UNVENTED GAS LOG
HEATER or
VENTED DECORATIVE
APPLIANCE
INST ALLATION AND OPERA TING
INSTRUCTIONS
This appliance may be installed
in an aftermarket, permanently
located, manufactured (mobile)
home, where not prohibited by
local codes.
This appliance is only for use
with the type of gas indicated on
the rating plate. This appliance is
not convertible for use with other
gases.
This is an unvented gas-fi red
heater. It uses air (oxygen)
from the room in which it is
installed. Provisions for adequate
combustion and ventilation air
must be provided.
Refer to page 7.
If the information in this manual is not followed exactly ,
a fi re or explosion may result causing property damage,
personal injury or loss of life.
– Do not store or use gasoline or other fl ammable
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.
• Do not touch any electrical switch; do not use any
• Immediately call your gas supplier from a neighbor's
• If you cannot reach your gas supplier, call the fi re
– Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
MODEL: NB18, NB24
Natural Gas or Liquid Propane
Control Type: Millivolt
WARNINGS
phone in your building.
phone. Follow the gas supplier's instructions.
department.
READ AND SAVE THESE INSTRUCTIONS
CONTENTS
Important Safety Information ..................................3
Getting Started ..........................................................5
Product Features and Specifi cations ....................6
Natural Gas .........................................................6
Propane/LPG .......................................................6
Ignition Controls ...................................................6
Pilot/ODS .............................................................6
Thermal Generator ..............................................6
General Installation Information ............................7
Codes ..................................................................7
Adequate Combustion and Ventilation Air ...........7
Fireplace and Hearth Dimensions ..........................9
Placement in a Fireplace
with a Restrictive Barrier .......................................10
Clearances and Height Requirements .................11
Floor Clearance .....................................................16
Fireplace Preparation ............................................17
Installing Vented Applications .............................18
Connecting the Gas ...............................................19
Electrical Wiring (Millivolt) .....................................21
Connecting Remote Receiver ............................22
Checking System Operation ..............................22
Berkley Oak Log Placement .................................23
Ember, Grate, and Rock Installation .....................25
Optional Cast Iron Grate
and Andirons Installation ................................25
Flame Appearance ..................................................26
Checking Burner Flames ......................................27
Operating Instructions ...........................................28
For Your Safety Read Before Lighting ...............28
Millivolt Control Lighting Instructions .................29
Match Lighting Instructions ................................30
Cleaning Instructions .............................................30
Troubleshooting .....................................................31
Replacement Parts .................................................33
Burner Assembly ...............................................33
Logs ...................................................................35
Warranty ....................................................Back page
Checking Gas Pressure ........................................20
Millivolt ...............................................................20
2 81D0107
IMPORTANT SAFETY INFORMATION
INSTALLER
Please leave these instructions with the appliance.
IMPORTANT
Read these instructions carefully before installing or trying to operate this vent-free gas heater.
• Any change to this heater or its controls can be dangerous.
• Improper installation or use of the heater can cause serious injury or death from fi re,
burns, explosion or carbon monoxide poisoning.
• Do not allow fans to blow directly into the fi replace. Avoid any drafts that alter burner
fl ame patterns.
WARNING
• Do not use a blower insert, heat exchanger insert or other accessory, not approved
for use with this heater where applicable.
1. Due to high temperatures, the appliance should be
located out of traffic and away from furniture and
draperies.
2. Children and adults should be alerted to the hazard
of high surface temperature and should stay away to
avoid burns or clothing ignition.
3. Young children should be carefully supervised when
they are in the same room with the appliance.
4. Do not place clothing or other flammable material on
or near the appliance.
5. Any safety screen or guard removed for servicing an
appliance, must be replaced prior to operating the
heater.
6. Installation and repair should be done by a qualified
service person.
7. To prevent malfunction and/or sooting, an unvented
gas heater should be cleaned 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, etc. It is imperative
that control compartments, burners and circulating
air passageways be kept clean.
8. CARBON MONOXIDE POISONING: Early signs of
carbon monoxide poisoning are similar to the flu with
headaches, dizziness and/or nausea. If you have these
signs, obtain fresh air immediately. Have the heater
serviced as it may not be operating properly.
9. The installation must conform with local codes or, in
the absence of local codes, with the National Fuel Gas
Code, ANSI Z223.l/NFPA54.
OWNER
Please retain these instructions for future reference
10. This unit complies with the latest revision of ANSI
Z21.11.2-2007 Unvented Heaters and also complies with
ANSI Z21.60 Decorative Vented Appliances for Solid Fuel
Burning Fireplaces. State and local codes may only allow
operation of this appliance in a vented configuration.
Check your state or local codes. For vented operation,
see “Vented Instructions” in this manual.
11. Do not install the heaters in a bathroom or bedroom.
12. Correct installation of the ceramic fiber logs, proper
location of the heater, and annual cleaning are necessary to avoid potential problems with sooting. Sooting,
resulting from improper installation or operation, can
settle on surfaces outside the fireplace. See log placement
instructions for proper installation.
13. Avoid any drafts that alter burner flame patterns. Do not
allow fans to blow directly into fireplace. Do not place
a blower inside burn area of firebox. Ceiling fans may
create drafts that alter burner flame patterns. Sooting and
improper burning will occur.
14. Caution: Candles, incense, oil lamps, etc. produce
combustion byproducts including soot. Vent-free appliances will not filter or clean soot produced by these types
of products. In addition, the smoke and/or aromatics
(scents) may be reburnt in the vent-free appliance which
can produce odors. It is recommended to minimize the
use of candles, incense, etc. while the vent-free appliance
is in operation.
15. This is an unvented gas-fired heater. It uses air (oxygen)
from the room in which it is installed. Provisions for
adequate combustion and ventilation air must be provided. See page 8.
Continued on page 4
.
81D0107 3
IMPORTANT SAFETY INFORMATION
Continued from page 3
16. Keep room area clear and free from combustible materials, gasoline and other flammable vapors and liquids.
25. Never burn solid fuels in a fireplace where a unvented
room heater is installed.
17. Unvented gas heaters are a supplemental zone heater.
They are not intended to be the primary heating appliance.
18. Unvented gas heaters emit moisture into the living area.
In most homes of average construction, this does not pose
a problem. In houses of extremely tight construction,
additional mechanical ventilation is recommended.
19. During manufacturing, fabricating and shipping, various
components of this appliance are treated with certain
oils, films or bonding agents. These chemicals are not
harmful but may produce annoying smoke and smells
as they are burned off during the initial operation of the
appliance; possibly causing headaches or eye or lung
irritation. This is a normal and temporary occurrence.
The initial break-in operation should last four hours to
properly cure logs and rock wool, with the burner at the
highest setting. Provide maximum ventilation by opening windows or doors to allow odors to dissipate. Any
odors remaining after this initial break-in period will be
slight and will disappear with continued use.
20. Input ratings are shown in BTU per hour and are for
elevations up to 2,000 feet. For elevations above 2,000
feet, input ratings should be reduced 4 percent for each
1,000 feet above sea level. Refer to the National Fuel
Gas Code.
21. The appliance and its appliance 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 (3.5 kPa).
26. Always have a fireplace screen in place when the appliance is in operation and, unless other provisions for
combustion air are provided, the screen must have an
opening(s) for induction of combustion air.
Never connect unit to private (nonutility) gas wells. This gas is commonly
known as wellhead gas.
WARNING
We suggest that our gas hearth
products be installed and
serviced by professionals who
are certifi ed in the U.S. by the
National Fireplace Institute
(NFI) as Gas Specialists.
www.nfi certifi ed.org
®
MASSACHUSSETTS RESIDENTS ONLY:
Please see pages 40 & 41 for
additional information.
22. The appliance must be isolated from the gas supply
piping system by closing its equipment shutoff valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 psig
(3.5 kPa).
23. Do not use this room heater if any part has been under
water. Immediately call a qualified service technician
to inspect the room heater and to replace any part of the
control system and any gas control which has been under
water.
24. This appliance must not be used with glass doors in the
closed position. This can lead to pilot outages and severe
sooting outside the fireplace.
4 81D0107
GETTING STARTED
MAKE SURE YOU HAVE RECEIVED ALL PARTS:
Check your packing list to verify that all listed parts have been received. You should have the following:
• Unvented Gas Log Burner Assembly • Two (2) Plastic Bags Containing Crushed Volcanic Rock
• Installation/Operating Instructions • Two (2) Anchoring Screws
• Ceramic Fiber Logs / Refractory Logs • Rock wool
• Grate Assembly • On/Off Log Switch Assembly
The following options may be used with the Millivolt controlled heater. These options are not packaged with the log
set.
• Hand Held Remote with Receiver • Wall Thermostat with 15' Wire
• Wall Switch with 15' Wire • Hand held Thermostat Remote with Receiver
• Cast Iron Grate and Andirons • Riser Kit
Gloves are recommended when
handling ceramic fi ber logs to prevent
skin irritation from loose fi bers. Logs
are fragile — handle with care.
CAUTION
Carefully inspect the contents for shipping damage. If any parts are missing or damaged, immediately inform the dealer
from whom you purchased the appliance. Do not attempt to install any part of the appliance unless you have all parts
in good condition.
WHAT YOU WILL NEED FOR INSTALLATION:
You should have the following items available before proceeding with installation:
• External regulator (for propane/LPG and 1/2 lb. natural gas systems only)
• Piping which complies with local codes • Sediment trap (recommended)
• Screwdriver • Tee joint.
• Pipe sealant approved for use with propane/LPG (Resistant to sulfur compounds)
• Drill with 5/32 masonry bit • Pipe wrench or appropriate size crescent wrench set
• Manual shutoff valve
81D0107 5
PRODUCT FEATURES AND SPECIFICATIONS
NATURAL GAS
NOTE: An external regulator is required to reduce supply pressure to a maximum of 10 1/2" W.C. on
natural gas systems operating at higher pressure.
MILLIVOLT
Regulator Pressure Setting: 3.5" w.c.
Pilot Regulator: 3.5" w.c.
Gas Inlet Pressure: Max 10
1
/2" w.c.
Model Number Control
NB18NV Millivolt 28,000 19,000
NB24NV Millivolt 37,000 25,000
Max BTU/Hr Min BTU/Hr
Gas Rate
Min. 5" w.c.
PROPANE/LPG
Note: An external regulator is required to reduce supply pressure to a maximum of 13" w.c.
MILLIVOLT
Regulator Pressure Setting: 10" w.c
Gas Inlet Pressure: Max. 13" w.c.
Model Number Control
NB18PV Millivolt 27,000 22,000
NB24PV Millivolt 36,000 28,000
Max BTU/Hr Min BTU/Hr
Gas Rate
Min. 11" w.c.
IGNITION CONTROLS
Piezo ignitor allows ignition of the pilot without the use of matches or batteries.
Millivolt control has four (4) positions:
OFF - All gas to the gas logs is shut off at the valve.
IGN - Valve position to light/maintain a standing pilot.
ON - Valve position to turn ON/OFF log set with remote switch/thermostat.
LOW/HI - Variable position to control flame height (heat output).
PILOT/ODS
The gas log heater is fitted with a specially designed safety pilot (ODS assembly) which senses the amount of oxygen available in the room and shuts the gas log heater off if the oxygen level begins to drop below a satisfactory level. The pilot can
only be relit when adequate fresh air is available.
THERMAL GENERATOR
The millivolt gas log pilot is fitted with a Millivolt (thermopile) generator to provide power for remote activation.
6 81D0107
GENERAL INSTALLATION INFORMATION
CODES
Adhere to all local codes or, in their absence, the latest edition of THE NATIONAL FUEL GAS CODE ANSI Z223.1 or
NFPA54 which can be obtained from…
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
or
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
ADEQUATE COMBUSTION AND VENTILATION AIR
This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for
adequate combustion and ventilation air.
The National Fuel Gas Code, (ANSI Z223.1/NFPA 54), defines a confined space as a space whose volume is less than 50
cubic feet per 1,000 BTU per hour (4.8 m
unconfined space is defined as a space whose volume is not less than 50 cubic feet per 1,000 BTU per hour (4.8 m3 per kw)
of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which
the appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space.
UNUSUALLY TIGHT CONSTRUCTION IS DEFINED AS CONSTRUCTION WHERE…
a) walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of 1 perm
(6 x 10
b) weather striping has been added on openable windows and doors, and
c) caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors,
between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other
openings.
11
kg per pa-sec-m2) or less with openings gasketed or sealed;
3
per kw) of the aggregate input rating of all appliances installed in that space. An
81D0107 7
GENERAL INSTALLATION INFORMATION
Figure 1 - Example of a Large Room with 1/2 Wall Divider
Counter
Fireplace
H
W
The following formula can be used to determine the maximum heater rating per the definition of unconfined space:
BTU
/Hr =
Consider two connecting rooms with an open area between, with the following dimensions:
BTU
/Hr =
If there were a door between the two rooms the calculation would be based only on the room with the heater.
BTU
/Hr =
If the area in which the heater may be operated is smaller than that defi ned as an
unconfi ned space or if the building is of unusually tight construction, provide adequate
combustion and ventilation air by one of the methods described in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Section 5.3 or applicable local codes.
(L1 + L2) Ft x (W) Ft x (H) Ft.
50
1
1 = 15
L
(15
/2 Ft., L2 = 12 Ft., W = 12 Ft., H = 8 Ft.
1
/2 + 12) x (12) x (8)
50
1
/2) x (12) x (8)
(15
50
x 1000
x 1000 = 52800
x 1000 = 29760
BTU
BTU
BTU
/Hr
/Hr
/Hr
WARNING
8 81D0107
FIREPLACE AND HEARTH DIMENSIONS
This appliance is for installation only in a solid-fuel burning masonry or UL127 factorybuilt fi replace, vent free appliance, or in listed ventless fi rebox enclosure. It has been
design certifi ed for these installations.
Exception: DO NOT install this appliance in a factory-built fi replace that includes
instructions stating it has not been tested or should not be used with unvented gas
WARNING
logs.
Use manufacturer's installation and clearance requirements as defi ned in their manual.
The NB Series unvented room heater is approved for installation into the following unvented fireplaces:
GCUF Series Fireboxes Magnum36/42, Lo-Rider36 or BUF
The NB Series unvented room heater may also be installed into a Ventless Firebox Enclosure for Gas Fired Decorative
Type Unvented Room Heaters per IAS Requirement No. 2-97 ANSI Z21.91-2001 (typically referred to as a "Universal
Firebox"), as long as firebox hearth dimensions meet the minimum hearth dimensions shown below.
Model
NB18 with BO18(R,F) 26" 13" 18" 17"
NB24 with BO24(R,F) 29" 13" 221/ 4" 17"
NB24 with BO30(R,F) 33" 13" 251/ 4" 17"
Without front grate installed “B” will be 121/ 2.
A
B
CD
C
D
A
B
Figure 2 - Hearth Minimum Dimension
81D0107 9
PLACEMENT IN A FIREPLACE WITH A RESTRICTIVE BARRIER
IMPORTANT INFORMATION FOR THE INSTALLATION OF THIS GAS LOG SET
The following are guidelines for placing a gas log set in a fireplace that has a restrictive barrier along the bottom front opening of the fireplace. Some examples of barriers are glass/screen door frames and sunken/recessed fireplaces.
Height of Restriction (X) Minimum Depth of Fireplace/Firebox
No restriction 13"
1
0 to 1
From 1
Greater than 3" ANY BARRIER GREATER THAN THREE INCHES (3") PLACED IN FRONT OF
/2" 16"
1
/2" to 3" 16"
Glass door frames
with adjustable
louvers should have
the louvers fully
open while the unit is
in operation.
THE GAS LOG SET IS NOT RECOMMENDED BY THE MANUFACTURER.
The log set should be
placed against or as near
as possible to the rear wall
of the fi replace/fi rebox.
Height of restrictive barrier
caused by glass door frames,
recessed fi replaces, etc. from
the base or bottom surface of the
unit. (See Table).
Figure 3 - Reference Drawing of a Natural Flame Log Set in an Enclosure
X
Depth of fi replace/fi rebox.
(See Table).
Barriers such as the bottom of a glass door frame placed in front of a gas log set can
change the air fl ow characteristics of the fi replace which in turn can cause the unit to
overheat and malfunction.
WARNING
NOTE: Non combustible material such as refractory brick may be used to line the fl oor of the fi replace
in order to raise the height of the gas log set in relation to a restrictive barrier. If the unit is raised, the
minimum height dimension listed in the homeowner’s manual must not be exceeded.
NOTE: If the log set is equipped with a remote receiver, a restrictive barrier may reduce the battery life by
increasing the ambient temperature inside the fi replace. Placement of the receiver outside of the fi replace
will extend the battery life.
10 81D0107
CLEARANCES AND HEIGHT REQUIREMENTS
The dimensions shown in Figures 4 through 12 and defi ned in the fi replace manufacturer's
instructions are minimum clearances to maintain when installing this heater. Left and
right clearances are determined when facing the front of the heater.
When heater is installed into a ventless fi rebox, minimum clearances, as specifi ed by
the ventless fi rebox manufacturer, must be met.
WARNING
Follow these instructions carefully to ensure safe installation. Failure to follow
instructions exactly can create a fi re hazard.
Sidewall and ceiling clearances: The sides of the fireplace opening must be at least 16" from any combustible wall.
The ceiling must be at least 42" from the top of the fireplace opening.
42"
16"
Figure 4 - Sidewall and Ceiling Clearances
81D0107 11
e
CLEARANCES and HEIGHT REQUIREMENTS
Heat resistant material (minimum requirements) with no wooden mantel or other combustible projection:
To install the gas logs into a fireplace with no wooden mantel, shelf or other combustible projection above the fireplace
opening, measure the heat resistant material height, per Figure 5, then see TABLE A.
Heat resistant materials such as slate and marble must be at least 1/2” thick. Sheet metal should not be installed onto
combustible material.
IMPORTANT: If you cannot meet these minimum clearances you must operate the heater with chimney flue damper open.
Refer to “Installing Vented Applications” found on page 18.
Heat
Resistant
Material
Measur
this
distance
Heater in
Fireplace or
Firebox
Figure 5 - Measuring Heat Resistant Material
HEAT RESISTANT
MATERIAL
MEASUREMENT
12" or more Hood not required. Hood not required.
8" to less than 12" Hood not required. Extend heat resistant material
Less than 8" Extend heat resistant material
and 8” AND install hood. See
Figure 5.
REQUIREMENTS FOR SAFE INSTALLATION
NB18 NB24
to 12" OR install hood. See
Figure 5.
Extend heat resistant material
to 8" AND install hood. See
Figure 5. OR, extend heat
resistant material to a height of
at least 12".
TABLE A - Heat Resistant Material Requirements with no Mantel or Combustible Projection
12 81D0107
n
CLEARANCES and HEIGHT REQUIREMENTS
Heat resistant material (minimum requirements) with wooden mantel or other combustible projection:
To install the heater with a wooden mantel, shelf or other combustible projection above, first measure the heat resistant material shown in Figure 6, then refer to Table B.
8" or More of
Heat Resista
Hood
Heater in
Fireplace or
Firebox
Material
Figure 6 - Measuring Heat Resistant Material for Mantel
REQUIREMENTS FOR SAFE INSTALLATION WITH WOODEN MANTEL,
HEAT RESISTANT
MATERIAL
MEASUREMENT
12" or more Hood not required. Observe profi les (side
elevations) shown in Figure 7, page 14.
8" to less than 12" Install hood and observe profi les showin in
Figure 8, page 14, OR extend heat resistant material to at least 12” and observe
profi les shown in Figure 7, page 14.
Less than 8" Extend heat resistant material to at least
8", install hood and observe profi les shown
in Figure 8, page 14; OR extend heat resistant material to at least 12" and observe
profi les shown in Figure 7, page 14.
TABLE B - Heat Resistant Material Heights and Mantel Location
SHELF OR OTHER COMBUSTIBLE PROJECTION
NB18 NB24
Hood not required. Observe profi le (side
elevations) shown in Figure 9, page 15
Install hood and observe profi les shown in
Figure 8, page 14; OR extend heat resistant
material to at least 12" and observe profi les
shown in Figure 9, page 15.
Extend heat resistant material to at least 8",
install hood and observe profi les shown in
Figure 8, page 14, OR extend heat resistant
material to at least 12" and observe profi les
shown in Figure 9, page 15.
81D0107 13
CLEARANCES AND HEIGHT REQUIREMENTS
10"
8"
6"
1
2
/2"
Heat
Resistant
Material
8" 14" 201/2"245/8" 28"
Heater in
Fireplace or
Firebox
Example: A mantel may project from the wall a maximum of 2
mum of 14" above the opening, and a maximum of 6" at a minimum
of 201/2" above the opening.
1
/2" at a mini-
Heat
Resistant
Material
Figure 7 - Minimum Mantel Clearance with No Hood -NB18
12"
10"
8"
6"
1
/2"
2
8" 141/2"185/8"221/2" 26"
Hood
Heater in
Fireplace or
Firebox
Example: A mantel may project from the wall a maximum of 2
minimum of 8" above the opening, and a maximum of 6" at a minimum of 141/2" above the opening.
1
/2" at a
Figure 8 - Minimum Mantel Clearance with Hood - All Models
14 81D0107
Heat
Resistant
Material
10" or less
12" min. 28"
Heater in
Fireplace or
Firebox
CLEARANCES AND HEIGHT REQUIREMENTS
Example: The bottom of the mantel may project from the wall a maxi-
mum of 10" at a minimum of 28" above the opening.
Figure 9 - Minimum Mantel Clearance with No Hood — NB24
7"
6"
Figure 10 is an example of an unsafe mantel installation.
This mantel projects 4" at 8" above the opening, exceeding the
maximum acceptable distance of 21/2" The mantel also projects 7" at 141/2" above the opening, exceeding the maximum
acceptable distance of 6".
If your mantel profile is unsafe, you may either:
• Raise the mantel to an acceptable height
OR
4"
21/2"
8"
14
1
/2"
• Remove the mantel
Figure 10 - Minimum Mantel Clearance with Hood - NB24
(Example of Unsafe Installation)
81D0107 15
FLOOR CLEARANCE
The gas log heater must be installed at least 13/8" above any combustible flooring material, such as carpeting or tile, which
is closer than 14" to the base of the fireplace. The minimum distance must be maintained from the top surface of carpeting,
tile, etc. See Figure 11.
OR
The gas log heater may be installed nearer to the floor if a minimum of 14" of noncombustible material such as slate or marble
is installed between the base of the fireplace and the combustible flooring. See Figure 12.
Heater in
Fireplace or
Firebox
Figure 11 - Minimum Clearance above Combustible Flooring
This Distance
May Now Be
Less than 13/8"
Combustible
Material
13/8" Minimum
Heater in
Fireplace or
Firebox
Combustible
Material
14" Minimum
Figure 12 - Minimum Clearance above Combustible Flooring with
Noncombustible Material Installed at Base of Fireplace
16 81D0107
FIREPLACE PREPARATION
BEFORE FULLY INSTALLING THE UNIT:
• Turn OFF the gas supply to the fireplace or firebox.
• Seal any fresh air vents and/or ash clean-out doors located on the floor or wall of the fireplace. If left unsealed, drafting
may cause pilot outage or sooting. Use a heat resistant sealant. Do not seal the chimney flue damper.
Before installing in a solid fuel burning
fi replace, The chimney fl ue and fi rebox must
be cleaned of soot, creosote, ashes and loose
paint by a qualifi ed chimney cleaner.
WARNING
INSTALLING VENTED APPLICATIONS
Manual and Millivolt controlled gas logs may be installed as a vented decorative log set in compliance with ANSI Z21.60
and National Fuel Gas Code, Section 6.6. Since, the gas logs are operated with the damper open, non-combustible mate-
rial and minimum mantel requirements do not apply.
This appliance is for installation only in a solid fuel burning fi replace (masonry fi replace
or manufactured fi replace) with a working fl ue and constructed of noncombustible
material.
Exception: DO NOT install this appliance in a factory-built fi replace that includes
instructions stating that it has not been tested or should not be used with unvented
WARNING
gas logs. This log set may be installed as a vented log set.
BEFORE INSTALLING THE APPLIANCE:
• Turn off gas supply to fireplace or firebox.
• Have the fireplace floor and chimney professionally cleaned to remove ashes, soot, creosote or other obstructions. Have
this cleaning performed annually after installation.
• Seal any fresh air vents or ash clean-out doors located on floor or wall of fireplace. If not, drafting may cause pilot
outage or sooting. Use a heat-resistant sealant.
Install and operate the appliance as directed in this
manual.
DAMPER STOP INSTALLATION:
A damper stop must be provided with the unit. Contact
your dealer to obtain one. The damper stop must be
installed as shown in Figure 13 to prevent full closure
of the fireplace damper blade and provide a minimum
29 square inch flue opening.
Figure 13 - Damper Stop Installation.
Damper Stop
Damper
The fi replace and gas logs function as a system. If the fi replace is spilling into the room
(check with a match or a smoke stick), reposition the damper clamp until a positive
draft is obtained by opening the damper. If negative pressure in home prevents having
a positive draft, contact your dealer for assistance.
WARNING
81D0107 17
INSTALLING VENTED APPLICATIONS
PLACING AND SECURING APPLIANCE
You must secure the gas log heater to the fi replace fl oor. If not, the entire unit may move
when you adjust the controls. Movement of unit may cause shifting of the gas logs which
leads to sooting and improper burning. Grate movement could cause a gas leak.
Special care is required if you are installing the unit into a sunken fi replace. Y ou must raise
the fi replace fl oor to allow access to gas log controls. This will insure adequate air fl ow
and guard against sooting. Raise the fi replace fl oor using noncombustible materials, as
WARNING
described in Placement in a Fireplace with Restrictive Barrier on page 10.
ASSEMBLY PROCEDURE:
1. Center the gas log unit on the fireplace or firebox. Make certain the front of the burner sits inside the front edge of the
fireplace or firebox.
2. Anchor holes are located on the right and left sides of the unit. After centering the burner correctly, mark the hole positions on the fireplace/firebox floor. Drill two (2)
3. Anchor the burner to the fireplace/firebox floor using the screws provided. See Figure 14.
Proper installation of the grate is essential to prevent any movement of the gas logs and controls during operation.
Screw
5
/32" diameter holes approximately 11/2" deep.
Screw
Anchor Hole
Figure 14 - Securing Heater to Floor of Fireplace/Firebox
18 81D0107
CONNECTING THE GAS
NOTICE: A qualifi ed gas appliance installer must connect the heater to the gas supply. Consult all local
codes.
Use new black iron or steel pipe. Internally tinned copper or copper tubing can be used
per National Fuel Code, section 2.6.3, providing gas meets hydrogen sulfi de limits, and
where permitted by local codes. Gas piping system must be sized to provide minimum
inlet pressure (Listed on Data Plate) at the maximum fl ow rate (BTU/Hr). Undue pressure
loss will occur if the pipe is too small.
A manual shutoff valve must be installed upstream of the appliance. Union tee and
CAUTION
plugged
See Figure 15
1
/8" NPT pressure tapping point should be installed upstream of the appliance.
To Heater
Valve
Stainless
Flexible Tube
Manual Shutoff
IMPORTANT: Hold heater valve firmly with a wrench to prevent movement when connecting to inlet pipe.
Pipe Coupling
Pipe
Valve
Figure 15 - Gas Connection
Locations that the Pressure
Tapping Point May Be Installed
Gas Supply
Inlet
CHECK GAS TYPE: The gas supply must be the same as stated on the heater’s rating plate.
If the gas supply is different, DO NOT INSTALL THE HEATER. Contact your dealer for the
correct model.
CAUTION
Always use an external regulator for all propane/LPG heaters and high pressure one to two-pound systems only, to
reduce the supply tank pressure to a maximum of 13" w.c. This is in addition to the internal regulator in the heater valve.
81D0107 19
CHECKING GAS PRESSURE
The heater gas inlet connection is a 3/8" NPT at the valve. On all
Connecting directly to an
unregulated propane/LPG tank
can cause an explosion.
WARNING
Test all gas joints from the gas meter to the heater valve for leaks using a gas analyzer or soap and water solution after com-
pleting connection. DO NOT USE AN OPEN FLAME.
Check the gas pressure with the appliance burning and the control set to HIGH.
MILLIVOLT VALVE CONTROL (Figure 16)
The valve regulator controls the burner pressure which
should be checked at the pressure test point.
Turn captured screw counter clockwise two or three
turns and then place tubing to pressure gauge over test
point (Use test point “OUT” closest to control knob).
After taking pressure reading, be sure and turn captured
screw clockwise firmly to re-seal. Do not over torque.
Check for gas leaks.
control type units, the inlet connection is on the right side of unit.
To connect from the opposite side, route the pipe around the back
portion of the unit.
When tightening up the joint to the valve, hold the valve securely
to prevent movement.
Test Port “OUT”
Figure 16 - Pressure Test Point Location
Millivolt Control
20 81D0107
ELECTRICAL WIRING (MILLIVOLT)
The Millivolt valve is a self-powered combination gas control THAT DOES NOT REQUIRE 110 VAC TO OPERATE.
Label all wires prior to disconnection when servicing controls.
Wiring errors can cause improper and dangerous operation. V erify
proper operation after servicing.
CAUTION
ODS
Pilot
ODS
On/Off
Switch or
Optional
Wall
Switch,
Remote or
T-Stat
TH = 3
TP = 1
TP/TH = 2
Pilot
Millivolt
Valve
Log Switch
Figure 17 - Wiring Diagram
Note: Log switch wires are not factory connected.
Connect log switch wires to the TH/TP and TH valve terminals as shown.
CONNECTING OPTIONAL WALL SWITCH OR THERMOSTAT
1. Use 18 awg, two-wire cable, 15 feet maximum length.
2. At one end of the cable, connect both wires to the wall switch or thermostat. At the other end, connect one wire to
TP/TH and one wire to TH, or connect the wall switch/thermostat to the two male (0.25") terminals on the left side of
the unit. The color of the wires does not matter.
81D0107 21
ELECTRICAL WIRING (MILLIVOLT)
CONNECTING REMOTE RECEIVER
1. Set remote receiver. See instructions included in receiver kit.
2. Connect the two (2) 1/4" female connectors to the TP/TH and TH terminals on the control valve.
Remote
Wire
Connectors
Do not let wires
touch grate or
burner.
NOTICE
Remote
Wire
Connectors
Valve
Remote
Receiver
Figure 18 - Installing Remote Receiver
Note: Heat reduces battery life. You can protect the receiver and extend battery life by mounting receiver
in wall or other location outside the fi replace.
CHECKING SYSTEM OPERATION
The Millivolt system and individual components may be checked with a Millivolt
meter having a 0-1000 mV range. Conduct each check shown in chart below by
connection meter test leads to terminals
CHECK
TEST TO TEST
A
B
COMPLETE
SYSTEM
THERMOPILE
OUTPUT
CONNECT
METER LEADS
TO TERMINALS
2 & 3 CLOSED MINIMUM 175
1 & 2 OPEN MINIMUM 500
SWITCH OR
THERMOSTAT
CONTACTS
SHOULD BE
METER
READING
as indicated.
A. COMPLETE MILLIVOLT SYSTEM CHECK
(“A” Reading - Thermostat contacts CLOSED - Control Knob “ON” - Main burner should turn ON)
a. If the reading is more than 175 Millivolts and the automatic valve still does not come on, replace the control.
b. If the closed circuit reading (“A” reading) is less than 175 Millivolts, determine cause for low reading, proceed to
Section B below.
B. Thermopile Output Reading Check
(“B” Reading - Thermostat contacts OPEN - Main burner OFF)
1. Check gas pressure to the unit. If gas pressure is within minimum and maximum on data plate, then check pilot
voltage, 500 Millivolts minimum. If the minimum Millivolt reading is not obtainable, replace pilot.
22 81D0107
LOG PLACEMENT
Before you begin — This unit is supplied with seven (7) ceramic fiber logs. Do not handle these logs with your bare
hands. Always wear gloves to prevent skin irritation from ceramic fibers. After handling the logs, wash your hands
gently with soap and water to remove any traces of fibers.
The positioning of the logs is critical to the safe and clean operation of this heater. Sooting and
other problems may result if the logs are not properly and fi rmly positioned in the appliance.
Never add additional logs or embellishments such as pine cones, vermiculite or rock wool to
the heater. Only use the logs and 2G-R W rock wool (for NB18), or 3G-R W rock wool (for NB24)
supplied with the unit.
WARNING
Failure to position the parts in accordance with diagrams below or to use only parts specifi cally
approved for this heater may result in property damage or personal injury.
PLACING ROCK WOOL
Before installing logs, place rockwool in
dime size pieces evenly over small burner
ports starting in the rear of the burner going
towards the front. Avoid placing rock wool
on slots on each side of rear burner and on
large yellow flame ports on front of burner.
Wash hands after placing rock wool. Itching
may occur.
• Use only rock wool
provided with log set.
Dime-Size
Rock Wool
• Do not add additional
rock wool.
WARNING
Figure 19 - Placing Rock Wool
NOTE: Installation instructions are the
same for 18", 24", and 30" log sets. Pictures used in this manual illustrate the 24" set. Some variation may exist
between the images and the set included with this manual.
INSTALLING 18", 24" AND 30" (F,R) BERKLEY OAK LOGS ON NATURAL BLAZE BURNER
1. Place the #1 log (the “chunk”) on the grate bar right side of the burner adjacent to the controls. See Figure 20
2. Place front right log (#2) on right pin located on burner and right grate bar. Then, slide the #1 log foward so that it is
tight against the #2 log. See Figure 21
3. Place right rear log (#3) on pin located on rear support bracket and rest left side of log on front right log. See Figure
22
#1
#2
Figure 20 - Placing Log #1
81D0107 23
Figure 21 - Placing Log #2
LOG PLACEMENT
4. Place left rear log (#4) on pin located on rear support bracket on left side. See Figure 23.
5. Place left front log (#5) on left pin located on burner and left grate bar. Rest top right portion of log on right front log.
See Figure 24
6. Place log #6 on unit by placing grooved portion of log onto left grate bar with bark facing outward. Rest front part of
log in groove on left front log. See Figure 25
7. Place left top log (#7) on left rear log (#4) and left front log (#5) using locating grooves on bottom of #7 and locating
blocks on log #4 and #5. See Figure 26
8. Place right top log (#8) onto right rear (#3) and right front (#2) logs using locator on bottom of right top log. See
Figure 27
#5
#3
Figure 22 - Placing Log #3
#4
Figure 23 - Placing Log #4
#6
Figure 24 - Placing Log #5
#7
Figure 26 - Placing Log #7
24 81D0107
Figure 25 - Placing Log #6
#8
Figure 27 - Placing Log #8
EMBER, GRATE, AND ROCK INSTALLATION
PLACING FLICKERING EMBERS
Place flickering bright embers (FBE-.1G) after placing logs on burner.
Pull apart into small strands and place on top of existing rock wool
in front of and between front logs where they can be seen. Try to
avoid stacking these embers on top of each other. Use smaller,
stringier strands for maximum effect. Use as much as needed until
desired effect is achieved.
Figure 28 - Placing embers
CAST IRON GRATE INSTALLATION
Install the cast iron grate by inserting screw head on back of right side of grate into the “I” shaped slot on front right corner
of unit. After moving screw head to the bottom of the “I” slot, insert the screw head on the back of the left side of grate into
the keyhole slot on the left front of unit. See Figure 29.
A.
Key
Hole Slot
Cast Iron
Grate
Figure 29 (a&b) - Installing Cast Iron Grate
PLACING THE DECORATIVE ROCK
Cast Iron
Grate
I Slot
B.
DO NOT sprinkle volcanic rock on the logs, around the pilot, or on or near burners. This
may cause sooting. Place volcanic rock only on the fl oor of the fi replace.
During initial operation of the new heater, new burning logs and/or rock wool will give off
a paper burning smell and orange fl ames will be present. Simply open the windows for a
CAUTION
few hours to vent the odor.
81D0107 25
FLAME APPEARANCE
Flames from the pilot and burner should be visually checked as soon as the heater is installed. In addition,
periodically check the flames visually during operation.
CHECKING THE PILOT FLAME
The pilot fl ame must always be present when the heater is in operation. It should just touch the top of the ther-
mocouple tip for natural. See Figure 30 for correct pilot flame.
If the pilot flame does not touch the thermocouple, then the main burner cannot function reliably. See Figure 31 for incorrect shape of pilot flame.
MILLIVOLT CONTROL AND THERMOSTAT CONTROL
Thermocouple
for Natural
Thermocouple
for LP
Figure 30 - Correct Appearance of Pilot Flame
Thermocouple
for Natural
Thermocouple
for LP
Figure 31 - Incorrect Appearance of Pilot Flame
26 81D0107
CHECKING THE BURNER FLAME
In normal operation at full rate after 15 minutes, the following fl ame appearances should be observed:
Figure 32 - Correct Appearance of Rear Flames of Berkley Oak
Burner will have a random pattern of yellow flames as shown in Figure 32. There should be glowing embers on the front
burner. Note: The front fl ames and embers will be an opaque orange color during the burn off time.
OPERATING INSTRUCTIONS
Avoid any drafts that alter burner fl ame patterns. Do not allow fans to blow directly into the fireplace. Do not place
a blower inside the burn area of the firebox. Ceiling fans may create drafts that alter flame patterns. Sooting and improper
burning will result.
During manufacturing, fabricating and shipping, various components of this appliance are treated with certain oils, films or
bonding agents. These chemicals are not harmful, but may produce annoying smoke and smells as they are burned off during
the initial operation of the appliance, possibly causing headaches or eye or lung irritation. This is a normal and temporary
occurrence.
The initial break-in operation should last four hours with the burner at the highest setting. Provide maximum ventilation by
opening windows or doors to allow odors to dissipate. Any odors remaining after this initial break-in will be slight and will
disappear with continued use.
This appliance must not be used with glass doors in the closed position. This can lead to pilot outages and severe sooting
outside the fireplace. See Figure 3, page 10.
81D0107 27
OPERATING INSTRUCTIONS
FOR YOUR SAFETY READ BEFORE LIGHTING
If you do not follow these instruction
exactly , a fi re or explosion may result
causing property damage, personal
injury or loss of life.
WARNING
A. This appliance is equipped with a piezo ignition device which lights the pilot. If piezo is not working properly
see Match Lighting Instructions, page 30.
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 attempt to 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.
C. Use only your hand to push in, or turn the gas control knob. Never use tools. If the knob will not push in or
turn by hand, don't try to repair it. Call a qualified service technician. Force or attempted repair may result in
a fire or explosion.
D. Do not use this appliance if any part of it 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 that has been under
water.
Piezo
Ignitor
Switch
Figure 33 - Location of Piezo Ignitor, Control Knobs and Switch
Pilot
Hi/Lo Knob
On/Off/Pilot
Knob
28 81D0107
OPERATING INSTRUCTIONS
Millivolt CONTROL LIGHTING INSTRUCTIONS
1. STOP! Read the safety information label.
2. Make sure the manual shutoff valve is fully open.
3. This gas log set is equipped with an ignition device (piezo) which automatically lights the pilot. If piezo
ignitor does not light the pilot, refer to instructions for Match Lighting Instructions, page 30.
4. Turn gas control knob clockwise to the OFF position and turn ON/OFF switch to OFF position.
5. Wait (5) minutes to clear out any gas. Then smell for gas, including near the floor. If you smell gas, STOP!
Follow the instructions under What To Do If You Smell Gas, page 28.
6. From OFF position, turn the gas control knob counterclockwise
to IGN position. Push in
control knob for 5 seconds. NOTE: If you are running the heater for the fi rst time, it may be
necessary to press in the control knob for 30 seconds or longer to allow air to bleed out
of the gas piping.
7. With the control knob pushed in, push in and release the piezo ignitor button to light the pilot.
8. Continue pushing the control knob in for a further 60 seconds to prevent the flame detector from shutting
off the gas while the probe is warming up. Release the control knob.
9. Turn gas control knob counterclockwise
to the ON position.
10. After the pilot has been lit for one minute, the burners can be turned on. Turn the ON/OFF switch to ON
position.
11. If the gas logs will not operate, follow the instructions To Turn Off Gas To Heater below and call your
service technician or gas supplier.
Piezo
Ignitor
Pilot
Hi/Lo Knob
On/Off/Pilot
Knob
Figure 34 - Pilot
Figure 35 - Controls
Switch
TO TURN OFF GAS TO HEATER
1. Turn control knob clockwise to OFF position to completely shut off the heater.
2. If applicable: Turn ON/OFF switch to OFF position and/or set thermostat (if present) to lowest setting.
3. If applicable: Turn off all electric power to the heater.
81D0107 29
OPERATING INSTRUCTIONS AND CLEANING AND SERVICING
MATCH LIGHTING INSTRUCTIONS
1. Remove any items necessary for easy access to the pilot (for example: logs, screens, etc.).
2. Follow appropriate lighting instructions found previously. Instead of pushing and releasing the piezo
button, light a match and hold the flame to the end of the pilot and ignite the pilot.
3. After control knob has been released and pilot stays lit, reinstall any items that were removed for pilot
access.
4. Call a qualified service technician for repair or replacement of the piezo ignitor.
CLEANING AND SERVICING
Annual inspection and cleaning by your dealer or qualifi ed service technician is recommended to prevent
malfunction and/or sooting.
T urn off heater and allow to cool before
cleaning. Disconnect electrical power
before cleaning or servicing.
WARNING
Remove logs, handling carefully by holding gently at each end. Gloves are recommended to prevent skin irritation from
ceramic fibers. If skin becomes irritated, wash gently with soap and water. Refer to manual for correct log placement.
PERIODIC CLEANING - Refer to parts diagram for location of items discussed below.
• Do not use cleaning fluid to clean logs or any part of heater.
• Brush logs with soft bristle brush or vacuum with brush attachment.
• Vacuum loose particles and dust from the front and rear burner, control and piezo covers and grate weldment.
• Inspect and clean burner air intake holes. Remove lint or particles with vacuum, brush, or pipe cleaners.
Failure to keep air intake holes clean will result in sooting and poor combustion.
• External case should be dusted and wiped with a wet soapy cloth.
ANNUAL CLEANING/INSPECTION - Refer to parts diagram for location of items discussed below.
• Inspect and clean burner air intake holes. Remove lint or particles with vacuum, brush or pipe cleaners.
Failure to keep air intake holes clean will result in sooting and poor combustion.
• Inspect and clean all burner ports.
• Inspect ODS pilot for operation and accumulation of lint at air intake holes.
• Verify flame pattern and log placement for proper operation.
• Verify smooth and responsive ignition of main burner and rear burner.
• Replace battery in remote control device.
30 81D0107
Turn appliance OFF and allow to cool before
servicing. Only a qualifi ed service person
should service and repair the heater.
WARNING
WARNING
Note: All troubleshooting items are listed in order of operation.
OBSERVED PROBLEM POSSIBLE CAUSE REMEDY
When ignitor button is
pressed, there is no spark at
ODS/pilot.
1. Ignitor electrode positioned wrong. 1 Replace ignitor.
2. Ignitor electrode is broken. 2. Replace ignitor.
TROUBLESHOOTING
Appliance produces
unwanted odors.
Appliance shuts off during
use.
Gas odor even when control
knob is in OFF position.
When ignitor button is
pressed, there is spark at
ODS pilot, but no ignition.
3. Ignitor electrode not connected to ignitor
cable.
4. Ignitor cable pinched or wet. Keep ignitor
cable dry.
5. Broken ignitor cable. 5. Replace ignitor cable.
6. Bad piezo ignitor. 6. Replace piezo ignitor.
1. Appliance burning vapors from paint, hair
spray, glues, etc.
2. Gas leak. 2. Locate and correct all leaks.
3. Initial burn off
1. Not enough fresh air is available for ODS/
pilot to operate.
2. Low line pressure. 2. Contact local gas company.
3. ODS/pilot is partially clogged. 3. Clean ODS/pilot.
4. Defective Thermopile. 4. Check wire connections. Check output should
5. Restrictions in incoming air flow. 5. Check for bottom riser on glass door, sunken
1. Gas leak. 1. Locate and correct all leaks.
2. Control valve defective. 2. Replace control valve.
1. Gas supply turned off or manual shutoff
valve closed.
2. Control knob not in PILOT position. 2. Turn control knob to PILOT position.
3. Control knob not pressed in while in PILOT
position.
4. Air in gas lines when installed. 4. Continue holding down control knob. Repeat
5. ODS/pilot is clogged. 5. Replace ODS/pilot assembly or get it serviced.
6. Gas regulator setting is not correct. 6. Check incoming pressure. Replace gas
3. Reconnect ignitor cable.
4. Free ignitor cable if pinched by any metal or
tubing.
1. Ventilate room. Stop using odor causing
products while heater is running.
3. Ventilate room and turn unit on high until odor
is gone. Odor should be gone after 6 hours of
continuous use.
1. Open window and/or door for ventilation.
be 500 Millivolts across TH/TP and TP Terminals
with ON/OFF switches off.
fireplace, excessive lava rock/cinders densely
packed against grate.
1. Turn on gas supply or open manual shutoff
valve.
3. Press in control knob while in PILOT position.
igniting operation until air is removed.
regulator.
81D0107 31
TROUBLESHOOTING
If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and
the heater may backfi re when lit. If the gas quality or pressure is low, contact your local
gas supplier immediately.
WARNING
OBSERVED PROBLEM POSSIBLE CAUSE REMEDY
ODS/pilot lights, but flame
goes out when control knob
is released.
Burner does not light after
ODS/pilot is lit.
Burner backfires during
combustion
Slight smoke or odor during
initial operation.
Logs appear to smoke after
initial operation.
Heater produces a whistling
noise when burner is lit.
No gas to pilot. 1. LP-regulator shut down due to inlet pressure
1. Control knob not fully pressed in. 1. Press in control knob fully.
2. Control knob not pressed in long enough. 2. After ODS/pilot lights, keep control knob
pressed in for 30 seconds.
3. Manual shutoff valve not fully open. 3. Fully open manual shutoff valve.
4. Thermocouple connection loose at control
valve.
5. Pilot flame not touching thermocouple,
which allows thermocouple to cool, causing
pilot flame to go out. This problem could be
caused by either low gas pressure, or a dirty
or partially clogged ODS/pilot.
6. Thermocouple damaged. 6. Replace thermocouple.
7. Control valve damaged. 7. Replace control valve.
1. Burner orifice is clogged. 1. Burner orifice is clogged.
2. Burner orifice diameter is too small. 2. Burner orifice diameter is too small.
3. Inlet gas pressure is too low. 3. Inlet gas pressure is too low.
1. Manifold pressure is too low. 1. Contact local gas company.
2. Burner orifice is clogged. 2. Clean burner or replace burner orifice.
1. Burner orifice is clogged or damaged. 1. Clean burner or replace burner orifice.
2. Burner is damaged. 2. Replace burner.
3. Gas regulator defective. 3. Replace gas regulator.
1. Vapors from paint or curing process of logs. 1. Problem will stop after a few hours of
1. Turning control knob to HIGH position
when burner is cold.
2. Air in gas line. 2. Operate burner until air is removed from line.
3. Dirty or partially clogged burner orifices. 3. Clean burner or replace burner orifice.
too high.
4. Hand tighten thermocouple connection until
snug, then tighten 1/4 turn more.
5. Contact local gas company.
operation. Run the heater with the damper
open if you have one, or open a window for
the first few hours.
2. Log heater is intended to be smokeless. Turn
OFF heater and call qualified service person.
1. Turn control knob to LOW position and let
warm up for a minute.
Have gas line checked by local gas company.
1. Verify LP tank regulator is installed and set at
11" to 13" w.c.
2. Replace regulator on heater.
32 81D0107
BURNER ASSEMBL Y
3
REPLACEMENT PARTS
Failure to position the parts in
accordance with these diagrams or
failure to use only parts specifi cally
approved with this appliance may
result in property damage or personal
WARNING
injury.
5
2
1
4
7
7
6
81D0107 33
REPLACEMENT PARTS LIST
REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER.
BURNER ASSEMBL Y
NB18 NB24
Item Qty
1 Piezo Ignitor 1 14D0503 14D0503 14D0503 14D0503
2 Piezo Wire 1 00K0632 00K0632 00K0632 00K0632
3 Burner 1 81D2004 81D2010 81D0515 81D0504
4 Control Valve 1 14D0467 14D0468 14D0467 14D0468
5 ODS Pilot Assembly 1 14D0473 14D0477 14D0473 14D0477
6 On/Off Switch 1 32D0232 32D0232 32D0232 32D0232
7 Pilot Regulator 1 14D0469 — 14D0469 —
ACCESSORIES SOLD SEPARATELY
Natural Propane Natural
Propane
Description Part Number
Flex Connector Flexcon 30
Wall Switch and Wire MVWS
Wall Thermostat Kit WT
On/Off Remote RCB, RCMT, WMTD
Thermostat Remote RCST, RCT, WWTD
Remote Receiver Cover Ember RRCE
Remote Receiver Cover Metal RRCM
On/Off Touch Light Remote TLM
Remote Touch Light T-stat TL T
Log Switch with Wires ELSK
Universal Andirons UAI9
2G-RW (NB18)
Rock Wool Bag
Flickering Bright Embers FBE-.1G
3G-RW (NB24)
34 81D0107
REPLACEMENT PARTS LIST
REPLACEMENT PARTS ARE AVAILABLE THROUGH YOUR RETAILER.
BERKLEY OAK REFRACTORY LOGS
Item Description Qty BO18-R BO18-F BO24-R BO24-F BO30-R BO30-F
1 Ember Chunk 1 81D0058 81D0082 81D0110 81D0109 81D0074 81D0098
2 Right Front Log 1 81D0059 81D0083 81D0067 81D0091 81D0075 81D0099
3 Right Rear Log 1 81D0060 81D0084 81D0068 81D0092 81D0076 81D0100
4 Left Rear Log 1 81D0061 81D0085 81D0069 81D0093 81D0077 81D0101
5 Left Front Log 1 81D0062 81D0086 81D0070 81D0094 81D0078 81D0102
6 Middle Left Log 1 81D0063 81D0087 81D0071 81D0095 81D0071 81D0095
7 Left T op Log 1 81D0064 81D0088 81D0072 81D0096 81D0072 81D0096
8 Right T op Log 1 81D0065 81D0089 81D0073 81D0097 81D0073 81D0097
7
5
6
4
3
8
2
1
(BENEATH #8)
Failure to position the parts in
accordance with these diagrams or
failure to use only parts specifi cally
approved with this appliance may
result in property damage or personal
WARNING
injury.
81D0107 35
MASSACHUSETTS RESIDENTS ONLY:
PLEASE READ AND FOLLOW THESE
SPECIAL REQUIREMENTS
NOTE REGARDING VENTED PRODUCTS
This product must be installed by a licensed plumber or gas fi tter when installed within the Commonwealth of Massachu-
setts.
Any residence with a direct vent product must have a CO detector installed in the residence.
Installation of the fi replace or vented gas log in the State of Massachusetts requires the damper to be permanently removed
or welded in the fully open position.
In addition, a naturally vented gas log may not be installed in a bedroom or bathroom in the State of Massachusetts.
Flex line installation must not exceed 36 inches and must have a T shutoff valve.
NOTE REGARDING VENT FREE PRODUCTS
This product must be installed by a licensed plumber or gas fi tter when installed within the Commonwealth of Massachu-
setts.
In addition, vent free products may not be installed in a bedroom or bathroom regardless of size or type in the State of Massachusetts.
Flex line installation must not exceed 36 inches and must have a T shutoff valve.
CARBON MONOXIDE DETECTOR REQUIREMENTS
(2) Revise 10.8.3 by adding the following additional requirements:
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in
whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side
wall exhaust vent termination is less than seven (7) feet above fi nished grade in the area of the venting, including but
not limited to decks and porches, the following requirements shall be satisfi ed:
1. INST ALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal
vented gas fueled equipment, the installing plumber or gasfi tter shall observe that a hard wired carbon monoxide
detector with an alarm and battery back-up is installed on the fl oor level where the gas equipment is to be installed.
In addition, the installing plumber or gasfi tter shall observe that a battery operated or hard wired carbon monoxide
detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side
wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services
of qualifi ed licensed professionals for the installation of hard wired carbon monoxide detectors
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic,
the hard wired carbon monoxide detector with alarm and battery back-up may be installed on the next adjacent
fl oor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation,
the owner shall have a period of thirty (30) days to comply with the above requirements; provided, however,
that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm shall be installed.
36 81D0107
SPECIAL REQUIREMENTS CONTINUED
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certifi ed.
3. SIGNAGE. A metal or plastic identifi cation plate shall be permanently mounted to the exterior of the building at
a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The sign shall read, in print size no less than one-half (1/2) inch
in size, “GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS.”
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not
approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage
installed in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled “Equipment Not Required To Be Vented” in the most current edition of
NFPA 54 as adopted by the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from
the dwelling, building or structure used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer
of Product Approved side wall horizontally vented gas equipment provides a venting system design or venting system
components with the equipment, the instructions provided by the manufacturer for installation of the equipment and the
venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the
manufacturer of a Product Approved side wall horizontally vented gas fueled equipment does not provide the parts
for venting the fl ue gases, but identifi es “special venting systems,” the following requirements shall be satisfi ed by the
manufacturer:
1. The referenced “special venting system” instructions shall be included with the appliance or equipment installation
instructions; and
2. The “special venting systems” shall be Product Approved by the Board, and the instructions for that system shall
include a parts list and detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all
venting instructions, all parts lists for venting instructions, and/or all venting design instructions shall remain with the
appliance or equipment at the completion of the installation.
81D0107 37
NOTES
38 81D0107
NOTES
81D0107 39
MONESSEN HEARTH SYSTEMS
LIMITED LIFETIME WARRANTY POLICY
LIFETIME WARRANTY
The following components are warranted for life to the original owner, subject of proof of purchase: Firebox,
Combustion Chamber, Heat Exchanger, Grate, and Stainless Steel Burners.
FIVE YEAR WARRANTY
The following components are warranted for 5 years to the original owner, subject of proof of purchase: Vent Free
Ceramic Fiber Logs and Aluminized Burners.
BASIC WARRANTY
Monessen Hearth Systems (MHS) warrants the components and materials in your gas appliance to be free from
manufacturing and material defects for a period of two years from date of installation. After installation, if any of
the components manufactured by MHS in the appliance are found to be defective in materials or workmanship,
MHS will, at its option, replace or repair the defective components at no charge to the original owner. MHS will
also pay for reasonable labor costs incurred in replacing or repairing such components for a period of two years
from the date of installation. Any products presented for warranty repair must be accompanied by a dated proof
of purchase.
This Limited Lifetime Warranty will be void if the appliance is not installed by a qualified installer in accordance
with the installation instructions. The Limited Lifetime Warranty will also be void if the appliance is not operated
and maintained according to the operating instructions supplied with the appliance, and does not extend to (1)
firebox/burner assembly damage by accident, neglect, misuse, abuse, alteration, negligence of others, including
the installation thereof by unqualified installers, (2) the costs of removal, reinstallation or transportation of
defective parts on the appliance, or (3) incidental or consequential damage. All service work must be performed
by an authorized service representative.
This warranty is expressly in lieu of other warranties, express or implied, including the warranty of merchantability
of fitness for purpose and of all other obligations or liabilities. Monessen Hearth Systems, Inc. does not
assume for it any other obligations or liability in connection with the sale or use of the appliance. In states
that do not allow limitations on how long an implied warranty lasts, or do not allow exclusion of indirect
damage, those limitations of exclusions may not apply to you. You may also have additional rights not covered
in this Limited Lifetime Warranty.
MHS reserves the right to investigate any and all claims against the Limited Lifetime Warranty and decide
upon method of settlement.
For information about this warranty, contact:
Technical Services
Monessen Hearth Systems
149 Cleveland Drive
Paris, Kentucky 40361
JULY 2008 P/N 81D0107 • Rev. 2
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