WARNING: If the information in this manual is not
followed exactly, a fire or explosion may result causing property damage, personal injury, or loss of life.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
FOR YOUR SAFETY
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• 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.
WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause
injury or property damage. Refer to this manual for correct
installation and operational
procedures. For assistance or
additional information consult
a qualified installer, service
agency, or the gas supplier.
— Installation and service
must be performed by a
qualified installer, service
agency, or the gas supplier.
— This appliance is for use
only with indicated gas type.
It is not convertible for use
with other gases, unless a
certified kit is used.
This appliance may be installed in an aftermarket* manufactured (mobile) home,
where not prohibited by state or local codes.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
Save this manual for future reference.
(B)HDV37N/P AND (B)HDV41N/P
®
DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
SAFETY
INFORMATION
WARNINGS
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
burns, fire, explosions, electrical
shock, and carbon monoxide
poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
This fireplace is a vented product. This
fireplace will not produce any gas leakage
into your home if properly installed. This
fireplace must be properly installed by a
qualified service person. The glass door
must be properly seated and sealed. If this
unit is not properly installed by a qualified
service person with glass door properly
seated and sealed, gas leakage can occur.
Carbon Monoxide Poisoning: Early signs
of carbon monoxide poisoning resemble the
flu, with headaches, dizziness, or nausea. If
you have these signs, the fireplace may not
have been installed properly. Get fresh airat once! Have fireplace inspected and serviced by a qualified service person. Some
people are more affected by carbon monoxide than others. These include pregnant
women, people with heart or lung disease or
anemia, those under the influence of alcohol,
and those at high altitudes.
Propane/LP gas and natural gas are both
odorless. An odor-making agent is added to
each of these gases. The odor helps you
detect a gas leak. However, the odor added
to these gases can fade. Gas may be present
even though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this fireplace.
WARNING: Any change to
this fireplace or its controls can
be dangerous.
1.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 unless a certified kit
is used.
2.For propane/LP fireplace, do not place
propane/LP supply tank(s) inside any
structure. Locate propane/LP supply
tank(s) outdoors. T o prevent performance
problems, do not use propane/LP fuel
tank of less than 100 lbs. capacity .
3.If you smell gas
• shut off gas supply
• do not try to light any appliance
• 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 you gas supplier,
call the fire department.
4.Never install the fireplace
• in a recreational vehicle
• where curtains, furniture, clothing, or
other flammable objects are less than
42" from the front, top, or sides of
the fireplace
• in high traffic areas
• in windy or drafty areas
5.This fireplace reaches high temperatures. Keep children and adults away
from hot surfaces to avoid burns or clothing ignition. Fireplace will remain hot
for a time after shut-down. Allow surfaces to cool before touching.
6.Carefully supervise young children
when they are in the room with fireplace.
7.Do not modify this fireplace under any
circumstances. Any parts removed for
servicing must be replaced prior to operating fireplace.
8.Turn fireplace off and let cool before
servicing, installing, or repairing. Only
a qualified service person should install, service, or repair this fireplace.
Have fireplace inspected annually by a
qualified service person.
9.You must keep control compartments,
burners, and circulating air passages
clean. More frequent cleaning may be
needed due to excessive lint and dust
from carpeting, bedding material, etc.
Turn off the gas valve and pilot light
before cleaning fireplace.
10. Have venting system inspected annually by a qualified service person. If
needed, have venting system cleaned
or repaired. See Cleaning and Mainte-nance, page 29.
11. Keep the area around your fireplace
clear of combustible materials, gasoline, and other flammable vapor and
liquids. Do not run fireplace where
these are used or stored. Do not place
items such as clothing or decorations
on or around fireplace.
12. Do not use this fireplace to cook food
or burn paper or other objects.
13. Do not use any solid fuels (wood, coal,
paper, cardboard, etc.) in this fireplace.
Use only the gas type indicated on fireplace nameplate.
14. This appliance, when installed, must be
electrically grounded in accordance
with local codes or, in the absence of
local codes, with the National Electri-
cal Code, ANS/NFPA 70, or the Canadian Electrical Code, CSA C22.1.
15. Do not obstruct the flow of combustion and ventilation air in any way . Provide adequate clearances around air
openings into the combustion chamber
along with adequate accessibility clearance for servicing and proper operation.
16. Do not install fireplace directly on carpeting, vinyl tile, or any combustible
material other than wood. The fireplace
must set on a metal or wood panel extending the full width and depth of the
fireplace.
17. Do not use fireplace if any part has been
exposed to or under water. Immediately
call a qualified service person to arrange for replacement of the unit.
18. Do not operate fireplace if any log is
broken.
19. Do not use a blower insert, heat exchanger insert, or other accessory not
approved for use with this fireplace.
20. Do not operate fireplace with glass door
removed, cracked, or broken.
2
104558
OWNER’S MANUAL
PRODUCT
IDENTIFICATION
Top Louver
Panel
Nailing
Flange
Glass Door
Assembly
Blower
Adjustment
(Optional
Installation)
ON/OFF
Switch
Piezo Ignitor
Valve
Glowing Embers
Lower Louver
Panel
Figure 1 - Vanguard Direct-Vent Fireplace BHDV Series
Top Louver
Panel
Nailing
Flange
Glass Door
Assembly
Magnetic Brass
Trim
Blower
Adjustment
(Optional
Installation)
ON/OFF
Switch
Piezo Ignitor
Valve
Lower Louver Panel
Glowing Embers
Figure 2 - Vanguard Direct-Vent Fireplace HDV Series
Vent Opening
Stand-off
Vent Opening
Stand-off
Front Burner
Log Set
Pilot Assembly
Burner
Grate Assembly
Lava Rock
Rear
Burner
Log Set
Pilot Assembly
Grate Assembly
Lava Rock
LOCAL CODES
Install and use fireplace with care. Follow
all local codes. In the absence to local codes,
use the current National Fuel Gas CodeANS Z223.1, also known as NFPA 54*
(USA) or the current CAN/CGA-B149[.1 or.2]Installation Codes (Canada).
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
PRODUCT
FEATURES
OPERATION
This direct-vent fireplace is clean burning
and vents easily through outside walls or
vertically using outside air for combustion.
Heat is generated by both realistic flames
and glowing embers. When used without
the blower accessory, the fireplace requires
no electricity making it ideal for emergency
back-up heat.
PIEZO IGNITOR
This fireplace has a piezo ignitor. This system requires no matches, batteries, or other
sources to light fireplace.
GLOSSARY OF
TERMS
Chase - A box-like enclosure to protect
venting from the elements when the venting
run is on the outside of a structure.
Where two numbers are given the top number is exclusive to the
37" Fireplace and the bottom number is exclusive to the 41" Fireplace
®
DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
PRE-INSTALLATION
PREPARATION
LOCATION AND SPACE
REQUIREMENTS
Determine the safest and most efficient location for your Vanguard direct-vent fireplace.
Make sure that rafters and wall studs are not
in the way of the venting system. Choose a
location where the heat output is not affected
by drafts, air conditioning ducts, windows or
doors. Figure 3 shows some common locations. Read all venting information in this
manual. Be aware of all restrictions and
precautions before deciding the exact location for your fireplace.
When deciding the location of your fireplace, follow these rules:
1.Do not connect this fireplace to a chimney flue serving a separate solid-fuel
burning fireplace or appliance.
2.Due to high temperatures, do not locate this fireplace in high traffic areas
or near furniture or draperies.
3.Proper clearances must be maintained.
4.If your fireplace is to be installed directly on carpeting, vinyl tile, or any
combustible material other than wood,
it must be installed on a metal or wood
panel extending the full width and
depth of the fireplace. See Figure 4.
CLEARANCES
Minimum clearances to combustibles for
the fireplace are as follows:
Back, and sides0"/mm
Perpendicular walls6" (152mm)
Floor0"/mm
Ceiling to louver opening42" (1067mm)
Front36" (914mm)
Top of Standoffs0"/mm
See General Venting on page 5 for specific
venting clearances.
FRAMING AND FINISHING
Figures 5 and 6 show typical framing of this
fireplace. Figure 7 on page 5 shows framing
for corner installation. All minimum clearances must be met. Do not install fireplace
directly on carpeting, vinyl tile, or any combustible material other than wood. The fireplace must set on a metal or wood panel
extending the full width and depth of the
fireplace.
See Accessories on page 35 for mantel kits
available for this fireplace. If you are using
a separate combustible mantel piece, refer
to Figure 8 on page 5 for proper installation
height. You can install noncombustible
mantels at any height above the fireplace.
Must maintain a minimum
1" clearance to combustibles
3
34
/
4
"
20"
5/8" for drywall facing
Figure 6 - Framing Clearances for Typical
Fireplace Installation
Flush with a wall
Through exterior wall
enclosed in a chase
Corner
installation
Figure 3 - Common Fireplace Locations
RW
D
FW
Fireplace sizeD x FW x RW
37"18 1/2"37"14"
41"18
Figure 4 - Fireplace Bottom Dimensions
1
/2"41"18"
Figure 5 - Framing Clearances for Installation Against an Exterior Wall
4
104558
OWNER’S MANUAL
PRE-INSTALLATION
PREPARATION
Continued
13"
29"
1
10
/4"
3
8
/4"
58"
Note
: Where two numbers are given the top number
is exclusive to the 37" Fireplace and the bottom
number is exclusive to the 41" Fireplace
Figure 7 - Framing Clearances for Corner Installation
These models are approved for use with
Simpson Dura-Vent 6 5/8" direct-vent pipe
components and terminations as well as both
flex and rigid Vanguard vent components.
41"
Nailing Tabs
1
2
3
4
5
6
7
Wall
Your fireplace is approved to be vented either
through the side wall, or vertically using the
following guidelines:
• Only use Vanguard or Simpson DuraV ent GS venting components or kits specifically approved for this fireplace.
• Minimum clearance between vent pipes
and combustible materials is 1" (25 mm),
except where stated otherwise.
• Combustible material may be flush with
the top front of fireplace with a maximum thichness of 3/4".
• Do not recess venting terminals into a
wall or siding.
• Install horizontal venting with a 1/4" rise
for every 12" of run toward the termination.
• You may paint the vent terminal with
450ºF (232ºC) heat-resistant paint to coordinate with the exterior finish.
• There must not be any obstruction such
as bushes, garden sheds, fences, decks,
or utility buildings within 24" from the
front of the termination cap.
• Do not locate termination cap where excessive snow or ice build up may occur.
Be sure to clear vent termination area after snow falls to prevent accidental blockage of venting system. When using snow
blowers, do not direct snow towards vent
termination area.
Location of Vent Termination
When locating vent termination, it is important to observe the minimum clearances
shown in Figure 9, page 6. You will avoid
extra framing by positioning your fireplace
against an already existing framing member. The sides of the fireplace may be positioned directly against combustible walls.
*Check with local codes or with the current
CAN/CGA B149[.1 or .2] Installation Codes
for Canada or the USA Installations follow
the current National Fuel Gas Code, ANSZ223.1, also known as NFPA 54.
Figure 8 - Clearances for Combustible Mantels
104558
Continued
5
(B)HDV37N/P AND (B)HDV41N/P
®
DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
GENERAL VENTING
D
E
V
B
L
V
A = clearance above grade, veranda, porch, deck, or balcony
[*12 inches (305mm) minimum]
B = clearance to window or door that may be opened
[12 inches (305mm) minimum]
C = clearance to permanently closed window [minimum 12 inches
(305mm) recommended to prevent condensation on window]
D = vertical clearance to ventilated soffit located above the terminal
within a horizontal distance of 24 inches (610mm) from the
center-line of the terminal [18 inches (457mm) minimum]
E = clearance to unventilated soffit [12 inches (305mm) minimum]
F = clearance to outside corner (see below)
G = clearance to inside corner (see below)
H = *not to be installed above a meter/regulator assembly within
36 inches (914mm) horizontally from the center-line of the regulator
† vent shall not terminate directly above a side-walk or paved driveway which is located between two
single family dwellings and serves both dwellings*
‡ only permitted if veranda, porch, deck or balconey is fully open on a minimum of 2 sides beneath the floor*
* as specified in CAN/SGA B149 (.1 or .2) Installation Codes (1991) for Canada or for U.S.A. installation follow
the current
Note: Local codes or regulations may require different clearances
C
F
V
B
TERMINATION CAP
National Fuel Gas Code, ANS Z223.1
Continued
Fixed
Closed
Openable
V
Openable
B
AIR SUPPLY INLET
X
B
Fixed
Closed
J
V
A
X
I = clearance to service regulator vent outlet [*72 inches (1829mm)
minimum]
J = clearance to non-mechanical air supply inlet to building or the
combustion air inlet to any other fireplace [*12 inches (305mm)
minimum]
K = clearance to a mechanical air supply inlet [*72 inches (1829mm)
minimum]
L = † clearance above paved side-walk or a paved driveway located on
public property [*84 inches (2133mm) minimum]
M = clearance under veranda, porch, deck [*12 inches (305mm) minimum ‡]
N = clearance above a roof shall extend a minimum of 24 inches (610mm)
above the highest point when it passes through the roof surface and
any other obstruction within a horizontal distance of 18 inches (457mm)
Termination Clearances for Buildings with Combustible and Noncombustible Exteriors
WARNING: Read all instructions completely and thoroughly
before attempting installation.
Failure to do so could result in
serious injury, property damage
or loss of life. Operation of improperly installed and maintained
venting system could result in
serious injury, property damage
or loss of life.
WARNING: Seal all vent connections. Seal only the outer pipe
connections with high temperature
silicone (600°F/316° C). Before joining elbows and pipes, apply a bead
of high temperature silicone sealant (GE RTV 106/Loctite RTV 81585)
to the male end of the elbow or
pipe. High temperature silicone
must also be used to re-seal any
connections after maintenance to
venting system.
NOTICE: Failure to follow these
instructions will void the warranty.
INSTALLATION
PRECAUTIONS
Consult local building codes before beginning
the installation. The installer must make sure
to select the proper vent system for installation. Before installing vent kit, the installer
must read this fireplace manual and vent kit
instructions.
Only a qualified service person should install venting system. The installer must follow these safety rules:
• Wear gloves and safety glasses for
protection
• Use extreme caution when using ladders
or when on roof tops
• Be aware of electrical wiring locations
in walls and ceilings
The following actions will void the warranty on your venting system:
• Installation of any damaged venting
component
• Unauthorized modification of the venting system
• Installation of any component part not
manufactured or approved by DESA
International
• Installation other than as instructed by
these instructions
WARNING: This gas fireplace
and vent assembly must be
vented directly to the outside.
The venting system must NEVER
be attached to a chimney serving
a separate solid fuel burning appliance. Each gas appliance must
use a separate vent system. Do
not use common vent systems.
WARNING: Horizontal sections of this vent system require
a minimum clearance of 2" from
the top of the pipe and 1" minimum to the sides and bottom.
Vertical sections of this system
require a minimum of 1" clearance to combustible materials on
all sides of the pipe.
INSTALLATION PLANNING
There are two basic types of direct-vent
installation:
• Horizontal T ermination
• Vertical Termination
It is important to select the proper length of
vent pipe for the type of termination you
choose. It is also important to note the wall
thickness.
For Horizontal Termination: Select the
amount of vertical rise desired. The horizontal run of venting must have 1/4" rise for
every 12" of run towards the termination.
WARNING: Never run the vent
downward as this may cause excessive temperatures which
could cause a fire.
You may use one or two 90° elbows in this
vent configuration. See Horizontal Termina-tion Configurations on pages 10 and 11.
For Vertical Termination: Measure the dis-
tance from the fireplace flue outlet to the
ceiling. Add the ceiling thickness, the vertical rise in an attic or second story, and allow
for sufficient vent height above the roofline.
You may use one or two 90° elbows in this
vent configuration. See Vertical TerminationConfigurations on pages 13 through 15.
Note:
You may use two 45° elbows in place
of a 90° elbow. You must follow rise to run
ratios when using 45° elbows.
For two-story applications, firestops are required at each floor level. If an offset is
needed in the attic, additional pipe and elbows will be required.
You may use a chase with a vent termination
with exposed pipe on the exterior of the
house. See Installing Vent System in a Chase,
below.
Your Vanguard direct-vent fireplace has
been tested for a minimum 3' rise with a
maximum 10" wall thickness. The maximum horizontal run is 20' with 8' vertical
rise (see Installation for Horizontal Termi-nation, page 8). The maximum vertical run
is 30' (see Installation for Vertical Termina-tion, page 12).
It is very important that the venting system
maintain its balance between the combustion air intake and the flue gas exhaust.
Certain limitations apply to vent configurations and must be strictly followed.
Installing Vent System in a Chase
A chase is a vertical box-like structure built
to enclose venting that runs along the outside of a building. A chase is not required for
such venting.
NOTICE: Treatment of firestops
and construction of the chase may
vary from building type to building type. These instructions are
not substitutes for the requirements of local building codes. You
must follow all local building
codes.
Note:
When installing in a chase, you should
insulate the chase as you would the outside
walls of your home. This is especially important in cold climates. Minimum clearance between vent pipes and combustible
materials such as insulation is 1".
After framing the chase (see Framing andFinishing on page 4) install the vent system
by following the installation instructions.
Continued
104558
7
(B)HDV37N/P AND (B)HDV41N/P
®
DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
VENTING
INSTALLATION
Continued
INSTALLATION FOR
HORIZONTAL TERMINATION
1.Determine the route your horizontal
venting will take.
of the horizontal vent termination on
the exterior wall must meet all local and
national building codes and must not
be easily blocked or obstructed.
WARNING: Do not recess vent
terminal into a wall or siding.
Snorkel terminations are available for
terminations requiring a vertical rise on
the exterior of the building (see Figures
10 and 11). Snorkel kit SVK is also
available (see page 15). Follow the same
installation procedures used for standard
horizontal terminations. If installing the
snorkel termination below grade (basement applications), you must provide
proper drainage to prevent water from
entering the snorkel termination (see
Figure 11). Do not back fill around the
snorkel termination.
2.Rigid vent pipes and fittings have special twist-lock connections. Assemble
the desired combination of pipe and elbows to the appliance adaptor with pipe
seams oriented towards the wall or floor.
Twist-lock Procedure: The female
ends of the pipes and fittings have four
indentations (locking lugs). These lugs
will slide straight into matching slots on
the male ends of adjacent pipes and fittings. (All connections must be sealed
with high temperature silicone sealant
as specified in the second warning statement on page 7.) Push the pipe sections
together and twist one section clockwise
approximately one-quarter turn until the
sections are fully locked. See Figure 12,
page 9.
must be supported every three feet. Use
wall straps for this purpose.
Flexible vent pipe must be installed with
spacer springs every 12". See Figure 12,
page 9. All connections must be clamped
tightly and sealed with high temperature
silicone sealant as specified in the second warning statement on page 7.
Note:
Note:
The location
Horizontal runs of vent
Snorkel
12" Minimum
Figure 10 - Snorkel Termination
Snorkel
12" Minimum
Adequate drainage
Figure 11 - Snorkel Termination with Drainage Pipe
8
104558
OWNER’S MANUAL
VENTING
INSTALLATION
Continued
3.Attach vent pipe assembly to the fireplace. Set fireplace in front of it’s permanent location to insure minimum clearances. Mark the wall for a 10" square hole
(for noncombustible material such as
masonry block or concrete, a 7 1/2" diameter hole is acceptable). See Figure 13.
The center of the hole should line up with
the center-line of the horizontal rigid vent
pipe. Cut a 10"x10" (254mm x 254mm)
square hole through combustible exterior
wall (7 1/2" [190mm] diameter hole if
noncombustible). Frame as necessary
(see Figure 13).
4" Clamp
Female
Locking
Lugs
Male
Slots
Rigid Vent Pipe Flexible Vent Pipe
Figure 12 - Vent Pipe Connections
7" Clamp
Spacer
Spring
4" Flex
Pipe
7" Flex
Pipe
4.Apply a bead of non-hardening mastic
around the outside edge of the vent cap.
Position the vent cap in the center of
the 7 1/2" or 10" hole on the exterior
wall with the arrow on the vent cap
pointing up. Insure proper clearance of
1" to combustibles is maintained. Attach the vent cap with four wood screws
supplied (see Figure 14).
Note
: Replace the wood screws with appropriate fasteners for stucco, brick, concrete,
or other types of siding.
WARNING: Do not recess vent
termination in to any wall. This
will cause a fire hazard.
For vinyl siding use vinyl siding standoffs between vent cap and exterior wall.
The vinyl siding standoff prevents excessive heat from melting the vinyl siding material. Bolt the vent cap to the
standoff. Apply non-hardening mastic
around outside edge of the standoff instead of the vent cap assembly. Use
wood screws provided to attach the
standoff. See Figure 15.
5.Slide the wall thimble over the vent pipe
before connecting the horizontal run to
the vent cap (see Figure 16).
Apply Mastic
to All Four
Sides
6.Carefully move the fireplace with vent
assembly attached toward the wall and
insert the vent pipe into the horizontal
termination. The pipe overlap should
be a minimum of 1 1/4". Apply silicone
to the outer pipe connection. Fasten all
vent connections with screws provided.
Refer to Fir eplace Installation on page
16 for instructions on securing unit to
framing or floor.
7.Slide the wall thimble against the interior wall surface and attach with screws
provided (see Figure 16).
Cut Vinyl Siding
Away to Fit
Standoff
Wood Screw
Standoff
Nut
Apply Mastic
to All Four Sides
Figure 15 - Installing Vinyl Siding Standoff
Vent Cap
Interior Wall
Surface
Bolt
Vent Opening
Combustible Wall
10"
(254mm)
10"
(254mm)
(Framing
Vent Opening
Noncombustible Wall
7 1/2"
(190mm)
Figure 13 - Vent Opening Requirements
104558
Detail)
Wood
Screw
Vent Cap
Figure 14 - Installing Horizontal Vent Cap
9
Wall
Thimble
Vent Cap
(Horizontal
Termination)
Figure 16 - Connecting Vent Cap with
Horizontal Vent Pipe
Screw
Horizontal
Vent Pipe
Continued
(B)HDV37N/P AND (B)HDV41N/P
®
DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
VENTING
INSTALLATION
Continued
Horizontal Termination
Configurations
Figures 17 through 21 show different configurations for venting with horizontal termination. Each figure includes a chart with
vertical minimum/maximum and horizontal maximum dimensions which must be
met. Seal all connections with high temperature silicone sealant (outer pipe only) as
specified in the second warning statement
on page 7. All horizontal terminations require 1/4" rise per 12" of horizontal run.
(30° and 90° only, no vertical pipe)
(30° elbow, 1' vertical pipe, 90° elbow)
Note:
corner installation.
Figure 18 - Horizontal Termination Configuration for Rigid Venting Using One
Figure 21 - Horizontal Termination Configuration for Rigid Venting Using Two 90
°
Elbows with Termination at 90° with Fireplace
104558
Continued
11
(B)HDV37N/P AND (B)HDV41N/P
®
DIRECT-VENT FIREPLACE (NATURAL/PROPANE/LP)
VENTING
INSTALLATION
Continued
INSTALLATION FOR
VERTICAL TERMINATION
NOTICE: Use rigid pipe only. Flex
venting is not to be used with a
vertical termination.
1.Determine the route your vertical venting will take. If ceiling joists, roof
rafters, or other framing will obstruct
the venting system, consider an offset
(see Figure 22) to avoid cutting
loadbearing members.
cial attention to these installation instructions for required clearances (air
space) to combustibles when passing
through ceilings, walls, roofs, enclosures, attic rafters, etc. Do not pack air
spaces with insulation. Also note maximum vertical rise of the venting system and any maximum horizontal offset limitations. Offsets must fall within
the parameters shown in Figure 9 on
page 6.
2.Set the fireplace in desired location.
Drop a plumb line down from the ceiling to the position of the fireplace exit
flue. Mark the center point where the
vent will penetrate the ceiling. Drill a
small locating hole at this point.
Drop a plumb line from the inside of
the roof to the locating hole in the ceiling. Mark the center point where the
vent will penetrate the roof. Drill a
small locating hole at this point.
Note:
Pay spe-
Roof
Flashing
Flat Ceiling Installation
1.Cut a 10" square hole in the ceiling using the locating hole as a center point.
The opening should be framed to
10"x10" (254mm x 254mm) inside dimensions, as shown in Figure 13 on
page 9 using framing lumber the same
size as the ceiling joists. If the area
above the ceiling is an insulated ceiling or a room, nail firestop from the
top side. This prevents loose insulation
from falling into the required clearance
space. Otherwise, install firestop below
the framed hole. The firestop should be
installed with no less than three nails
per side (see Figure 23).
2.Assemble the desired lengths of pipe
and elbows necessary to reach from the
fireplace flue up through the firestop.
All connections must be sealed with
high temperature silicone sealant as
specified in the second warning statement on page 7. Be sure all pipe and
elbow connections are fully twistlocked (see Figure 12, page 9).
3.Cut a hole in the roof using the locating
hole as a center point. (Cover any exposed open vent pipes before cutting
hole in roof.) The 10"x10" hole must
be measured on the horizontal; actual
length may be larger depending on the
pitch of the roof. There must be a 1"
clearance from the vent pipe to combustible materials. Frame the opening as
shown in Figure 13 on page 9.
If area above is a room, install firestop
above framed hole.
4.Connect a section of pipe and extend
up through the hole.
Note:
If an offset is needed to avoid
obstructions, you must support the vent
pipe every 3 feet. Use wall straps for
this purpose (see Figure 22). Whenever
possible, use 45° elbows instead of 90°
elbows. The 45° elbow offers less restriction to the flow of the flue gases
and intake air.
5. Place the flashing over the pipe
section(s) extending through the roof.
Secure the base of the flashing to the
roof and framing with roofing nails. Be
sure roofing material overlaps the top
edge of the flashing as shown in Figure
22. There must be a 1" clearance from
the vent pipe to combustible materials.
6.Continue to add pipe sections until the
height of the vent cap meets the minimum building code requirements described in Figure 9 on page 6.
must increase vent height for steep roof
pitches. Nearby trees, adjoining rooflines,
steep pitched roofs, and other similar factors may cause poor draft or down-drafting in high winds. Increasing the vent
height may solve this problem.
7.Twist-lock the vent cap onto the last
section of vent pipe and seal outer pipe
connection with high temperature silicone sealant as specified in the second
warning statement on page 7.
Note:
If the vent pipe passes through any
occupied areas above the first floor, including
storage spaces and closets, you must enclose
pipe. You may frame and sheetrock the enclosure with standard construction material. Make
sure and meet the minimum allowable clearances to combustibles. Do not fill any of the
required air spaces with insulation.
Note
: Y ou
Wall Strap
45° Elbow
Ceiling Firestop
Figure 22 - Offset with Wall Strap and 45
Elbows
If area above is not a room, install
firestop below framed hole.
°
Figure 23 - Installing Firestop
12
Cathedral Ceiling Installation
1.Remove shingles or other roof cover-
ing as necessary to cut the rectangular
hole for the support box. Mark the outline of the cathedral ceiling support box
on the roof sheathing using the locating hole as a center point.
2.Cut the hole 1/8" larger than the sup-
port box outline (see Figure 24, page 13).
104558
OWNER’S MANUAL
VENTING
INSTALLATION
Continued
3.Lower the support box through the hole
in the roof until the bottom of the box
extends at least 2" below the ceiling
(see Figure 24). Align the support box
vertically and horizontally using a level.
Temporarily tack the support box in
place through the inside walls and into
the roof sheathing.
4.Using tin snips, cut the support box from
the top corners down to the roofline and
fold the resulting flaps over the roof
sheathing (see Figure 25). Apply a bead
of non-hardening mastic around the top
edges of the support box to make a seal
between the box and the roof. Nail in
place with roofing nails. Remove any
combustible material that might be inside of the support box.
5.Complete the cathedral ceiling installation by following the same procedures outlined in steps 2 through 7 for
Flat Ceiling Installation, page 12
.
Vertical Termination Configurations
Figures 26 through 29 show four different configurations for vertical termination. All
connections must be sealed with high temperature silicone sealant as specified in the second
warning statement on page 7.