Monessen Hearth Direct Vent Gas Fireplace BDV300 User manual

MODELS:
BDV300, BDV400,
BDV500, BDV600
BDV SERIES
DIRECT VENT GAS FIREPLACE
INSTALLATION AND OPERATING INSTRUCTIONS
WARNINGS
IF THE INFORMATION IN THESE INSTRUCTIONS ARE
NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION
MAY RESULT CAUSING PROPERTY DAMAGE,
PERSONAL INJURY OR LOSS OF LIFE.
– Do not store or use gasoline or other 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 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
re department.
– Installation and service must be performed
by a qualied installer, service agency or the
gas supplier.
WARNING: Improper installation, adjustment,
alteration, services or maintenance can cause injury or
property damage. Refer to this manual. For assistance
or additional information consult a qualied installer,
service agency or the gas supplier.
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
certied kit is used.
This appliance may be installed in an aftermarket*,
permanently located, manufactured home, where not
prohibited by local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer.
DUE TO HIGH TEMPERATURES, THE
APPLIANCE SHOULD BE LOCATED
OUT OF TRAFFIC AND AWAY FROM
FURNITURE AND DRAPERIES.
CHILDREN AND ADULTS SHOULD BE
ALERTED TO THE HAZARDS OF HIGH
SURFACE TEMPERATURE AND SHOULD
STAY AWAY TO AVOID BURNS OR
CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE
SUPERVISED WHEN THEY ARE IN THE
SAME ROOM AS THE APPLIANCE.
CLOTHING OR OTHER FLAMMABLE
MATERIAL SHOULD NOT BE PLACED
ON OR NEAR THE APPLIANCE.
KEEP THE ROOM AREA CLEAR AND
FREE FROM COMBUSTIBLE MATERIALS,
GASOLINE, AND OTHER FLAMMABLE
VAPORS AND LIQUIDS.
READ BEFORE INSTALLING. SAVE THESE INSTRUCTIONS

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CONTENTS
Important Safety Information .......................... 3
Product Features.............................................. 5
Code Approval .................................................. 5
Pre-Installation Information
Installing Above 2000 Feet............................ 6
Orifice Sizes, Pressures and BTUs............... 6
Before You Install .......................................... 6
Fireplace Framing ......................................... 7
Fireplace Dimensions ................................... 8
Fireplace Location......................................... 9
Clearances ...................................................... 10
Securing Fireplace to Floor or Framing ........11
Installation Information.................................. 12
Vent Installation .............................................. 12
Installation Precautions............................... 12
Optional Top Vent Application ..................... 14
Installation Planning.................................... 15
Installation for Vertical Termination ............. 15
Rear Wall Vent Installation .......................... 18
Horizontal Termination Configuration .......... 20
Below Grade Installation ............................. 22
Vertical Through-the-Roof Installation......... 23
Cathedral Ceiling Installation ...................... 24
Fireplace Installation...................................... 26
Check Gas Type.......................................... 26
Installing Gas Piping to Fireplace/Burner
System Location ......................................... 26
Checking Gas Pressure ................................. 28
Electrical Installation ..................................... 29
Electrical Wiring .......................................... 29
Remote Wall Switch .................................... 29
Glass Removal................................................ 30
Final Installation ............................................. 31
Rockwool Placement .................................. 31
Log Placement ............................................ 31
Lava rock and Embers Placement .............. 31
Operating Instructions................................... 32
What To Do If You Smell Gas...................... 31
Lighting Pilot for the First Time ................... 32
Lighting Pilot ............................................... 33
Lighting Burner............................................ 34
To Turn Off Gas........................................... 34
Cleaning and Maintenance ............................ 35
Burmer, Pilot and Control Compartment ..... 35
Pilot Flame .................................................. 35
Burmer Flame ............................................. 36
Vent System ................................................ 36
Glass Door .................................................. 36
Logs ............................................................ 36
Rock Wool .................................................. 36
Replacement Parts ......................................... 37
Vent Components ....................................... 37
Firebox Components................................... 38
Standing Pilot - Millivolt Control .................. 40
Logs ............................................................ 42
Troubleshooting ............................................. 42
Warranty ...........................................Back Cover

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4. Never install the replace
• in a recreational vehicle
• where curtains, furniture, clothing, or other ammable
objects are less than 42" from the front, top, or sides
of the replace
• in high trafc areas
• in windy or drafty areas
5. This replace reaches high temperatures. Keep children
and adults away from hot surfaces to avoid burns or cloth-
ing ignition. Fireplace will remain hot for a time after
shutdown. Allow surfaces to cool before touching.
6. Carefully supervise young children when they are in the
room with replace.
7. Do not modify replace under any circumstances. Any
parts removed for servicing must be replaced prior to
operating replace.
8. Turn replace off and let cool before servicing, install-
ing, or repairing. Only a qualied service person should
install, service, or repair the replace. Have burner system
inspected annually by a qualied service person.
9. You must keep control compartments, burners, and cir-
culating air passages clean. More frequent cleaning may
be needed due to excessive lint and dust from carpeting,
bedding material, pet hair, etc. Turn off the gas valve and
pilot light before cleaning replace.
10. Have venting system inspected annually by a qualied
service person. If needed, have venting system cleaned
or repaired. See Cleaning and Maintenance, page 32.
11. Keep the area around your replace clear of combustible
materials, gasoline, and other ammable vapor and liq-
uids. Do not run replace where these are used or stored.
Do not place items such as clothing or decorations on or
around replace.
INSTALLER
Please leave these instructions with the owner.
OWNER
Please retain these instructions for future reference .
IMPORTANT SAFETY INFORMATION
This replace is a vented product. This replace must be prop-
erly installed by a qualied service person. The glass door
must be properly seated and sealed. If this unit is not properly
installed by a qualied service person with glass door properly
seated and sealed, combustion leakage can occur.
CARBON MONOXIDE POISONING: Early signs of
carbon monoxide poisoning are similar to the u with head-
aches, dizziness and/or nausea. If you have these signs, the
replace may not have been installed properly. Get fresh air
at once! Have the replace inspected and serviced by a quali-
ed 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 inuence
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 replace.
1. This appliance is only for use with the type of gas indi-
cated on the rating plate. This appliance is not convertible
for use with other gases unless a certied kit is used.
2. For propane/LP replace, do not place propane/LP supply
tank(s) inside any structure. Locate propane/LP supply
tank(s) outdoors. To 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.
Continued on page 4
• Read this owner’s manual carefully and completely before trying to assemble, operate,
or service this fireplace.
• Any change to this fireplace or its controls can be dangerous.
• Improper installation or use of this fireplace can cause serious injury or death from
fire, burns, explosions, electrical shock and carbon monoxide poisoning.
WARNING

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IMPORTANT SAFETY INFORMATION
Continued from page 3
12. Do not use this replace to cook food or burn paper or
other objects.
13. Never place anything on top of replace.
14. Do not use any solid fuels (wood, coal, paper, cardboard,
etc.) in this replace. Use only the gas type indicated on
rating plate.
15. This appliance, when installed, must be electrically
grounded in accordance with local codes or in the
absence of local codes, with the National Electrical
Code, ANSI/NFPA 70, or the Canadian Electrical Code,
CSA C22.1.
16. Do not obstruct the ow 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.
17. When the appliance is installed directly on carpeting,
tile or other combustible material other than wood oor-
ing, you must set appliance on a metal or wood panel
or hearth pad extending the full width and depth of the
appliance.
18. Do not use replace if any part has been exposed to or has
been under water. Immediately call a qualied service
person to arrange for replacement of the unit.
19. Do not operate replace if any log is broken.
20. Do not use a blower insert, heat exchanger insert, or
any other accessory not approved for use with this re-
place.
21. Do not operate the replace with glass door removed,
cracked, or broken.
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is normal for fireplaces fabricated of steel to
give off some expansion and/or contraction noises
during the start up or cool down cycle. Similar
noises are found with your furnace heat exchanger
or car engine.
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is not unusual for gas fireplace to give off some
odor the first time it is burned. This is due to the
manufacturing process.
Please ensure that your room is well ventilated
during burn off — open all windows.
It is recommended that you burn your fireplace for
at least ten (10) hours the first time you use it. Place
the fan switch in the “OFF” position during this time.

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PRODUCT FEATURES AND CODE APPROVAL
Off/Pilot/On Knob
Optional Remote
Receiver
Figure 1 - BDV300, 400, 500, 600 Fireplace
• This appliance has been certi-
ed for use with either natural or
propane gas. See appropriate data
plates.
• This appliance is not for use with
solid fuels.
• The appliance is approved for
bedroom or bedsitting room
installations.
• The appliance must be installed
in accordance with local codes if
any. If none exist use the current
installation code. ANSI Z223.1/
NFPA 54 in the USA, CAN/CGA
B149 in Canada.
• This appliance is mobile home
approved.
• The appliance must be properly
connected to a venting system.
• The appliance is not approved for
closet or recessed installations.
Hi/Lo Knob
PRODUCT SPECIFICATIONS
The efciency rating of this appliance is
a product thermal efciency rating deter-
mined under continuous operating condi-
tions and was determined independently of
any installed system.
Thermal Efciency = up to 80%
CODE APPROVAL
Direct Vent type appliances draw all combustion air from outside of the dwelling through the vent pipe.
These appliances have been tested by CSA and found to comply with the established standards for DIRECT VENT GAS
FIREPLACE HEATERS in the USA and Canada as follows:
LISTED VENTED GAS FIREPLACE HEATER
TESTED TO: ANSI Z21.88-2002/CSA 2.33-2002 STANDARDS
Blower Control
On/Off/RS Switch
Ignitor

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PRE-INSTALLATION INFORMATION
INSTALLING ABOVE 2000 FEET
• In the USA, the appliance must be derated 4% for every 1,000 ft above 2,000 ft elevations.
• In Canada, these appliances are certied for altitudes of 0 – 2000 ft, and must be de-rated by 10 percent for installations
between 2000 and 4,500 ft. (derate an additional 4% for every 1,000 ft. above 4,500 ft. elevations).
ORIFICE SIZES, PRESSURES AND BTUs
NATURAL GAS PROPANE GAS
Manifold Press: (W.C.) 3.5" Manifold Press: (W.C.) 10"
Maximum Supply Pressure 10.5" Maximum Supply Pressure 13"
Minimum Supply Pressure 4.5" Minimum Supply Pressure 11"
Model Number BDV300 BDV400 BDV500 BDV600
Natural Propane Natural Propane Natural Propane Natural Propane
Max. Btu/hr Input 21,000 21,000 24,000 24,000 26,000 26,000 26,000 26,000
Min. Btu/hr Input 15,000 15,000 17,000 17,000 20,000 20,000 20,000 20,000
Orifice size (as shipped) #44 #55 #42 #54 #41 1.50mm #41 1.50mm
BEFORE YOU START
Read this homeowner manual thoroughly and follow all instructions carefully. Inspect all contents for shipping damage and
immediately inform your dealer if any damage is found. Do not install any unit with damaged, incomplete, or substitute parts.
Check your packing list to verify that all listed parts have been received. You should have the following:
• Fireplace (Firebox and Burner System)
• Rock Wool
• Log Set
ITEMS REQUIRED FOR INSTALLATION
Tools: Building Supplies:
• Phillips Screwdriver • Framing Materials
• Hammer • Wall Finishing Materials
• Saw and/or saber saw • Caulking Material (Noncombustible)
• Level • Fireplace Surround Material (Noncombustible)
• Measuring Tape • Piping Complying with Local Codes
• Electric Drill and Bits • Tee Joint
• Pliers • Pipe Sealant Approved for use with Propane/LPG
• Square (Resistant to Sulfur Compounds)
• Pipe Wrench

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FIREPLACE FRAMING
Firebox framing can be built before or after the appliance is set in place. Construct rebox framing following Figure 2 and
the chart below for your specic installation requirements. See Figure 3 on Page 8 for rebox dimensions. The framing
headers may rest on the top of the rebox standoffs.
The rebox may be installed directly on a combustible oor or raised on a platform of an appropriate height. When the rebox
is installed directly on carpeting, tile, or other combustible material, other than wood ooring, the rebox shall be installed
on a metal or wood panel extending the full width and depth of the enclosure.
300 400 500 600
A 331/2" 371/2" 411/2" 471/2"
B 371/4" 407/8" 407/8" 407/8"
C 281/4" 291/4" 331/4" 391/4"
D 141/8" 145/8" 165/8" 195/8"
E 5511/16" 607/8" 647/8" 707/8"
F 2713/16" 307/16" 327/16" 357/16"
G 133/4" 153/4" 153/4" 153/4"
H 393/8" 431/16" 457/8" 501/8"
Corner Installation
Stud Location
Inside Chase Installation
Recessed Installation
Do not fill spaces around firebox with
insulation or other materials. This
could cause a fire.
WARNING
Figure 2 - Framing Dimensions

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PRE-INSTALLATION INFORMATION
Figure 3 - Fireplace Dimensions
DESCRIPTION Key Letter BDV300 BDV400 BDV500 BDV600
Overall Front Width A 331/16" 371/16" 411/16" 471/16"
Inside Width B 297/8" 32" 36" 42"
Glass Width C 27" 29" 33" 39"
CTR Pipe D 161/2" 181/2" 201/2" 231/2"
Rear Width E 28" 29" 33" 39"
Glass Height F 18" 203/8" 203/8" 203/8"
Front Height G 315/8" 341/2" 341/2" 341/2"
Depth H 14" 16" 16" 16"
Height to Standoffs I 37" 401/2" 401/2" 401/2"

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PRE-INSTALLATION INFORMATION
FIREPLACE LOCATION
Plan for the installation of your appliance. This includes determining where the unit is to be installed, the vent conguration
to be used, framing and nishing details, and whether any optional accessories (i.e. blower, wall switch, or remote control)
are desired. Consult your local building code agency to ensure compliance with local codes, including permits and inspec-
tions.
The following factors should be taken into consideration:
• Clearance to side-wall, ceiling, woodwork, and windows. Minimum clearances to combustibles must be maintained.
• This replace may be installed along a wall, across a corner, or use an exterior chase. See Figure 4 for suggested loca-
tions.
• Location should be out of high trafc areas and away from furniture and draperies due to heat from appliance.
• Never obstruct the front opening of the replace.
• Do not install in the vicinity where gasoline or other ammable liquids may be stored.
• Vent pipe routing. See Venting section found in this manual for allowable venting congurations.
• These units can be installed in a bedroom. See National Fuel Gas Code ANSI Z233.1/NFPA 54 — (current edition), the
Uniform Mechanical Code — (current edition), and Local Building Codes for specic installation requirements.
Figure 4 - Locating Gas Fireplace
A Flat on Wall
B Cross Corner
C Island**
D Room Divider*
E Flat on Wall Corner*
F Chase Installation
Y 4" Minimum
** Island (C) and room divider (D) installation is possible as long as the horizontal portion of vent system (X)
does not exceed 20'. See Installing Horizontal Termination Configuration on pages 18 and 19.
* When you install your fireplace in (D) room divider or (E) flat on wall corner positions (Y), a minimum of 6"
clearance must be maintained from perpendicular wall and front of fireplace.

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The replace must be secured to the oor and/or to framing studs as shown in Figure 5. Use two (2) wood screws or masonry/
concrete screws to secure replace to the oor. Use four (4) screws to attach replace to framing. The side brackets are
adjustable from 1/2" to 5/8" to accommodate different thickness of material.
SECURING FIREPLACE TO FLOOR OR FRAMING
Figure 5 - Securing Fireplace to Floor and Framing Studs
Framing
Framing
Adjustable
Bracket
Adjustable
Bracket
Screws
Screws
Screws
Adjustable
Bracket
Adjustable
Bracket

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Follow these instructions carefully to ensure safe installation. Failure to follow
instructions exactly can create a fire hazard.
The appliance cannot be installed on a carpet, tile or other combustible material other
than wood flooring. If installed on carpet or vinyl flooring, the appliance shall be installed
on a metal, wood or noncombustible material panel extending full width and depth of
the appliance.
WARNING
CLEARANCES
CLEARANCES TO COMBUSTIBLES
MANTEL CLEARANCES
NOTE: The combustible area above the facing must not protrude more than 3/4" from the facing. If it does,
it is considered a mantel and must meet the mantel requirements listed in this manual.
Figure 6 - Clearances

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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
Failure to follow these instructions will
void the warranty.
NOTICE
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 replace manual and vent kit instructions.
Only a qualied installer/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 rooftops.
• 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 modication of the venting system.
• Installation of any component part not manufactured or approved by Lexington Forge.
• Installation other than permitted by these instructions.
FINISHING MATERIAL
NOTE: Any remote wiring (i.e. remote control, wall switch, and optional fan) must be done prior to final
finishing to avoid costly reconstruction.
INSTALLATION INFORMATION
Only noncombustible materials (i.e. brick, tile, slate, steel, or other materials with a UL re rating of Zero) may be used to cover the
black surface of the appliance. A 300°F minimum adhesive may be used to attach facing materials to the black surface. If joints between
the nished wall and the replace surround are sealed, a 300°F minimum sealant material (General Electric RTV103 or equivalent) must
be used.
Never obstruct or modify the air inlet or outlet grills (louvers). This may create a
fire hazard.
WARNING
VENT INSTALLATION

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VENT INSTALLATION
This fireplace must be vented 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 3" 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.
Figure 7 - Combustible Clearances for Vent Pipe
A Minimum of 3" Clearance to the Top
Is Required Along Horizontal Length
of Pipe until Flue Pipe Goes Through
Nearest Wall.
WARNING

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VENT INSTALLATION
OPTIONAL TOP VENT APPLICATION
The appliance is shipped as a rear vent unit. If the installation
layout requires the unit to be a top vent conguration the appli-
ance can be converted by following the steps below.
When removing and retting the plates and adapter be sure the
associated gaskets are undamaged and retted as required.
1. Remove the eight (8) screws securing the ue pipe adapter
to the replace body. See Figure 8.
2. Set the ue pipe adapter aside, complete with the gasket.
Do not damage the gaskets as the adapter and gasket must
be retted.
3. Remove the eight (8) screws securing the ue pipe cover to
the top of the intake box and remove the cover and gasket.
See Figure 8.
4. Remove eight (8) screws securing the ue pipe to the back
of the intake box and remove the pipe and gasket. See
Figure 9.
5. Replace ue pipe to top of rebox. Ensure the gasket is in
place and undamaged. Secure with eight (8) screws. See
Figure 9.
6. Place the ue pipe cover and gasket removed in step 3 over
the ue opening in bottom of the intake box.
7. Ret the ue pipe adapter and gasket to the top of re-
place. Secure the adapter with eight (8) screws removed
in step 1.
After conversion to top vent
configuration the 4" (100mm) flue pipe
should be concentric within the 65/8"
(175mm) outer collar (within 1/4").
WARNING
Figure 8 - Removing sixteen (16) Screws from
Flue Pipe Adapter and Flue Pipe Cover
Figure 9 - Removing Flue Pipe Figure 10 - Attaching Flue Pipe to Top
Vent Configurations
Screws
Flue Pipe
Cover
Flue Pipe
Adapter
Flue
Cover
Flue Pipe
Screws
Flue Pipe
Screws

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VENT INSTALLATION
INSTALLATION PLANNING
There are two basic types of direct-vent installation:
• Horizontal Termination
• 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. All horizontal run
of venting must have 1/4" rise for every 12" of run towards the
termination.
You may use up to three 90° elbows in this vent conguration. See
Horizontal Termination Congurations on pages 20 and 21.
FOR VERTICAL TERMINATION
Measure the distance from the replace oor to the ceiling. Add the ceiling thickness, the vertical rise in an attic or second
story, and allow for sufcient vent height above the roof line.
NOTE: You may use two 45° elbows in place of a 90° elbow. You must follow rise to run ratios when using
45° elbows. The appliance is approved for use with three 90° elbows maximum or a combination of 90°
and 45° elbows up to a maximum of 270°.
For two-story applications, restops are required at each oor 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. If pipe is enclosed in chase, it is not exposed.
It is very important that the venting system maintain its balance between the combustion air intake and the ue gas exhaust.
Certain limitations apply to vent congurations and must be strictly followed.
INSTALLING A VENT SYSTEM IN AN OUTSIDE CHASE
A chase is a vertical boxlike structure built to enclose venting that runs along the outside of a building. A chase is required
for such venting.
Never run the vent pipe level or
downward. This may cause excessive
temperatures which could cause
a fire.
WARNING
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.
NOTICE
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. Insulation should be considered
a combustible material. Maintain proper clearances to all combustible materials.
NOTICE

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

 








VENT INSTALLATION
Always maintain minimum clearances around vent systems. The minimum clearances
to combustibles for horizontal vent pipe are 3" at the top and 1" at the sides and bottom
of the vent system until the pipe penetrates the nearest vertical wall. A 1" minimum
clearance all around the pipe must be maintained. Do not pack the open air spaces with
insulation or other materials. This could cause high temperatures and may present a
fire hazard.
WARNING
Figure 11 - Horizontal Vent Termination Location
Vent Terminal Air Supply Inlet Area Where Terminals Not Permitted
Inside Corner Detail FOR HORIZONTAL TERMINATION
MINIMUM DISTANCES
A = Clearance above the grade, a veranda, porch, deck, or balcony [*12" (305mm) minimum].
B = Clearance to window or door that may be opened [*12" (305mm) minimum].
C = Clearance to permanently closed window [*minimum 12" (305mm) recommended to prevent condensation on
window]
D = Vertical clearance to ventilated soft located above the terminal within a horizontal distance of two (2) feet (610mm)
from the centerline of the terminal [18" (457mm) minimum].
E = Clearance to unventilated softs [12" (305mm) minimum]. Clearance to vinyl soft [30" (762mm)].
F = Clearance to an outside corner. See page 12.
G = Clearance to an inside corner. See page 12.
H = *Not to be installed above a gas meter/regulator assembly within three (3) feet (914mm) horizontally from the centerline
of the regulator.
I = Clearance to service regulator vent outlet [*3' (914mm) minimum].
J = Clearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance [*12"
(305mm)minimum].
K = Clearance to a mechanical air supply inlet [*6' (1829mm) minimum].
L = Clearance above a paved sidewalk or paved driveway located on public property [**7' (2133mm) minimum].
M = Clearance under veranda, porch, deck, or balcony [*12" (305mm) minimum***].
N = Clearance above a roof shall extend a minimum of 24" (610mm) above the highest point when it passes through the roof
surface and any other obstruction within a horizontal distance of 18" (457mm).
* As specified in CAN/CGA B149 Installation Codes. Note: Local codes or regulations may require different
clearances.
** A vent must not terminate directly above a sidewalk or paved driveway, which is located between two single-family
dwellings and serves both dwellings.
*** Only permitted if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.

16 54D0108
54D0108 17

 
 



   
 
 

   
   



      
  
       
 
   
   
      

   
   





 
 
 
       
 




















       
 
VENT INSTALLATION
TERMINATION CLEARANCES FOR BUILDINGS WITH COMBUSTIBLE
AND NONCOMBUSTIBLE EXTERIORS
Figure 12 - Allowable Venting Chart
HOW TO USE THE VENT GRAPH
The Vent Graph should be read in conjunction with the following
vent installation instructions to determine the relationship between
the vertical and horizontal dimensions of the vent system.
1. Determine the height of the center of the horizontal vent pipe
exiting through the outer wall. Using this dimension on the
Sidewall Vent Graph below, locate the point intersecting with
the slanted graph line.
2. From the point of this intersection, draw a vertical line to the
bottom of the graph.
3. Select the indicated dimension, and position the replace in
accordance with same.
Example: If the vertical dimension from the floor of the
fireplace is 11' (3.4m) the horizontal run to the face of the
outer wall must not exceed 14' (4.3m).
Example: If the vertical dimension from the floor of the unit
is 7’ (2.14m), the horizontal run to the face of the outer
wall must not exceed 81/2' (2.6m).
Sidewall Vent Graph showing the relationship between vertical and
horizontal dimensions for a Direct Vent ue system. Figure 13 - Rear Wall Venting Graph
Horizontal Dimension From the Outside of
Termination to the Back of the Fireplace
Vertical Dimension From the Floor of Unit to the Center of the
Horizontal Vent Pipe
Dimensions in
Feet
20"

18 54D0108
54D0108 19










Figure 15 - Vent Opening Requirements
REAR WALL VENT INSTALLATION
When installed as a rear vent unit this appliance may be vented directly to a termination located on the rear wall behind
the appliance
• The maximum horizontal distance between the rear of the appliance and the outside of termination is 20" (508 m). See
Figure 14.
• Only one 45° elbow is allowed in these installations.
VENTING INSTALLATION
Note: Horizontal runs of vent
must be supported every three
feet (914mm). Use wall straps
for this purpose.
Figure 16 - Rigid Vent Pipe Connections
Female
Locking Lugs
Male Slots
1. Locate and cut the vent opening in the wall. For
combustible walls rst frame in opening. See
Figure 14.
Combustible Walls: Cut a 111⁄2"H x 91⁄2" W
(292mm x 24mm) hole through the exterior wall
and frame as shown. See Figure 15.
Noncombustible Walls: Hole opening should be
71⁄2" (190mm) in diameter.
2. Rigid vent pipes and ttings 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 oor.
Twist-lock Procedure: The female ends of the
pipes and ttings have three locking lugs (indenta-
tions). These lugs will slide straight into match-
ing slots on the male end of adjacent pipes and
ttings. Push the pipe sections together and twist
one section clockwise approximately one-quarter
turn until the sections are fully locked. See Figure
16.
3. Attach vent pipe assembly to the replace. Set
replace in front of its permanent location to insure
minimum clearances. Mark the wall for a 111⁄2"H
x 91⁄2"W (292mm x 24mm) rectangle hole (for
noncombustible material such as masonry block or
concrete, a 71/2" [190mm] diameter hole is accept-
able). See Figure 15. The center of the hole should
line up with the center line of the horizontal rigid vent pipe end. Be sure to allow for minimum rise. Cut a 111/2"x91/2"
(292mm X 241mm) rectangle hole through combustible exterior wall (71/2" [190mm] diameter hole if noncombustible).
Frame as necessary. Allow 1/4" minimum rise per foot. See Figure 15.
Figure 14 - Rear Vent Application,
Maximum Horizontal Distance
Top View Flat Installation

18 54D0108
54D0108 19
HOT
HOT
VENT INSTALLATION
4. Apply a bead of non-hardening mastic around the outside
edge of vent cap. Position the vent cap in the center of hole
on the exterior wall with the word “UP” on the vent cap
facing up. Insure proper clearance of 1" to combustibles
is maintained. Attach the vent cap with four wood screws
supplied. See Figure 17.
Do not recess vent termination
into any wall. This will cause a
fire hazard.
WARNING
NOTE: Replace the wood screws with appropriate
fasteners for stucco, brick, concrete, or other types
of siding.
For vinyl siding, stucco, or wood exterior 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-harden-
ing mastic around outside edge of the standoff instead of the
vent cap assembly. Use wood screws provided to attach the
standoff. See Figure 18.
5. Slide the wall thimble over the vent pipe before connecting
the horizontal run to the vent cap. See Figure 19.
6. Carefully move the replace with vent assembly attached
toward the wall and insert the vent pipe into the horizontal
termination. The pipe overlap should be a minimum of
11/4". Apply silicone to the outer pipe connection. Fasten
all vent connections with screws provided.
7. Slide the wall thimble against the interior wall surface and
attach with srews. See Figure 19.
Figure 17 - Installing Horizontal Vent Cap
REAR WALL VENT INSTALLATION (continued)
Figure 18 - Installing Vinyl Siding Standoff
Apply
Mastic to
All Four
Sides
Vent Cap
Wood
Screw
Cut Vinyl Siding
Away to Fit Standoff
Wood Screw
Vent Cap
Bolt
Apply Mastic to
All Four Sides
Nut
Standoff
Figure 19 - Connecting Vent Cap with Horizontal
Vent Pipe
Interior Wall
Surface
Decorative
Wall
Thimble
Horizontal
Vent Pipe
Screw
Vent Cap
(Horizontal
Termination)
Deflecting Shield
Deflecting Shield

20 54D0108
54D0108 21
VENT INSTALLATION
HORIZONTAL TERMINATION CONFIGURATIONS
Since it is very important that the venting system maintain its balance between the combustion air intake and the ue
gas exhaust, certain limitations as to vent congurations apply and must be strictly adhered to.
The Vent Graph, showing the relationship between vertical and horizontal side wall venting, will help to determine the vari-
ous dimensions allowable. See page 17.
Minimum clearance between vent pipes and combustible materials is 3" on top and 1" from bottom and sides unless
otherwise noted.
When vent termination exits through foundations less than 20" below siding outcrop, the vent pipe must ush up with
the siding.
It is best to locate the replace in such a way that minimizes the number of offsets and horizontal vent length.
The horizontal vent run refers to the total length of vent pipe from the ue collar of the replace (or the top of the Transition
Elbow) to the face of the outer wall.
When installing the appliance as a rear vent unit, the 90° or 45° transition elbow
attached directly to the rear of the unit is NOT INCLUDED in the following criteria and
calculations, and unless specifically mentioned should be ignored when calculating
venting layouts.
WARNING
Figure 20 - Maximum Three (3) 90° Elbows
Per Installation
• The maximum number of 90° elbows per side wall installation is three (3). See Figure 20.
• If a 90° elbow is tted directly on top of the replace ange the maximum horizontal vent run before the termination or
a vertical rise is 36” (914 mm). See Figure 21.
Figure 21 - Maximum Horizontal Run with No Rise
3 x 90°
Elbows
3 x 90°
Elbows
20"
Max.
20"
Max.