total installed weight of the fireplace.
2. All BVETTO installations will result in the minimum
finished fire brick floor of the firebox being at least four
and one half inches (4-1/2”) above the combustible floor
system. Never place a BVETTO on a combustible floor
without the base plate.
FIGURE 1 FIGURE 2
10
0”
Min.
1 ½”
Min.
0”
Min.
COMBUSTIBLE
FRAMING
Earthcore Industries
(non-insulated)
(non-combustible)
08/2017 BVETTO B-Vent Gas Fireplace
Calculating Flooring Loads
Floor framing for BVETTO installation will need to
be designed and built to accept substantial dead loads
spread over a relative small floor area. (Figure 3)
The following weights and sizes can be used to
calculate loading. It is the contractor’s responsibility to
provide adequate floor system load capacity.
BVETTO Weights and Load Calculations
Total dead load amounts include (but are not
necessarily limited to) the following items and their
corresponding weight estimates as listed below:
1. Isokern unit model weights:
a. BVETTO-46: 1400 lb
b. BVETTO-36: 1200 lb
2. Approximate weight of log set: 100 lb.
3. Fire brick and Adhesive: 350 lbs. - 1800 lbs.
depending on brick size and pattern
4. Facing material: per general contractor
5. B-Vent metal flue: per manufacturer
Hearth Extension
The floor area for each model is as follows:
BVETTO-46 @ 53” x 25.25” = 9.30 sq. ft.
BVETTO-36 @ 43” x 25.25” = 7.54 sq. ft.
Earthcore is not responsible for structural floor
support details for this fireplace system. Unless
otherwise noted all floor framing drawings in this manual
are merely illustrations to indicate the presence of an
underlying floor system.
Consult your local structural engineer for proper floor
system design, sizing and specifications.
Combustible
Floor System
FIGURE 3
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Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
Rough Framing Dimensions
Typical Installation Framing Dimensions
BVETTO Width Height Depth
A B C
Model 36 44” 72”, 83", 93" 26 ¾”
Model 46 54” 72”, 83", 93" 26 ¾”
B
Framed
Opening
FIGURE 4
C
A
Framed
Opening
Notes:
1. “B” includes the 3” thick base plate.
2. “Raised hearth” requires additional rough opening
height at “B” equal to the height of the raised hearth
detail.
3. Rough framing dimension for width “A” allows for the
1/2" for each side to build fireplace in the space. There is
0" required clearance at the sides of the Fireplace.
4. Rough framing dimension for depth “C” allows for the
required 1-1/2” clearance at the back of the Fireplace.
5. Opening height of 83” requires minimum 9’ flue; 93”
height requires minimum 12’ flue.
Corner Installation Framing Dimensions
BVETTO A B C D
FIGURE 5
Model 36 44" 49" 32" 70"
Model 46 54" 59" 39" 77"
Note: The following chart of plan dimensions is intended
to aid in the positioning of an BVETTO in a corner
condition.
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Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
General Assembly Instructions
When beginning the assembly process, mix the
Earthcore Adhesive with clean water to a smooth,
workable texture (without lumps or dry pockets) of a
“toothpaste” consistency. This mixture is suitable for
application onto Isokern components by using a masonry
grout bag supplied with the unit.
Attention should be paid that the Adhesive mixture is
not too thin or runny, as this will not allow the Adhesive to
reach its maximum bonding strength.
Mark out the position of the base plate on the
supporting floor system. Apply a thin layer of Earthcore
Adhesive to the area and set base plate in the Adhesive.
(Figure 6)
Earthcore Adhesive is then squeezed from a grout bag
onto the contact surfaces of the Isokern components as
they are fitted together.
NOTE: It is important that a 1/2” bead of Adhesive is piped
onto all the components’ contact surfaces, about 1/2” in
from all edges. (Figure 7)
When setting the next component onto the Adhered
contact surface of the base plate, some Adhesive should
squeeze out along the face of the entire joint as a sign of
complete and proper sealing of the joint.
On broader contact surfaces it is advisable to apply
several additional 1/2” beads of the Earthcore Adhesive to
the area to assure proper sealing of the joint.
Properly Adhered firebox and smoke dome assembly
requires approximately 100 pounds (dry measure) of
Earthcore Adhesive.
Earthcore
Adhesive
Earthcore
Adhesive
Earthcore
Adhesive
FIGURE 6
Leveling and Aligning Components:
Be sure to assemble all Isokern components level
and flush with adjoining components.
Earthcore Adhesive is not intended to create a
Adhesive joint of any thickness for leveling purposes.
Therefore, leveling and alignment adjustments are
made by the use of small plastic shims supplied with
the unit. (Figure 8)
The shims can be inserted under a component to
level and align it with adjacent Isokern components. Be
sure to re-grout any and all gaps resulting from shim
insertion to maintain components to full bearing.
Broken Components:
Components can be repaired by using Earthcore
Adhesive along the break line as the component is set
into place. Components broken into multiple small pieces
should be discarded and replaced.
IMPORTANT:
1. Do not mix Earthcore Adhesive with anti-freeze agents.
2. The maximum recommended Adhesive joint thickness
at Isokern components is 1/4”.
FIGURE 7
FIGURE 8
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Earthcore Industries
concrete installs
BVETTO B-Vent Gas Fireplace 08/2017
Assembly Instructions - BVETTO B-Vent Series
The following assembly instructions identify the
parts by name, part number and the placement of each
part in the assembly process.
Earthcore
Adhesive
FIGURE 9
FIGURE 10
Foundations Only
Base Plate:
36": Part 21
46": Part 23
Flush Hearth
on Concrete
NOTE: At all component placement, be sure to Adhesive
all contact surfaces with Earthcore Adhesive. Check for
complete sealing of each contact joint while assembly
progresses.
1. Set the base plates in a full bed of Earthcore Adhesive
on a level support surface. See page 11 for supporting
floor system. (Figure 9). Do not set the base plate so
that it is in span.
Flush Hearth:
If the design preference is for a “flush hearth” the base
plate can be omitted from the assembly and the firebox
walls built directly on a minimum 4" concrete support
slab. The fire brick floor of the firebox is then set directly
to the concrete support slab. This makes the fireplace
finished fire brick floor approximately one and one-half
inches (1-1/2”) above the top of the concrete support
slab. The noncombustible hearth material will butt tight
up against the fire brick floor. (Figure 10)
Raised Hearth:
If the design preference is for a raised hearth (floor
of the fireplace elevated above the room’s floor), then
the base plate can be set on a noncombustible platform
that is built up to the desired raised hearth height on the
concrete support slab. (Figure 11)
When calculating raised hearth height be sure to
allow for the three inch (3”) thick base plate plus the one
and one half inch (1-1/2”) thick fire brick floor in addition
to the height of the platform.
For all “raised hearth” construction where concrete
blocks are used to create the raised platform, it is
necessary to use the base plate. Be sure to Adhesive
the concrete block platform together. CMU used for base
plate support should be rated ASTM 90.
Whether a flush hearth or a raised hearth is installed,
the combustible floor in front of the fireplace must be
covered with a noncombustible hearth extension set
tight against the fireplace front and extending at least
20 inches out from the finished fireplace and at least 12
inches beyond the finished sides of the fireplace opening.
FIGURE 11
Raised hearth
for wood or
WARNING: “Flush hearth” installations are possible
only where the BVETTO support is a concrete slab
without any wood underpinning as the base plate
is omitted. Never place a BVETTO on a combustible
floor without the base plate.
14
Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Assembly Instructions - BVETTO B-Vent Series
2. Set the first course of the firebox side walls and back
walls into place. (Figure 12-13)
NOTE: It may be convenient to dry set the first course of
side walls and back walls into place on the Isokern base
plate and then trace their position on the base plate with
a pencil.
After outlining the dry set pieces, remove them and
apply Earthcore Adhesive to the areas traced on the base
plate where the side walls and back wall are to sit. By
doing this, the first layer of wall components can be set
directly into Adhesive already applied to the proper areas
on the base plate.
3. It is required that the two supplied high temperature
wires be routed from the inside of the BVETTO as follows:
Once the lowest, left hand side wall firebox
component is set in place (left, when facing the fireplace)
drill a 1/4” - 3/8” dia. hole in the inner face of this side
wall located four to six inches (4” - 6”) out from the back
wall of the BVETTO and at three to four inches (3” - 4”)
above the BVETTO base plate. (Figure 14)
This drill hole must intersect the hollow core of the
BVETTO firebox side wall.
Feed the two lengths of high temperature wire from
the inside of the BVETTO firebox through the drilled hole
and into hollow space of the firebox side wall. Bring the
two lengths of wire up and out through the top of the
side wall component (Figure 14).
NOTE: For Seismic Installation - With the Seismic
installation the opening in the sidewalls are used to
anchor the Isokern Fireplace to the floor with rebarb and
backfilled with concrete. The high tempertaure wires
will need to be run outside of the Isokern unit and not
through the openings in the sidewall.
The wires will be run through the bottom course of
the sidewall and out to the side of the Isokern Fireplace.
Another 1/4" hole should be drilled in the first course of
side sloping to attach to the high temperature wires to
the high temp lintel for the High Temperature switch.
Earthcore
Adhesive
Part #20
FIGURE 12
Earthcore
Adhesive
Backwall:
36": Part 25
46": Part 31
Part #20
Part #20
FIGURE 13
FIGURE 14
15
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
Assembly Instructions - BVETTO B-Vent Series
Part #20
FIGURE 15
Backwall:
36": Part 25
46": Part 31
Part #20
3. Continue assembly of the consecutive courses of the
firebox side wall and back wall. Apply Adhesive to the top
of each layer of wall components, set the next course
above into place. Be sure to Adhesive all vertical joints of
the side wall to back wall connection when setting each
component to its mate. (Figure 15)
Look for some Adhesive to squeeze out along the
joints of all contact surfaces as a sign that the joint is
thoroughly sealed with the approved Adhesive.
4. When all of the firebox sidewall and backwall
components are set, check the top surface of the firebox
for level. If necessary, adjust the top surface of the box
assembly for level by inserting a shim supplied with the
unit between the lowest wall component and the top
surface of the base plate.
Any gap created under the wall components during
the Shim leveling process must be filled with Earthcore
Adhesive to fill bearing against the base plate.
5. Begin the smoke dome assembly by setting the rear
bottom smoke dome component on top of the firebox
back wall assembly in a bed of Earthcore Adhesive. The
smoke dome component should sit flush with the back
side of the firebox assembly. (Figure 16)
Then set the front bottom smoke dome component
across the firebox opening so that the smoke dome piece
spans the firebox opening and is flush with the front of
the firebox.
Smoke Dome:
36": Part #11
46": Part #13
FIGURE 16
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Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Assembly Instructions - BVETTO B-Vent Series
6. Position the smoke dome’s sloping sidewalls at each
end of the bottom smoke dome components.
The sloping sidewalls fit in between the front and
rear smoke dome components and also fit into the
haunches at the ends of the front and rear smoke dome
components.
The smoke dome sloping sidewalls have a beveled
bottom edge so that they will sit tight onto the flat top of
the firebox side walls.
7. Set the upper course of front and rear smoke dome
components directly on top of and aligned with the
bottom front and bottom rear smoke dome components
that are already in place.
Set the two upper smoke dome sloping sidewalls
into position, one at each end of the upper front and rear
smoke dome components. (Figure 17)
8. Set the top plate into position and adhere on top of the
smoke dome wall assembly.
One side of the top plate shows a thickened center.
This side is the bottom face.
The flue hole in the top plate is centered in the
smoke dome from side to side but is offset from front to
back, the center being ten and three-fourths inches (10
¾”) from the back of the firebox. (Figure17)
Top Plate:
36": Part #36
46": Part #77
Side Sloping:
36": Part #34
46": Part #34
FIGURE 17
17
Earthcore Industries
High Temperature
Limit Switch
2 High Temperature
Wires
Tab to be bent upward
to stand vertical
(both sides)
Metal Canopy
BVETTO B-Vent Gas Fireplace 08/2017
Assembly Instructions - BVETTO B-Vent Series
9. The high temp lintel, as supplied, is forty five inches (45”)
long and fits the BVETTO models 36 & 46. Field cut the high
temp lintel equally at the perforated lines as required for the
36” unit. This will ensure the limit switch and micro-switch
are located in the proper position on the lintel.
Connect the two (2) leads from the high temperature
wires to the thermocouple junction block (see diagram,
page 29).
Measure and locate the centerline of the fireplace opening. Align notch at the front of the lintel to the centerline of
the fireplace. Install lintel using 1 1/2” masonry screws.
Alternate wire location
FIGURE 18
Metal Canopy
FIGURE 19
FIGURE 20
Smoke Dome
Component
Metal Canopy
High Temperature
Limit Switch
Limit Switch
Terminals
Front
Facing
NOTE: The limit switch and microswitch are already supplied and mounted in the BVETTO high temp lintel component. Connect the two high temperature wires (coming out
the top of the BVETTO left hand firebox side wall) to the two
high temperature wires that are attached to the limit switch
with ceramic wire nuts.
The small tab near damper lever should be bent upward
to stand vertical. This protects wires passing through the
harness.
WARNING: Do not bypass the high temperature limit
switch. Install downdraft diverter at the top plate. (Figure
20)
Orient assembly such that the wire cable is toward the
front of the fireplace opening.
Loosen screws on the cable clamp and loop between
the two washers at the end of the handle asembly.
NOTE: Wire clamp should be approximately 4” from the
washers. Tighten lock nuts on the handle if necessary. Pull
cable to close the damper and adjust the length of wire
cable by swinging the handle between open and close positions. When in the open position, the damper should be
rotated a full 90 degrees from the closed position. Retighten
screws on the cable clamp and remove excess cable.
The high temp lintel fits horizontally up toward the bottom of the smoke dome. The adjoining short leg of the high
temp lintel fits up against the bottom of the smoke dome
component. (Figure 19)
The high temp lintel has 4 pilot holes for the screw
placement. Attach the high temp lintel flush against the
front face of the smoke dome with 4 mounting screws driven into the face of the BVETTO smoke dome.
Any excess wire draped between the high temp lintel
and the left hand firebox sidewall should be neatly tucked
into the hollow core of the left hand sidewall. Excess wire
should not be visible below the canopy bottom.
NOTE: The 2 high temperature wires inside of the BVETTO
firebox will connect to the appropriate contacts found on
the gas log assembly during the installation of the gas log
set.
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Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
B-Vent Metal Chimney Installation - General Information
The BVETTO Series Fireplaces are tested and listed
for use with the specified factory-built metal B-Vent
Chimney Systems. The design and installation require
that the system use the Metal-Fab Type B Gas Vent or
the DuraVent Type B Gas Vent Chimney Systems.
APPROVED MANUFACTURERS
Metal-Fab®(UL 441 & ULC S605) Type B Gas Vent
DuraVent®(UL 441 & ULC S605) Type B Gas Vent
NOTE: The selected, approved chimney manufacturer
must provide the masonry anchor plate with down draft
diverter designed to fit their flue system. (Figure 21)
All chimneys and chimney liners must be installed
in accordance with the manufacturer’s installation
instructions and under the terms of their listing for use
with open faced fireplaces.
Refer to metal flue manufacturer for number
of offsets, approved chimney shrouds, clearance to
combustibles and any information specific to that flue
system. Only tested and listed chimney terminations
can be used on metal flue chimney systems. B-Vent
Chimney is not designed for use on products that operate
at continuous temperatures in excess of 1000°F.
IMPORTANT: Never fill any required clearance space with
insulation or any other building materials surrounding the
chimney.
Exterior metal parts, with exception of the top
portion of the chimney cap, can be painted with a high
temperature rust proof paint. Wash the metal surface
with a vinegar and water solution to remove any residue
before painting. Painting the chimney will help to increase
chimney life.
Interior chimneys shall be enclosed where they
extend through closets, storage areas, occupied spaces,
or anywhere the surface of the chimney could be
contacted by persons or combustible materials. The air
space between the outer wall of the chimney and the
enclosure shall not be less than 1 inches.
Except for installation in one or two family dwellings,
a factory built chimney that extends through any zone
above that on which the connected appliance is located is
to be provided with an enclosure having a fire resistance
rating equal to or greater than that of the floor or roof
assemblies through which it passes.
In cold climates, chimneys mounted on an outside
wall should be enclosed in a chase. Exterior chases
reduce condensation and enhance draft.
Proper planning for your B-Vent Chimney installation
will result in greater safety, efficiency and convenience.
You must use only B-Vent Chimney parts and components
to maintain a listed chimney system. Do not mix parts
or try to match with other products or use improvised
solutions.
Install your Isokern fireplace as described in this
installation manual and maintain all required clearances.
Connect only one fireplace per chimney. Follow the
fireplace safety manual for maximum efficiency and
safety. Do not over fire. Any damage to the fireplace or
chimney can possibly void the warranty.
Do not burn wood, driftwood, plastic, or chemically
treated wood such as railroad ties. They are corrosive to
your chimney system. THIS IS A GAS ONLY FIREPLACE.
A major cause of chimney related fires is
failure to maintain required clearance (air
spaces) to combustible material*. Minimum
clearance for 10” diameter air-cooled ecosteel chimney is one (1) inches. It is of utmost
importance that this chimney is installed
only in accordance with these instructions.
19
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
Metal-Fab B-Vent Components DuraVent B-Vent Components
Component Part# Description
10M12 B-Vent 12" Length
10M18 B-Vent 18" Length
10M24 B-Vent 24" Length
10M3 B-Vent 3' Length
10M4 B-Vent 4' Length
10M5 B-Vent 5' Length
10M12A B-Vent 12" Adjustable Length
10M18A B-Vent 18" Adjustable Length
10M45 45 Deg Adjustable Elbow
Component Part# Description
10GV18 B-Vent 18" Length
10GV36 B-Vent 3' Length
10GV12A B-Vent 12" Adjustable Length
10GVL45 45 Deg Adjustable Elbow
10MDD1 B-Vent Draft Diverter
10MGR B-Vent Guy Ring
10MF B-Vent Standard Flashing
10MFS B-Vent Firestop
10MSC B-Vent Storm Collar
10MFT B-Vent Flat Tall Cone Flashing
10MDD1 B-Vent Draft Diverter
10GVRS B-Vent Firestop Support
10GVF B-Vent Adjustable Flashing
10GVFS B-Vent Firestop
10GVSC B-Vent Storm Collar
10GVFF B-Vent Flat Tall Cone Flashing
10MC B-Vent Vent Cap/Termination
10GVVT B-Vent Vent Cap/Termination
20
Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
B-Vent Metal Chimney Installation
1. Mount Anchor Plate with down draft diverter: Chimneys
for Isokern BVETTO fireplaces begin with an Anchor Plate
with down draft diverter.
It is important that the surface of the Isokern chimney
has a level surface on which to attach the Anchor Plate. If
the top of the Isokern does not have a level surface, then
it will need to be modified accordingly.
Center the Inswool blanket over Isokern Top Plate
hole and trace outline of hole with a pen or marker. Cut
a hole in the blanket to match the hole in the Isokern
top plate. Center the Inswool blanket over the Isokern
Top Plate flue opening, then center anchor plate over the
Inswool blanket. Make sure nothing interferes with the
damper plate movement.
Secure the Anchor Plate with four (4) masonry
anchors. (Figure 21) If the Anchor Plate with Damper
is installed the damper should swing freely. When the
chain is pulled down, the damper should close (horizontal
position). When the chain is released (no weight on the
chain), the damper should swing open (vertical position).
To install the lintel hook, place the damper plate in
the closed (horizontal) position. Determine and mark
the position of the lintel hook. The lintel hook should be
mounted in a position so as to provide a small amount of
tension in the spring attached to the chain.
The tension is needed to prevent the damper plate
from rattling when closed. Mount the lintel hook to
masonry with the screws provided. Do not obstruct oval
openings in the anchor plate.
IBV Anchor Plate
ISOWOOL
Ceramic
Fiber Blanket
IBV Firebox
WARNING: Do not locate Anchor Plate with Down Draft
Diverter in a location inaccessible for inspection, cleaning
and servicing after installation.
2. Starting at the anchor plate, attach the first section of
B-Vent Pipe. It is acceptable to use screws to attach the
B-Vent to the anchor plate.
The B-Vent sections and components use the MetalFab positive twist lock for interconnections. Align the
ends of the vent, push together then twist section to
lock in place.
(Figure 22)
No additional fasteners are required to assure a safe
installation. It is acceptable to apply screws at the joints
if local code requires, or at the installing contractor’s
option, provided that the screws do not penetrate the
flue.
NOTE: When installing B-Vent always align “Up” arrow
away from appliance. Chimneys must be installed so that
access is provided for inspection and cleaning.
LINE UP PIPE ENDS
AND PUSH TOGETHER.
TO UNLOCK, SIMPLY BEND
OUT THE TAB AND UNTWIST
SURELOCK™
TAB
TWIST TO ENGAGE TWIST
LOCK AND DEPRESS
SURELOCK™ TAB TO
SECURE PIPE SECTIONS
PATENT NO. 6811190
PULL PIPE APART
FIGURE 21
FIGURE 22
21
21
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
B-Vent Metal Chimney Installation
3. If the B-Vent must penetrate the ceiling between floors,
cut a hole in the ceiling 2 inches larger than the outside
diameter (OD) of the outer casing. The B-Vent is to be
centered in this opening. When installed, check to make
sure the one inch (25.4 mm) clearance to combustible
has been maintained.
MC CAP
STORM COLLAR
MF FLASHING
MAINTAIN 1” (25.4 mm)
CLEARANCE TO
COMBUSTIBLE THRU
JOIST AREA
ARROWS ALWAYS
POINT AWAY FROM
APPLIANCE FOR
EACH SECTION
FIGURE 23
UP
ROOFING TO
OVERLAP
FLASHING
BASE ON
HIGH SIDE
WALL BAND - REQUIRED
FOR EVERY 30 FT.
OF VENT HEIGHT
FIRESTOP
NOTE: The B-Vent type chimney system must be
enclosed within a chase when installed in or passing
through a living area where combustibles or people may
come in contact with it. This is important to prevent
possible personal injury or fire hazard.
4. Continue with B-Vent penetrating the roof.
NOTE: For Canadian installations, use labeled ULC
section, designated with Suffix G, on vent sections
exposed to atmosphere.
At the roof, the opening should be 2 inches (51 mm)
greater than the B-Vent OD. Above the roof, a flashing is
required to maintain the one inch (25.4 mm) clearance to
the combustibles of the roof. Installation of a storm collar
allows water to drain over the flashing.
5. Install the B-Vent cap (MC) onto the B-Vent.
NOTE: See height of vents under “SAFETY”.
A B-Vent Cap should be used on all installations
to prevent back drafts and to keep out rain and debris.
The vent must extend through a flashing, and should
terminate with the lowest discharge opening no closer
to the roof than the minimum height shown in the table
below. These minimum heights may be used provided
the vent is not less than 8’ from any vertical wall. For
installations not covered in table below, the lowest
discharge opening of the vent cap should be at least 2’
above the highest point where it passes through the roof.
All gas vents extending above the roof more than 5 feet
must be securely guyed or braced.
Roof Pitch Minimum Height
Flat to 7/12 (305 mm) 1.0 ft
Over 7/12 to 8/12 (451 mm) 1.5 ft
Over 8/12 to 9/12 (610 mm) 2.0 ft
Over 9/12 to 10/12 (762 mm) 2.5 ft
Over 10/12 to 11/12 (991 mm) 3.25 ft
Over 11/12 to 12/12 (1218 mm) 4.0 ft
Over 12/12 to 14/12 (1524 mm) 5.0 ft
Over 14/12 to 16/12 (1829 mm) 6.0 ft
Over 16/12 to 18/12 (2134 mm) 7.0 ft
Over 18/12 to 20/12 (2286 mm) 7.5 ft
Over 20/12 to 21/12 (2438 mm) 8.0 ft
22
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Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Firebrick Installation
The manufacturer requires that the fireplace fireboxes be
lined with a minimum one and one-eighth (1-1/8”) thick
firebrick for the Floor, Backwall and Sidewalls. Thicker
firebrick may be used as an option. The pattern for the
firebrick lining is an owner option. The ISOSET mortar by
Earthcore is to be used when lining the Isokern Fireplace.
The ISOSET Firebrick Mortar Application:
• Add .75 quarts of water per 10lbs of dry product until
completely blended.
• Only mix what can be utilized within 15 minutes
• Do not retemper (the addition of water after the
chemical reaction has begun).
• The use of warm water will accelerate setup
• Joint thickness should be thin (1/16”-1/8”)
• Complete set time is between 48 & 72 hours.
• For best results, please allow seven days before heat
is applied.
• Approximately 35 to 40 lbs of prepared mortar will
lay up one hundred 9x4½x2½” Straights.
• DO NOT add additives such as fireclay, sand,
cement, or other accelerators.
These instructions may vary because of different
climates and conditions. The use of good masonry
practices for your area should also be considered.
Installation Instructions:
1. Wet mop the inside of the fireplace with a damp sponge
to remove dust and loose particles from the interior before
firebricking.
covers the 1/2” expansion gaps where both the floor
firebrick and the back wall firebrick were held off the units
side walls. (Figure 26)
All required through-wall accesses (gas and air intake
supply access holes) should be drilled before the required
firebrick lining is installed. Do not cover these areas with
firebrick.
Earthcore makes no claims as to the performance
of firebrick or firebrick mortar(s). It is typical for heat
stress cracks to appear in the firebrick in fireplaces.
Expansion
1/2” Gap
FIGURE 24
For Best Results:
1. After wet sponged interior of firebox apply a 1/4
notch bed joint on rear sides and floor.
2. Dip each firebrick in a pale of water before applying
mortar to one side for adherence to firebox.
2. Face joint dimensions of 1/8” to 3/8” in the brick work
is recommended and has the best appearance. Other face
joint dimensions are acceptable however smaller joints
may not leave room for heat expansion of firebrick.
3. Start the firebrick at the front edge of the floor of the
Isokern firebox, proceeding inward toward the back. Let
the floor brick gap approximately 1/2” off the back wall
and side walls. This air space allows heat expansion of the
firebrick and is to be left empty of mortar. (Figure 24)
4. Next, apply firebrick to the back wall of the unit. The back
wall firebrick covers the 1/2” expansion gap left at the brick
floor along the back wall of the firebox. (Figure 25)
5. Set the side wall firebrick by starting at the front edge
of the unit’s side wall and working inward toward the back
wall firebrick. The side wall firebrick, when completed,
Expansion
1/2” Gap
Fire Brick Floor
(Built First)
FIGURE 25
No Gaps
Fire Brick Floor
and Back Wall
(Built First)
FIGURE 26
23
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
Flush Wall Finish Detail
BVETTO units are designed to be installed so that the
rough front face of the Isokern firebox and smoke dome sit
flush to the room face of the rough framing members that
create the room wall finish.
IMPORTANT: Do not build a combustible frame wall in
front of the BVETTO firebox / smoke dome assembly.
(Figure 25)
Wall Framing for the room wall where the BVETTO is
set must not be placed across the front face of the BVETTO
firebox and smoke dome assembly.
Clearance to Drywall:
Drywall can be placed directly in contact with the front
of the BVETTO smoke dome. (Figure 24) With the Isokern
firebox/smoke dome set flush with the interior face of wall
framing, drywall can be hung on the framing members and
pass across the face of the BVETTO smoke dome and in
contact with it.
The drywall must be cut back a minimum of eight
inches (8”) from the sides of the firebox opening and
eight inches (8”) back from the top of the BVETTO firebox
opening, leaving BVETTO material exposed around the
face of the BVETTO firebox opening. These drywall cut
back areas will be filled with grout in conjunction with the
installation of the required fire brick lining requirements.
Combustible wood sheathing such as plywood
and particle board may be used to cover the front of the
Isokern smoke dome and be in direct contact with it.
Application of such combustible sheathings must assure
that the sheathing is held a minimum of eight inches (8”)
away from each side of the finished fireplace opening and
a minimum of eight inches (8”) inches above the top of the
finished fireplace opening. (Figure 26 & 27)
If combustible wood sheathing is installed across the
face of the Isokern smoke dome front be sure that when
the required noncombustible finished facing materials
are applied directly to the front of the BVETTO, that no
gaps or voids are left behind the finished facing materials.
Completely seal the required noncombustible finished
facing materials directly to the Isokern unit with Earthcore
Adhesive or other non-combustible grout.
FIGURE 27
FIGURE 28
IMPORTANT: Since there is no fire brick set along the
top of the BVETTO firebox opening, when setting the
noncombustible facing material onto the drywall across
the top of the firebox opening there will be a gap between
the back of the noncombustible finish material and the
rough front face of the Isokern Smoke Dome. (Figure 29)
Be sure to fill this gap with Earthcore Adhesive
in conjunction with placement of the code required
noncombustible finish facing material that is set across
the top of the firebox opening. WARNING: Avoid false
chimneys.
IMPORTANT: Failure to seal any gaps between the front
face of the BVETTO and the back of the noncombustible
finished facing material will create what is known as
a “false chimney” or “secondary chimney”. A “false
chimney”, in this case is the narrow gap (mentioned above)
between the back of the noncombustible facing material
at the top of the firebox opening and the rough front of
the BVETTO smoke dome. If left unfilled this gap creates a
“false chimney” which can cause a fire hazard by drawing
considerable heat out of the firebox and into the space
behind the noncombustible finish facing and from there up
into the wall cavity behind the drywall or other sheathing
material that houses the Isokern fireplace.
24
Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Clearance to Combustible Trim
Mantle and Mantle Shelf Clearances:
All combustible trim projecting less than one and
one-half inch (1 1/2”) must be kept eight inches (8”) from
the sides of the fireplace opening. All combustible trim
projecting more than one and one-half inch (1 1/2”) must
be kept twelve inches (12”) from the fireplace opening.
(Figure 35)
Parts of the combustible mantle assembly located
along the sides of the fireplace opening, which project
more than one and one half inches (1-1/2”) from the face of
the fireplace, shall have additional clearance equal to that
of the projection.
Parts of the combustible mantle assembly located
above and projecting more than one and one half inches
(1-1/2”) from the fireplace opening shall not be placed
less than twelve inches (12”) from the top of the fireplace
opening. (Figure 36)
Adjoining Walls:
Side walls and walls to rooms adjoining the Isokern
fireplace installation cannot be closer than twenty four
inches (24”) to the finished fireplace opening. (Figure 35)
42”
minimum clearance
from opening
to ceiling
Ceiling
Ceilings:
The minimum clearance from the top of the fireplace
opening to a ceiling is forty-two inches (42”). (Figure 34)
NOTE: “Clearance to Combustible Trim” are those
distances required to ensure that a fireplace mantle or
facing will not catch fire. In most cases the distances
should also be adequate to prevent any discoloration or
warping due to heat. However each installation presents
a unique and completely different set of circumstances
involving many variables.
These include paint or finish composition, previous
exposure to heat, methods and quality of construction,
air flow patterns, etc. Because of these variables, the
manufacturer does not guarantee that heat warping or
discoloration will never occur.
Combustible
Floor System
(non-flammable)
Adjoining Room Wall
4“ 8“
(non-combustible)
24”
Extension
1‘ 0”
Hearth
FIGURE 29
12”
20”
FIGURE 30
Hearth Extension
(non-combustible)
Combustible
Floor System
(non-flammable)
FIGURE 31
25
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
ISOKERN Gas Log Set - General Information
The BVETTO burner system is to be installed only in
an ISOKERN B-vent (BVETTO) fireplace with a working
flue and constructed of noncombustible material. The
installation, including provisions for combustion and
ventilation air must conform with all guidelines found in
the instructions supplied with the BVETTO fireplace.
The chimney damper MUST be fully opened when
burning the unit. The unit is designed to burn with yellow
flames; thus adequate ventilation is absolutely necessary.
To comply with certification, listings, and building
code acceptances, and for safe operation and proper
performance of this burner system, use ONLY BVETTO
parts and accessories. Use of other controls, parts, and
accessories that are not designed for use with BVETTO
burner systems is prohibited and will void all warranties,
certifi cations, listings, and building code approvals, and
may cause property damage, personal injury, or loss of
life. Earthcore will not be liable for any damages caused
by this misuse.
IMPORTANT: Solid-fuels shall not be burned in a fireplace
where a decorative appliance is installed.
BE CAREFUL: If not installed, serviced, and used
correctly per these instructions, this product can cause
serious personal injury, property damage, or loss of life.
This appliance is only for use with the type of gas
indicated on the rating plate. This appliance is NOT FIELD
CONVERTIBLE for use with other gasses.
CHECK GAS TYPE (natural or L.P.): The gas supply
must be the same as stated on your burner system
rating plate. If gas supply is different, DO NOT INSTALL.
Contact your dealer for immediate assistance.
INSUFFICIENT GAS PRESSURE WILL KEEP THE
PILOT (IF EQUIPPED) FROM OPERATING PROPERLY.
DO NOT USE IF GAS PRESSURE IS LOWER THAN THE
MINIMUM REQUIREMENT.
The minimum inlet gas-supply pressure for purposes
of input adjustment is 5" water column (w.c.) on natural
gas and 11" w.c. on L.P. gas. Insuffi cient gas pressure
will affect proper operation of the pilot (if equipped). Do
not install this gas appliance if minimum pressure is not
available. The maximum inlet gas-supply pressure is 10.5"
w.c. on natural gas and
13" w.c. on L.P. gas. The L.P. source must be regulated.
(Do not connect this appliance directly to an unregulated
L.P. gas tank - this can cause an explosion.) Do not
connect this appliance to a portable L.P. gas cylinder.
The gas piping system must be sized to provide
minimum inlet pressure at the maximum fl ow rate (BTU/
hr).
Undue pressure loss will occur if the pipe is too
small, or the run is too long. Gas supply pipe must be
1/2" minimum interior diameter. If the gas line is longer
than 20', a larger diameter line may be necessary. Refer
to the NFPA 54 guidelines for further details.
Input ratings shown in BTU per hour are for elevations
up to 2,000 ft. For elevations above 2,000 ft., refer to the
National Fuel Gas Code or contact manufacturer before
installing this product.
This gas appliance and its main gas valve must be
disconnected from the gas-supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig.
This gas appliance must be isolated from the gassupply piping system by closing the equipment shutoff
valve connected to the gas-supply line during any
pressure testing of the gas-supply piping system at test
pressures equal to or less than 1/2 psig.
Table 1 - Product Specifications
Burner Model
ISO-IBV36 model IBV-36 65k 21k 50k 22k 42%
ISO-IBV46 model IBV-46 75k 22k 60k 23k 46%
*P4 (EnerGuide) is a measurement of the Canadian Office of Energy Efficiency. Efficiencies are based on Normal input operation.
Firebox Model
(purchased separately)
Table 2 - Technical Data
Specification Value Q T Y.
Burner system battery type AA battery 4
Remote transmitter battery type 12V battery 1
BTU Rating
Nat Gas LP Gas
High Low High Low
26
Thermal
Efficiency
P4*
Earthcore Industries
BURNER PARTS LIST
08/2017 BVETTO B-Vent Gas Fireplace
ISOKERN Gas Log Set - Burner Parts List
Thermocouple
Pilot
Electrode
1
Flash tube
24/30 burner model shown
Note: Photos not to scale
Replacement parts can be ordered
from your local ISOKERN dealer.
The log set is purchased and packaged
separately; contact your local ISOKERN
dealer when ordering. Refer to the
instructions included with the log set.
12
13
7
6
5
Bottom view
11
10
9
14
15
Remote transmitter and switch box
batteries included with burner system.
2
3
4
8
Item Description Part No. Qty. Part No. Qty.
1.orPilot assembly (natural)
Pilot assembly (propane)
2.orControl valve (natural)
Control valve (propane)
3. Control module / remote receiver IMP-6 1 IMP-6 1
4. Main & motor harness assembly WH-02 1 WH-02 1
5. Battery box BAT-02 1 BAT-02 1
Switch box assembly
6.
(includes battery box, switch, heat shield)
7. Decorative heat shield HS-42 1 HS-42 1
8. Flex connector (w/ adapter), 1/2" O.D. x 24" CK-5-24SP 1 CK-5-24SP 1
9. Remote transmitter (only) AT-2VA-1 1 AT-2VA-1 1
10. Lava fyre coals LFC-6 1 LFC-6 1
11. Lava granules LF-5 1 LF-5 1
12. Glowing embers EM-21B 2 EM-21B 3
13. Bryte coals EM-11 1 EM-11 1
14. Wood chunks WC-6 1 WC-6 1
15. Log locator w/ screw and nut (ISO-IBV46 model only) - - UP-17 2
27
ISO-IBV36 model ISO-IBV46 model
PAC-12
PAC-12P
SV-47
SV-47P
SBA-02 1 SBA-02 1
1
1
1
1
PAC-12
PAC-12P
SV-47
SV-47P
1
1
1
1
Earthcore Industries
SPECIFICATIONS (cont.)
WIRING DIAGRAM
BVETTO B-Vent Gas Fireplace 08/2017
ISOKERN Gas Log Set - Wiring Diagrams
Pilot
assembly
Insulated copper
Copper
(Main gas out)
Pilot
Black
Main wire
harness
White
Orange
Green
Black
(GND)
(Pilot gas out)
FIGURE 32
WIRING DIAGRAM
TO SPILL SWITCH
Ignition
Motor wire
harness
Red
Red Black
module
Black
Female
Step motor
main fl ame
Male
Valve
Battery
pack
Main
fi replace
switch
FemaleMale
To
spill
Gas
inlet
Red
Black
Motor wire
harness
Power vent
control box
Ignition
module
Main fl ame
S
step output
I
WIRING DIAGRAM TO SPILL
SWITCH AND POWER VENT
Motor wire
harness
Red
Black
Red
Battery
pack
Ignition
module
Female Male
Black
To
fi replace
spill
switch
Battery
pack
FIGURE 33
28
MaleFemale
Male
Female
FIGURE 34
Earthcore Industries
Connect spill switch wires
08/2017 BVETTO B-Vent Gas Fireplace
ISOKERN Gas Log Set - Burner Installation
The BVETTO burner system must be installed in an
ISOKERN B-vent (BVETTO) fireplace and by a qualified
professional service technician. Instructions must be
followed carefully to ensure proper performance and full
benefit from the burner system. Check to be sure the
burner system is designed and labeled for the type of
gas (natural or propane gas) supplied to the fireplace.
Fireplace floor must be level, clean, and smooth.
WARNING: Failure to position the parts in accordance
with these diagrams or failure to use only parts
specifically approved with this appliance may result
in property damage or personal injury.
REFER TO THE PARTS LIST WHEN FOLLOWING
THESE INSTRUCTIONS.
Place burner
Keep clean and DO NOT
cover with embers
FIGURE 35
FIGURE 36
ISO-IBV36 burner model shown here.
Ensure a clean panel
1. MAKE SURE THE FIREPLACE GAS SUPPLY IS
TURNED OFF.
2. Place the burner system in the fireplace. Center the
Switch box
burner from left to right in the fireplace. Reference Figure
35 for orientation.
FIGURE 37
NOTE: Ensure the porcelainized panel is clean of all dust.
Use a clean soft cloth if necessary. (Figure 36)
3. Disconnect the black wires, from the main harness to
the switch box, as shown in Figure 37.
For units to be installed without a power vent,
Disconnect black wires
Switch box wire
Main harness wire
follow step 4 below. For units to be installed with a
power vent follow step 5.
4. Units without Power vent: Locate the two spill switch
wires coming out of the hole in the lower right side of the
fireplace. Connect them to the free wires now coming
from the main harness and switch box (male to female).
Spill switch wires
FIGURE 38
See Figure 38 and the WIRING DIAGRAM TO SPILL
SWITCH in the SPECIFICATIONS section.
29
Earthcore Industries
Place heat shield
ent wires
BVETTO B-Vent Gas Fireplace 08/2017
ISOKERN Gas Log Set - Burner Installation
FIGURE 39
FIGURE 40
Main harness wire
Power vent wire
Connect spill switch and power v
Spill switch wire
Spill switch wire
Power vent wire
Connect power vent to switch box wire
Switch box wire
5. Units with Power vent: Locate the two spill switch
and two power vent wires coming out of the hole in
the lower right side of the fireplace. Connect them to
the free wires now coming from the main harness and
switch box (male to female). See Figure 39, Figure 40,
and the WIRING DIAGRAM TO SPILL SWITCH AND
POWER VENT in the SPECIFICATIONS section.
6. At this stage the burner system batteries are to be
installed. Reference the INSTALLING/REPLACING
BATTERIES section for details.
7. Place the switch box on its side, at the rear left corner
of the fireplace. It should rest with its bottom as near as
possible and facing the fireplace wall. It must not be
placed directly next to the burner pan area to avoid
damage to the batteries. See Figure 41 & Figure 42.
IMPORTANT: Ensure that the box wire remains away
from the burner system and its flame during operation.
8. Place the decorative heat shield over the switch box as
shown in Figure 43.
FIGURE 41
FIGURE 42
Place switch box
Place switch box
DO NOT
place box
in this area
Place switch box:
• Rear left corner, on side,
• exposed side against fi replace wall
Proper box placement
Must rest on fl oor and at rear corner
FIGURE 43
30
Earthcore Industries
Place lava media
08/2017 BVETTO B-Vent Gas Fireplace
ISOKERN Gas Log Set - Burner Installation
9. Locate the gas-supply stub inside the fireplace and
remove the cap, if attached.
CAUTION: When removing the cap, make sure the stub
does not turn, loosening the connection inside the wall.
10. Be sure gas to the fireplace is off. Remove the
adapter connected to the flex connector (pre-installed on
the burner system). Attach the adapter to the gas-supply
stub using a pipe compound resistant to all gasses.
Tighten securely. Then attach the open end of the flex
connector to the adapter. Tighten securely. (Figure 44)
11. LEAK TEST: Turn on the fireplace gas supply, and test
at all connections for leaks using the appropriate soapy
water solution. If bubbles appear, a leak is present. Turn
off the gas and tighten at all connections. Repeat until
no leaks are present. If a leak persists, turn off the gas
supply and contact the local gas company or dealer.
NEVER USE A FLAME TO CHECK FOR LEAKS.
12. LIGHTING TEST: Prior to proceeding with installation,
perform a lighting test (see lighting instructions for
lighting your burner). Allow the unit to completely cool
after testing.
Gas supply stub
Flex connector
Adapter
Connect gas supply
FIGURE 44
FIGURE 45
13. Spread the supplied lava granules on the floor of
the fireplace, around the front and sides of the burner
system. (Figure 45) The lava granules may be placed
around the switch box. Leave the front of the switch box
clear for control access.
14. Repeat this process for the supplied lava coals (on
top of the already placed lava granules).
NOTE: DO NOT place any lava media on the burner
system, or behind it.
15. Spread the supplied wood chunks on the lava media,
around the front and sides of the burner system. Leave
the front of the switch box clear for control access.
NOTE: DO NOT place any wood chunks on the burner
system, or behind it.
LOG LOCATORS (if applicable)
ISO-IBV 46" models include a set of log locators. They
are used to support the front logs of select log sets. If
the log set chosen includes log locator install details (in
placement instructions), install accordingly. If not, discard
the log supports.
IMPORTANT: For all valves, the air MUST be purged from
the gas line before the pilot will light and burn properly.
The time needed to purge will depend on the length of
the gas line to the unit and the amount of time since the
unit or gas line was last used. It may take several minutes
before all the air is purged and the pilot will light and
burn properly. Reference the LIGHTING INSTRUCTIONS
section in this manual.
31
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
ISOKERN Gas Log Set - Log Set Installation
Log Set Placement
Follow the instructions included with the log set for
step by step log placement. Read all safety warnings and
important information in the instructions supplied with
the log set to ensure proper placement.
IMPORTANT: DO NOT add any additional embers to
this log set. Any additional embers will cause unsafe
operation.
IMPORTANT: Adequate ventilation is absolutely
necessary! Provided significant, noticeable sooting does
not occur, some flexibility is possible in log placement
Charred Hickory (ISF-CH-24) shown
to suit your individual preference (select log sets). If you
experience a continued accumulation of black carbon
(soot) on your logs it is an indication of incomplete
combustion and you should move the effected log(s)
so as to minimize the flame contact on the effected
log(s). Read the instructions supplied with the log set
completely and carefully.
Summit Pine (ISF-SP-24) shown
CAUTION: BURN HAZARD! Logs will remain hot for
some time after use. If you need to reposition any log to
maintain the proper layout, use heat-resistant gloves or
allow logs adequate time to cool before handling.
Sandhill Oak (ISF-SH-24) shown
32
Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
ISOKERN Gas Log Set - Installing/Replacing Batteries
CAUTION: Ensure the unit is connected to the gas line
and has been tested for leaks before you insert batteries.
CAUTION: Turn off the remote and/or burner and allow the
unitto completely cool prior to any battery replacements.
Important: Prior to inserting batteries, always apply
a smallamount of dielectric grease to both ends of
each battery. This will ensure conductivity and prevent
moisture from affecting the contact.
IMPORTANT: Low/dead batteries will affect burner
system operation. Replace batteries any time the burner
will not turn on.
Remote Transmitter Battery
The remote transmitter requires one 12V battery to
operate (included).Locate the transmitter, remove the lid
(found on rear), and properly insert the new battery as
marked. Re-secure the lid. (Figure 46)
Remove lid for
12V battery
access
FIGURE 46
Switch Box Batteries
The burner system requires 4 AA batteries to operate
(included). Locate the switch box and turn it over. Detach
the battery box from the Velcro. Use a small Phillips
screwdriver to remove the screw found on the bottom
of the battery box, then remove the battery lid. Properly
insert the new batteries as marked. (Figure 47) Replace
the battery lid using the screw, replace the battery box
ontothe Velcro, and re-position the switch box in the
fireplace.
IMPORTANT: Always replace the decorative heat shield
over the switch box after battery replacement.
AA Batteries
FIGURE 47
33
Earthcore Industries
ON
OFF
HI
LOW
BVETTO B-Vent Gas Fireplace 08/2017
ISOKERN Gas Log Set - Lighting Instructions
FOR YOUR SAFETY, READ BEFORE LIGHTING
WARNING: If you do not follow these instructions
exactly, a fire or explosion may result causing property
damage, personal injury or loss of life.
A. This appliance is equipped with an ignition device that
automatically lights the pilot. DO NOT attempt to light
the pilot by hand.
B. BEFORE OPERATING, smell all around the appliance
area for gas. Be sure to smell next to the floor because
some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
• Do not light any appliance.
• Do not touch any electric switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the
fire department.
ON
I
FIGURE 48
O
OFF
C. Use only the control system or remote to light the
pilot. This valve will not operate if the pilot is not lit and
stable.
D. Do not use this appliance if any part has been under
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of the
control system and any gas control which has been
under water. Attempted operation may result in fire or
explosion resulting in property damage, personal injury
or loss of life.
Remote Lighting
CAUTION: DO NOT attempt to light the pilot by hand.
NOTE: If the remote does not function, and batteries
with an adequate power level are installed, refer to the
SYNCING THE REMOTE section.
NOTE: Steps 1 and 2 may not be required if previously
done during an earlier lighting.
1. Locate the ON/OFF switch at the front of the switch
box. Press the switch to the OFF (O) position. (Figure
48)
2. Locate the OFF/REMOTE slide actuator on the left rear
of the burner. Slide the actuator to the right / REMOTE
position. (Figure 49)
FIGURE 49
FIGURE 50
Switch box, ON/OFF
Remote receiver
OFF/REMOTE slide actuator (left rear of burner)
Signal
light
OFF
button
ON
button
HI-LOW
fl ame
adjustment
buttons
3. Locate the remote transmitter and press the ON
button. (Figure 50) The system will beep and the ignition
sequence will begin.
The igniter will begin to spark. After the pilot lights
andis established, the valve will automatically open and
the burner will light. Adjust to the desired setting with
the remote transmitter. See the REMOTE OPERATING
INSTRUCTIONS section for details.
NOTE: The ignition sequence will take approximately 5
seconds.
WARNING: If pilot fails to light within 10 seconds, press
the OFF button on the remote transmitter or slide the
OFF/REMOTE slide actuator (left) to OFF to turn off the
system. Allow five (5) minutes for any gas in the unit to
dissipate, then repeat steps 2 & 3 above. IF YOU SMELL
GAS, SEE STEP B ABOVE.
If the pilot fails to light after several tries, turn all
control/remote system components to OFF and contact
a qualified professional service technician.
Remote transmitter detail
34
Earthcore Industries
(cont.)
)
08/2017 BVETTO B-Vent Gas Fireplace
ISOKERN Gas Log Set - Lighting Instructions
Manual Lighting
CAUTION: DO NOT attempt to light the pilot by hand.
1. Locate the OFF/REMOTE slide actuator on the left rear
of the burner. Slide the actuator to the left / OFF position.
(Figure 51)
2. Locate the ON/OFF switch at the front of the switch
box. Press the switch to the ON (I) position. (Figure 52)
The igniter will begin to spark. After the pilot lights and
is established, the valve will automatically open and the
burner will light.
NOTE: The ignition sequence will take approximately 5
seconds.
WARNING: If the pilot fails to light within 10 seconds,
turn OFF the system. Allow five (5) minutes for any
gas in the unit to dissipate, then repeat step 2 above.
IF YOU SMELL GAS, SEE STEP B AT BEGINNING OF
LIGHTING INSTRUCTIONS.
If the pilot fails to light after several tries, turn the
system OFF and contact a qualifi ed professional service
technician.
Remote receiver
OFF/REMOTE slide actuator (left rear of burner
ON
I
O
OFF
Switch box, ON/OFF
FIGURE 51
FIGURE 52
NOTE: In manual mode, the remote transmitter will not
operate the burner system.
Shutting Down
• For remote shut down, press the OFF button on the
remote transmitter. If remote is unavailable, slide the
OFF/REMOTE slide actuator (on left rear of burner) to the
left / OFF position.
• For manual shutdown, press the ON/OFF switch on the
front of the switch box to the OFF (O) position.
NOTE: If the system needs to be relit immediately after
shutting down, the thermocouple will require 20 seconds
to cool down before the system can reignite.
Pilot Appearance
Periodically check the pilot for proper flame pattern.
The pilot flame should encircle the, and is preset at the
factory. (Figure 53)
If the pilot flame burns incorrectly; shut down
completely and contact a qualified professional
service technician.
FIGURE 53
Proper pilot fl ame
35
Earthcore Industries
ON
OFF
HI
LOW
BVETTO B-Vent Gas Fireplace 08/2017
ISOKERN Gas Log Set - Remote Operations
ORIENTATION
Prior to remote transmitter use, light the appliance
per the REMOTE LIGHTING section. The remote
transmitter will only operate the unit when it is in the
remote mode. Familiarize yourself with the transmitter
buttons, as illustrated in Figure 54.
Identify the four transmitter buttons (used with this
system):
• ON BUTTON: Turns the system ON.
• OFF BUTTON: Turns the system OFF.
• HI BUTTON: When the system is on, this button is
used to increase the flame to the desired height.
• LOW BUTTON: When the system is on, this button
is used to decrease the flame to the desired
height.
FLAME HEIGHT
Seven flame height levels are available. Press the
HI or LOW buttons to enter the Flame Height mode.
Pressing the HI or LOW button once will increase or
decrease the flame height by 1 of 7 increments. (Figure
54)
FIGURE 54
Signal
light
OFF
button
Remote transmitter detail
ON
button
HI-LOW
fl ame
adjustment
buttons
36
Earthcore Industries
Flame appearance
08/2017 BVETTO B-Vent Gas Fireplace
ISOKERN Gas Log Set - Cleaning & Servicing
NOTE: Servicing may be necessary to ensure proper pilot
operation and proper burn characteristics. Always shut off
the gas to the appliance while performing service work.
Allow the appliance to cool before servicing.
Installation, service, and repair must be done by
an NFI Certified or other qualifi ed professional service
technician. The appliance should be examined before
use, and must be inspected at least annually to prevent
burner shutdown, sooting, odors, etc. It must be checked
for clean burning operation and proper pilot appearance,
with the correct tools to service this unit. More frequent
servicing may be required. It is imperative that all control
components and compartments, burner(s), air shutters,
and circulating air passageways of the appliance be kept
clean and free of all obstructions (as applicable).
In addition, a periodic examination and cleaning of the
ISOKERN fireplace venting system should be conducted
by a qualified professional service technician.
Any safety screen or guard removed for servicing
must be replaced prior to operating this appliance.
Verify proper operation after servicing.
If, after a period of use, the flames start to exhibit
unusual shapes and behavior, or the burners fail to ignite
smoothly, the burner may require cleaning or servicing. If
this happens, it is recommended to contact the nearest
dealer to get the appliance serviced.
Do not remove the rating plates or the warning
tags. These are an integral safety and identification
component of this appliance.
We recommend following these instructions at
the beginning of each fireplace season and as needed
throughout the year, depending on your usage pattern
and the environmental conditions in your home. More
frequent cleaning and maintenance may be necessary
when burning propane gas than with natural gas.
Flame Description
Observe the flames. The top and middle burner
flames should be blue at the base and a combination of
blue/yellow at the body and at the tips. The top flames
should be approximately 3-5" above the logs, with the
center flame being the tallest. The middle flames should
be approximately at or below the top of the front log. The
ember flames should be 1/4" to 1" above the embers.
(Figure 56)
(rear of burner assy)
Control module
SYNC button
Sync detail
FIGURE 55
Syncing The Remote System
NOTE: Syncing the remote system will cause the burner
to ignite.
Ensure the burner system is off and completely cool.
The remote receiver (found on the rear of the burner
assembly) has a sync button. (Figure 55)
Locate the OFF/REMOTE switch actuator on the left
rear of the burner. Slide the actuator to the right / REMOTE
position, then press the sync button and release. One
beep will be heard. Then press and hold the ON button
on the remote transmitter, until 4 rapid beeps are heard
and the pilot begins to spark. The remote system is now
synced. If ignition is not desired, press OFF on the
remote to shut off.
FIGURE 56
37
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
ISOKERN Gas Log Set - Troubleshooting
BURNER SHUTTING DOWN DURING OPERATION
A. Insufficient or excessive gas pressure A1. Check gas pressure (Read D.- F. of IMPORTANT PRE-INSTALLATION
AND FIREPLACE SAFETY INFORMATION section, & check with local gas
company).
A2. Other gas appliances may be on the same gas line, dropping gas
pressure to log set. Check pressures with everything operating to ensure
adequate pressure.
B. Log placement B. Reference the LOG PLACEMENT section in this manual
for recommended log positioning.
C.
Pilot flame lifting off thermocouple/generator
D. Pilot (remote compatible) D. Contact your dealer for instructions on replacement.
E. Blockages on burner E. Vacuum any lava granules or material that may have fallen onto
burner pipe area.
A.
Pilot flame lifting off thermocouple/generator
B. Electronic spark not lighting pilot B. Check to ensure sparking when activated.
Note: You may need to turn or press igniter several times to ignite pilot.
See LIGHTING INSTRUCTIONS for your control valve.
C. Igniter electrode wire loose C. Check wiring and reconnect any loose wiring.
D. Gas supply off/manual shutoff valve closed D. Turn on gas supply or open manual shutoff valve.
E. Air in gas line E. Bleed the gas supply line and repeat LIGHTING INSTRUCTIONS
until air is removed.
F. Pilot hood blocked F. Check for debris or dirt / Clean pilot
C. Check gas pressure (see section A1).
PILOT WILL NOT LIGHT
A. Check gas pressure (see Section 1, A1 of this table).
LOW FLAME HEIGHT
A. Gas pressure A. Check gas pressure (see Section 1, A1 of this table).
BURNER NOT BURNING EVENLY
A. Burner orifice clogged A. Clean burner orifice.
B. Remote set on low fl ame
(if option available)
B. Adjust flame with remote transmitter.
C. Top burner lights; C1. Check gas pressure. Can be caused by too small of a gas line (see
bottomburner has delayed ignition. Section 1, A1 of this table).
C2. Low propane
ODORS
A. Gas leak A. Shut off gas, if possible. Follow instructions on front page. Have a
qualified professional installer or the gas company correct all leaks.
B. New home, new carpet, or new paint B. When these odors are drawn into the fireplace, this may cause
objectionable odors. Thoroughly ventilate the area before restarting
your log set.
C. Damper closed C. Ensure that damper is open.
PILOT WILL NOT STAY LIT
A. Valve won’t hold A. Contact your dealer for instructions on replacement.
B. Pilot hood not aimed at thermocouple B. Pilot hood bent; replace pilot or angle pilot hood properly so pilot
flame hits thermocouple.
C.
Pilot line bent / kinked at connection to valve
C. Replace pilot line.
D. Thermocouple is loose D. Tighten thermocouple nut at gas control valve. (Do not over tighten.)
E. Thermocouple cracked or worn out E. Replace thermocouple.
F. Excessive down draft F. Install chimney cap / Outside chimney too close to other peaks /
Check chimney flue for proper height / Poorly designed chimney.
A. System deactivated due to closed damper A. Open damper.
B. Low/dead batteries in remote transmitter B. Replace batteries as needed (if applicable).
AND/OR remote receiver / switch box
(select models only)
BURNER WILL NOT TURN ON
38
Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
- General Information & Components
The environmentally friendly ENERVEX EcoDamper
System is the first completely automated draft and
damper system for use with gas fireplaces. The
EcoDamper System quietly manages a perfect draft and
prevents conditioned air from escaping through the
chimney when the fireplace is not in use. It eliminates
the need for glass doors, opening up many new design
options while allowing for a larger view area of the fire
and a more natural look.
The system consists of the RS 9 Chimney Fan,
the Mechanical Fireplace Damper (MFD), the ADC100
Control and the PDS-1 Proven Draft Switch.
RS 9 Chimney Fan
Made of high quality, recycled cast aluminum, RS
Chimney Fans keep the perfect draft for a long time. The
fan features a quiet, enclosed pre-lubricated motor and
is recommended to be used with gas or oil fireplaces,
stoves, ovens, furnaces, water heaters, BBQs and pizza
ovens.
MFD Mechanical Fireplace Damper
The low profile Mechanical Fireplace Damper (MFD)
is an accessory to be used in conjunction with an ADC100
control and a chimney fan as part of the EcoDamper and
Intellidraft System. This damper prevents conditioned air
from escaping through the chimney when the fireplace is
not in use and eliminates the need for glass doors.
Component Part# Description
EXH0021 RS 9 Chimney Fan
EXH2810-24 MFD Mechanical Fireplace Damper
EXH0060 ADC100 Draft Control
(includes PDS-1)
ADC100 Draft Control
The ADC100 Control, for gas appliances, has preand postpurge features, an integrated damper relay and
includes a draft switch that shuts the appliance off when
there isn’t enough draft, protecting your family from
dangerous flue-gasses.
PDS-1 PROVEN DRAFT SWITCH
Use the PDS-1 Proven Draft Switch to provide
protection from insufficient draft. When there is an unsafe
draft, the switch shuts down the gas-fired appliance or
fireplace.
Installations must conform to requirements of the
authority having jurisdiction. Where required by the
authority having jurisdiction, the installation must also
conform to the Standard for Draft Equipment and The
National Fuel Gas Code, ANSI Z223.1/NFPA 54.
All electrical wiring must be in accordance with
the requirements of authority having jurisdiction or, in
the absence of such requirements, with the National
Electrical Code, NFPA70.
This installation manual does not contain any system
design documentation. System design documentation is
available from any authorized ENERVEX representative.
Accessories, fans, and variable frequency drives are
not covered by this manual. Please refer to these
component’s individual manuals.
EXH1130 PDS-1 Proven Draft Switch
(included with ADC100)
39
Earthcore Industries
FAN
MOTOR
BVETTO B-Vent Gas Fireplace 08/2017
ECODAMPER System - Installation
TO REDUCE THE RISK OF FIRE, ELECTRICAL
SHOCK OR INJURY TO PERSONS, OBSERVE THE
FOLLOWING:
1. Use this unit in the manner intended by the
manufacturer. If you have questions, contact the
manufacturer at the address or telephone number listed
on the front of the manual.
2. Before servicing or cleaning the unit, switch off at
service panel and lock service panel to prevent power
from being switched on accidentally.
3. Installation work and electrical wiring must be done by
a qualified person(s) in accordance with applicable codes
and standards.
4. Follow the appliance manufacturer’s guidelines and
safety standards such as those published by the National
Fire Protection Association (NFPA), and the American
Society for Heating, Refrigeration and Air Conditioning
Engineers (ASHRAE), and the local code authorities.
5. This system must be grounded.
MECHANICAL DRAFT SYSTEM FOR A GAS-FIRED
FIREPLACE WITH DAMPER AND SAFETY SYSTEM
PER NFPA 54/IFGC
Application
This installation shows a combination fireplace
and damper system. The ADC100 control monitors
fan and damper operation and the safety system. No
adjustments are necessary after the system is installed
and commissioned. The ADC100 does not have to be
visible and can be installed in the attic. (Figure 57)
Proven Draft Switch is part of ADC100 control.
SEQUENCE OF OPERATION
1. During commissioning, the fan speed is set using the
potentiometer located on the ADC100 control board.
2. When the gas igniter is activated, the fan speed
increases and the damper begins to open. Once the
damper is fully open and the proven draft switch closes,
the fan returns to the speed setting of the potentiometer
and the ADC100 releases the gas valve.
3. If proper draft is not maintained, the ADC100 will
increase fan speed gradually until the PDS closes. If the
PDS has not closed 10 seconds after the fan reaches
100% speed, the ADC100 will shut off the gas valve and
go into alarm mode. If the PDS closes while in alarm
mode, the fan will resume the original speed setting.
FIGURE 57
4. Once the fireplace is turned off, the fan will continue
to operate for a set post-purge time (adjustable between
0-10 minutes) to remove any remaining products of
combustion before shutting down. The damper closes 10
seconds after the fan is shut off.
5. In case of a mechanical or electrical failure the ADC100
will shut off the gas valve.
40
Earthcore Industries
RED
ORANGE
WHITE
BLACK
GREEN
FAN
MOTOR
120/1/60
All wiring must be in
flexible or rigid metal
conduit
N
L
FAN CONTROL UNIT
7 8 9 10 11 12 13 14 15 16 17 18 19
1 2 3 4 5 6
WEATHERPROOF BOX
MAIN CONTROL UNIT
6 5 4 3 2 1
All wiring must be in
metal conduit or
shielded cable
08/2017 BVETTO B-Vent Gas Fireplace
ECODAMPER System - Wiring Diagram
FIGURE 58
41
Earthcore Industries
BVETTO B-Vent Gas Fireplace 08/2017
Notes
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42
Earthcore Industries
08/2017 BVETTO B-Vent Gas Fireplace
Registration Card
Please tear out along dashed lines and send to:
Earthcore Industries
Attn: Technical Department
6899 Phillips Industrial Blvd
Jacksonville, FL 32256
Dealer _______________________________________________________________________________________________
Date of Purchase: _____________________________ Date Of Installation: _____________________________________
Address: _____________________________________________________________________________________________
City, State, Zip: _______________________________________________________________________________________
Phone No.: ___________________________________
Fireplace Size (Circle One): BVETTO 36” (80B36) BVETTO 46” (80B46)
Gas Type (Circle One): Natural Gas Propane
Fireplace Serial Number: _______________________________________________________________________________
(Located on Rating Plate Inside Fireplace)
Buyer: _______________________________________________________________________________________________
Address: _____________________________________________________________________________________________
City, State, Zip: _______________________________________________________________________________________
Phone No.: ___________________________________
Installed By: __________________________________________________________________________________________
Address: _____________________________________________________________________________________________
City, State, Zip: _______________________________________________________________________________________
Phone No.: ___________________________________
43
Warranty & Disclaimer
Isokern BVETTO B-Vent Gas Fireplace
Earthcore offers a Lifetime Warranty for all Isokern components, to be free from defects in materials that negatively
affect system performance from the date of purchase, subject to the terms and conditions of this limited warranty.
This warranty covers only the above stated components. THIS WARRANTY DOES NOT COVER DRAFTING, SMOKING
OR PUFFING OF THE FIREPLACE SYSTEM. Factors beyond the manufacturer’s control affect fireplace drafting,
smoking, and puffing, and ISOKERN cannot guarantee these aspects of performance.
EXCLUSIONS AND LIMITATIONS
This Lifetime Warranty applies only if the Isokern Product is installed in the United States and Canada and only if
operated and maintained in accordance with the printed instructions accompanying the Product and in compliance with
all applicable installation and building codes and good trade practices. This warranty is non-transferable and extends to
the original owner only. The following do not carry the Lifetime Warranty but are warranted as follows:
Burner – The BVETTO gas log burner has a one year warranty against any performance defects.
Gas Logs – The BVETTO gas logs have a one year warranty against breakage; except breakage due to mishandling or
negligence.
Control Valve – If the BVETTO gas log burner was purchased with a gas control valve, the gas control valve has a one
year warranty against any performance defects.
Gas Logs – All painted surfaces that get wet due to rain, flooding, household pets, wild animals or birds, or get
damaged due to negligence or disaster, have no warranty.
Accessories – Embers and lava coal that get wet due to rain, flooding, household pets, wild animals or birds, or get
damaged due to negligence or disaster, have no warranty.
Parts not otherwise listed carry a 90 day warranty from the date of installation.
If a component is found to be defective under the terms of this warranty the party to whom this warranty is extended
shall, notify Earthcore, 6899 Phillips Industrial Blvd, Jacksonville, Florida 32256, in writing, by registered mail, within
thirty (30) days following the discovery of the defect within the lifetime warranty period. The notice shall contain (1) the
date of purchase; (2) place of purchase; (3) address of installation; (4) name, address and phone number of the owner;
and (5) a brief description of the defect.
Earthcore, or any division thereof, is not responsible for any labor costs or indirect costs incurred for the replacement
of defective components.
Earthcore is not responsible for misuse or mishandling of components. Nothing in this warranty makes Earthcore, or
any division thereof, liable in any respect for any injury or damage to the building or structure in which the fireplace or
chimney system has been installed or to persons or property therein arising out of the use, misuse, or installation of
properly manufactured ISOKERN product.
EARTHCORE, OR ANY DIVISION THEREOF, SHALL NOT BE HELD LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES OR EXPENSES ARISING OUT OF THE USE OF THE FIREPLACES OR CHIMNEY SYSTEMS. ALL SUCH
DAMAGES AND EXPENSES ARE HEREBY EXCLUDED.
This warranty is null and void when the fireplace or chimney systems are not installed pursuant to the installation
instructions provided by Earthcore or local building codes have not been followed completely.
This warranty applies only to those fireplace and chimney systems installed in the continental United States and
Canada. If any part of this warranty is found to be unenforceable, the remaining parts shall remain in force and effect.
EARTHCORE HEREBY DISCLAIMS ALL GUARANTEES AND WARRANTIES, EXPRESS OR IMPLIED, BEYOND THE
WARRANTIES SET FORTH HEREIN.
6899 Phillips Industrial Blvd. • Jacksonville, FL 32256 • 904.363.3417 • f: 904.363.3408 • earthcore.co
MKG1004_0817
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