Monessen Hearth HBDV400, HBDV300 User Manual
HBDV SERIES
DIRECT VENT
GAS FIREPLACE
INSTALLATION AND
MODELS:
HBDV300 & HBDV400
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 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 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
fi re department.
– Installation and service must be performed
by a qualifi 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 qualifi ed installer,
service agency or the gas supplier.
This appliance may be installed in an aftermarket*,
permanently located, manufactured home (USA
only) or 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, unless a
certifi ed kit is used.
* Aftermarket: Completion of sale, not for purpose of resale,
from the manufacturer.
WARNINGS
OPERATING INSTRUCTIONS
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
CONTENTS
Important Safety Information .......................... 3
Product Features .............................................. 5
Code Approval .................................................. 5
Pre-Installation Information ......................... 6–9
High Elevation Installation ............................. 6
Orifi ce Sizes, Pressures and BTUs ............... 6
Before You Start ............................................ 6
Fireplace Framing ......................................... 7
Fireplace Dimensions.................................... 8
Fireplace Location ......................................... 9
Clearances ...................................................... 10
Securing Fireplace to Floor or Framing ........11
Installation Information .................................. 12
Installation Precautions ............................... 12
Vent Installation .............................................. 13
Optional Top Vent Application .....................14
Installation Planning .................................... 15
Rear (Through the Wall) Applications ......... 18
Horizontal Termination Confi guration .......... 20
Below Grade Installations ........................... 22
Vertical Through-the-Roof Installation ......... 23
Installation for Vertical Termination ............. 24
Vertical or Horizontal Flex Venting .............. 26
Fireplace Installation ...................................... 28
Check Gas Type .......................................... 28
Installing Gas Piping to Fireplace/Burner
System Location.......................................... 28
Checking Gas Pressure ................................. 30
Glass Removal & Brick Installation .............. 32
Final Installation ....................................... 33–35
Placement of lava rock, rock wool
and logs................................................. 33–35
Installing Andirons ....................................... 35
Operating Instructions (Millivolt) .................. 36
What To Do If You Smell Gas ...................... 36
Lighting Millivolt Pilot for the First Time ....... 37
Lighting Pilot................................................ 37
Lighting Burner ............................................ 38
To Turn Off Gas ........................................... 38
Cleaning and Maintenance ............................ 39
Burner, Pilot and Control Compartment ...... 39
Pilot Flame .................................................. 39
Burner ......................................................... 39
Burner Flame .............................................. 39
Vent System ................................................ 40
Glass Door .................................................. 40
Logs ............................................................ 40
Rock Wool .................................................. 40
Troubleshooting ............................................. 41
Replacement Parts ................................... 43–48
Fireplace Components .......................... 43–44
Millivolt Engine Components ................ 45–46
Vent Components........................................47
Logs ............................................................ 48
Massachusetts Residents Requirements..... 49
Warranty ...........................................Back Cover
Electrical Installation...................................... 30
Electrical Wiring ..........................................30
Remote Wall Mounted Switch ..................... 31
Remote Wall Switch .................................... 31
Optional DC Remote Systems .................... 31
Optional Fan................................................ 31
2 54D5031
IMPORTANT SAFETY INFORMATION
INSTALLER
Please leave these instructions with the appliance.
• Read this owner’s manual carefully and completely before trying to assemble, operate,
or service this fi replace.
• Any change to this fi replace or its controls can be dangerous.
• Improper installation or use of this fi replace can cause serious injury or death from
WARNING
fi re, burns, explosions, electrical shock and carbon monoxide poisoning.
This fireplace is a vented product. 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, combustion leakage can occur.
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, the
fireplace may not have been installed properly. Get fresh
air at once! Have the 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 odormaking 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.
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. 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.
OWNER
Please retain these instructions for future reference
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
shutdown. Allow surfaces to cool before touching.
6. Carefully supervise young children when they are in the
room with fireplace.
7. Do not modify 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, install-
ing, or repairing. Only a qualified service person should
install, service, or repair the fireplace. Have burner system
inspected annually by a qualified 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. 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 Maintenance, page 39.
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.
Continued on page 4
.
54D5031 3
IMPORTANT SAFETY INFORMATION
Continued from page 3
12. Do not use this fireplace to cook food or burn paper or
other objects.
13. Never place anything on top of fireplace.
14. Do not use any solid fuels (wood, coal, paper, cardboard,
etc.) in this fireplace. 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 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.
17. When the appliance is installed directly on carpeting, tile
or other combustible material other than wood flooring,
you must set appliance on a metal or wood panel or hearth
pad extending the full width and depth of the appliance.
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
It is normal for fi replaces 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 fi replaces to give off some
odor the fi rst 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 fi replace for
at least ten (10) hours the fi rst time you use it. Place
the fan switch in the “OFF” position during this time.
18. Do not use fireplace if any part has been exposed to or
has been under water. Immediately call a qualified service
person to arrange for replacement of the unit.
19. Do not operate fireplace 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 fireplace.
21. Do not operate the fireplace with glass door removed,
cracked, or broken.
Never connect unit to private
(non-utility) 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
®
4 54D5031
PRODUCT SPECIFICATIONS
• This appliance has been certified 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.
PRODUCT FEATURES AND CODE APPROVAL
• The appliance must be properly
connected to a venting system.
• The appliance is not approved for
closet or recessed installations.
The efficiency rating of this appliance is a product thermal efficiency
rating determined under continuous
operating conditions and was determined independently of any installed
system.
Thermal efficiency up to 75%
AFUE efficiency up to 71%
Hi/Lo Knob
Off/Pilot/On Knob
On/Off/RS Switch
Figure 1 - HBDV300 and HBDV400 Fireplace
Ignitor
Blower Control
Optional Remote
Receiver
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 Z21.88-2007/CSA 2.33-2007 STANDARDS
A manufactured home (USA only) or mobile home OEM installation must conform with the Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, or when such a standard is not applicable, the Standard for
Manufactured Home Installations, ANSI/NCSBCS A225.1, or Standard for Gas Equipped Recreational Vehicles and
Mobile Housing, CSA Z240.4.
54D5031 5
PRE-INSTALLATION INFORMATION
HIGH ELEVATIONS
Input ratings are showin in BTU per hour adn are certified without deration for elevations up to 4,500 feet (1,370m) above
sea level.
For elevations above 4,500 feet (1,370m) in USA, installations must be in accordance with the current ANSI Z223.1/NFPA
54 and/or local codes having jurisdiction.
In Canada, please consult provincial and/or local authorities having jurisdiction for installations at elevations above 4,500
fee (1,370m).
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 HBDV300 HBDV400
Natural Propane Natural Propane
Max. Btu/hr Input 23,000 23,000 27,000 26,000
Min. Btu/hr Input 16,000 18,000 19,000 20,000
Orifi ce size 2.35mm 1.50mm #41 1/16
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
6 54D5031
PRE-INSTALLATION INFORMATION
FIREPLACE FRAMING
Firebox framing can be built before or after the appliance is set in place. Construct firebox framing following Figure 2 and
the chart below for your specific installation requirements. See Figure 3 on Page 8 for firebox dimensions. The framing
headers may rest on the top of the firebox standoffs. Do not bring headers below top of standoffs.
The firebox may be installed directly on a combustible floor or raised on a platform of an appropriate height. When the
firebox is installed directly on carpeting, tile, or other combustible material, other than wood flooring, the firebox shall be
installed on a metal or wood panel extending the full width and depth of the enclosure.
Do not fi ll spaces around fi rebox with insulation or other materials. This could cause
a fi re.
WARNING
1/2” or 5/8”
H
C
A
E
Corner Installation
A 331/2" 371/2"
D
F
B 371/4" 407/8"
C 281/4" 291/4"
D 141/8" 131/2"
E 5511/16" 607/8"
F 2713/16" 307/16"
G 133/4" 161/2"
H 393/8" 431/16"
300 400
C
G
A
Inside Chase Installation
1/2” or 5/8”
C
B
G
A
Stud Location
Figure 2 - Framing Dimensions
54D5031 7
A
1/2” or 5/8”
PRE-INSTALLATION INFORMATION
E
I
FIREPLACE DIMENSIONS
H
D
A
N
K
L
C
F
G
⅝"
½"
I
J
O
M
B
Figure 3 - Fireplace Dimensions
Key
DESCRIPTION
Overall Front Width A 331/16"37
Inside Width B 297/8" 32"
Glass Width C 27" 29"
CTR Pipe Rear L/R D 161/2"18
Rear Width E 28" 29"
Glass Height F 18" 203/8"
Total Height G 337/8"40
Depth H 15" 18
Letter HBDV300 HBDV400
1
/16"
1
/2"
5
/8"
1
/4"
½"
⅝"
3½"
8¼"
Key
DESCRIPTION
Letter HBDV300 HBDV400
Height to Standoffs I 37" 405/8"
CTR Pipe Height Rear J 295/8"33
Top Face K 21/8"1
Side Face L 11/2"2
Bottom Face M
15
/16"
Non-combustible N 51/4"6
Chassis Height O 333/4"37
1
/8"
1
/4"
1
/2"
15
/16"
1
/8"
1
/2"
8 54D5031
PRE-INSTALLATION INFORMATION
FIREPLACE LOCATION
Plan for the installation of your appliance. This includes determining where the unit is to be installed, the vent configuration
to be used, framing and finishing 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 inspections.
The following factors should be taken into consideration:
• Clearance to side-wall, ceiling, woodwork, and windows. Minimum clearances to combustibles must be maintained.
• This fireplace may be installed along a wall, across a corner, or use an exterior chase. See Figure 4 for suggested locations.
• Location should be out of high traffic areas and away from furniture and draperies due to heat from appliance.
• Never obstruct the front opening of the fireplace.
• Do not install in the vicinity where gasoline or other flammable liquids may be stored.
• Vent pipe routing. See Venting section found in this manual for allowable venting configurations.
• 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 specific installation requirements.
A Flat on Wall
B Cross Corner
C Island**
E
Y
A
B
D Room Divider*
E Flat on Wall Corner*
C
X
F Chase Installation
Y 4" Minimum
D
Y
F
Figure 4 - Locating Gas Fireplace
** 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 Confi guration on pages 18 and 19.
* When you install your fi replace in (D) room divider or (E) fl at on wall corner positions (Y), a minimum of 6"
clearance must be maintained from perpendicular wall and front of fi replace.
54D5031 9
L
CLEARANCES
CLEARANCES TO COMBUSTIBLES
Follow these instructions carefully to ensure safe installation. Failure to follow
in struc tions exactly can create a fi re hazard.
The appliance cannot be installed on a carpet, tile or other combustible material other
than wood fl ooring. If installed on carpet or vinyl fl ooring, the appliance shall be installed
on a metal, wood or noncombustible material panel ex tend ing full width and depth of
WARNING
the appliance.
71"Minimum
12" Minimum
All mantel shelves, regardless of depth, should be a minimum of 12" from top opening of fireplace. Mantel shelf
shall not exceed 12" maximum depth at 12" minimum
height from opening.
NOTE
0"–12"
Maximum
Depth
STUD
COMBUSTIB
MATERIAL
AREA
45°
Minimum 4"
From Both
Side Walls
Figure 5 - Clearances
MANTEL CLEARANCES
FIREPLACE
WALL
1"
1.5"
1.5"
2.5"
2.5"
2.5"
3"
4"
Figure 5a - 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.
10 54D5031
SECURING FIREPLACE TO FLOOR OR FRAMING
The fireplace must be secured to the floor and/or to framing studs as shown in Figure 5. Use two (2) wood screws or masonry/
concrete screws to secure fireplace to the floor. Use four (4) screws to attach fireplace to framing. The side nailing flanges
are 1/2" or 5/8" to accommodate different wall thickness.
DO NOT REMOVE
Framing
Screws
Nail
Flange
WARNING
INSULATION BOARD
Insulation
Board
Screws
Screws
Nail
Flange
Screws
Screws
Figure 6 - Securing Fireplace to Floor and Framing Studs
54D5031 11
INSTALLATION INFORMATION
FINISHING MATERIAL
NOTE: Any remote wiring (i.e. remote control, wall switch, and optional fan) must be done prior to fi nal
fi nishing to avoid costly reconstruction.
Never obstruct or modify the air inlet or outlet grills (louvers). This may create a
fi re hazard.
WARNING
Only noncombustible materials (i.e. brick, tile, slate, steel, or other materials with a UL fire 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 finished wall and the fireplace surround are sealed, a 300°F minimum sealant material (General
Electric RTV103 or equivalent) must be used.
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 fireplace manual and vent kit instructions.
Only a qualified 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 modification of the venting system.
• Installation of any component part not manufactured or approved by MHS.
• Installation other than permitted by these instructions.
12 54D5031
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 of 3" clearances to
combustibles at the top of the flue and 1" clearance at the sides and bottom until
the flue penetrates the outside wall. A minimum 1" clearance all around the flue is
acceptable at this point of penetration.
Vertical sections of this vent system require a minimum of 1" clearance to combustibles
WARNING
on all sides of the pipe.
WARNING
A Minimum of 3" Clearance
to the Top Is Required Along
Horizontal Length until Flue
Pipe Penetrates Outside Wall.
3"
A Minimum 1" Clearance to
Combustibles Permitted All
Around Flue at Outside Wall
1"
1"
3"
1"
1"
1"
Figure 7 - Combustible Clearances for Vent Pipe
54D5031 13
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 configuration the
appliance can be converted by following the steps below.
NOTE: REMOVE AND DISCARD TOP BOX AND
INSULATION ON TOP OF THE UNIT BETWEEN
THE STAND-OFFS. THIS BOX IS ONLY UTILIZED
WITH REAR-VENT APPLICATIONS.
When removing and refitting the plates and adapter be sure the
associated gaskets are undamaged and refitted as required.
1. Remove the eight (8) screws securing the flue pipe adapter
to the fireplace body. See Figure 9.
2. Set the flue pipe adapter aside, complete with the gasket.
Do not damage the gaskets as the adapter and gasket must
be refitted.
3. Remove the eight (8) screws securing the flue pipe cover to
the top of the intake box and remove the cover and gasket.
See Figure 9.
4. Remove the six (6) screws securing the flue pipe to the
back of the intake box and remove the pipe and gasket. See
Figure 10.
After conversion to top vent
confi guration the 4" (100mm) fl ue pipe
should be concentric within the 6
1
(175mm) outer collar (within
/4").
WARNING
5
/8"
5. Replace flue pipe to top of firebox. Ensure the gasket is
in place and undamaged. Secure with six (6) screws. See
Figure 11.
6. Place the flue pipe cover and gasket removed in step 3 over
the flue opening in back of the intake box.
7. Refit the flue pipe adapter and gasket to the top of fireplace. Secure the adapter with eight (8) screws removed in
step 1.
Flue Pipe
Cover
Flue Pipe
Adapter
Screws
Flue Cover
Flue Pipe
HBDV300 HBDV400
Figure 8 - Removing top box and insulation
Screws
Screws
Flue Pipe
Figure 9 - Removing Screws from Flue
Pipe Adapter and Flue Pipe Cover
14 54D5031
Figure 10 - Removing
Flue Pipe
Figure 11 - Attaching Flue Pipe to
Top Vent Confi gurations
INSTALLATION PLANNING
VENT INSTALLATION
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
termination.
You may use up to three 90° elbows in this vent configuration. See Horizontal Termination Configurations on pages 20 and
21.
FOR VERTICAL TERMINATION
Measure the distance from the fireplace floor to the ceiling. Add the ceiling thickness, the vertical rise in an attic or second
story, and allow for sufficient 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, firestops are required at each floor level. If an offset is needed in the attic, additional pipe and
elbows will be required.
Never run the vent pipe level or
downward. This may cause excessive
temperatures which could cause
a fi re.
WARNING
1
/4" rise for every 12" of run towards the
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 flue gas exhaust.
Certain limitations apply to vent configurations 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.
Treatment of fi restops 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
54D5031 15
VENT INSTALLATION
Inside Corner Detail FOR HORIZONTAL TERMINATION
G
V
H
D
E
B
L
Vent Terminal Air Supply Inlet Area Where Terminals Not Permitted
V
C
Fixed
V
Closed
F
Operable
V
B
A
BB
B
Opera-
ble
V
A
V
Fixed
Closed
J
V
A
B
Figure 12 - Horizontal Vent Termination Location
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]
= Vertical clearance to ventilated soffit located above the terminal within a horizontal distance of two (2) feet (610mm)
D
from the centerline of the terminal [18" (457mm) minimum].
E = Clearance to unventilated soffits [12" (305mm) minimum]. Clearance to vinyl soffit [30" (762mm)].
F = Clearance to an outside corner. See Figure 12.
G = Clearance to an inside corner. See Figure 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. See Figure 13, page 17. [For Canada *12" (305mm)
***
minimum
].
* 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.
A
G
I
M
V
A
K
A
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 (1" required). A
1" minimum clearance all around the pipe must be maintained at outside wall and on
vertical runs. Do not pack the open air spaces with insulation or other materials. This
WARNING
could cause high temperatures and may present a fi re hazard.
16 54D5031
TERMINATION CLEARANCES FOR BUILDINGS WITH COMBUSTIBLE
AND NONCOMBUSTIBLE EXTERIORS
VENT INSTALLATION
G G=6" (152mm)
V
Inside Corner
V
F
Outside Corner
F=6" (152mm)
H
G
V
Combustible &
G = Combustible 24"(610mm)
Noncombustible 18"(457mm)
Balcony with No Side Wall Balcony with Perpendicular
Noncombustible
H = 24" (610mm)
J = 20" (508mm)
V
J
Side Wall
Figure 13 - 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 fireplace in
accordance with same.
Example: If the vertical dimension from the fl oor of the
fi replace is 1 1' (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 fl oor of the unit
is 7’ (2.14m), the horizontal run to the face of the outer
wall must not exceed 8
Sidewall Vent Graph showing the relationship between vertical and
horizontal dimensions for a Direct Vent flue system.
1
/2' (2.6m).
D
C
C
V
E
C =Maximum depth of 48" (1219mm)
for alcove location
D =Minimum width for back wall of
alcove location
Combustible - 38" (965mm)
Noncombustible - 24" (610mm)
E = Clearance from corner in alcove
location
Combustible - 6" (152mm)
Noncombustible - 2" (51mm)
Alcove Location
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
Horizontal Dimension From the Outside of
Termination to the Back of the Fireplace
Dimensions in
Feet
eg: A
2 4 6 8 10 1214 16 1820
Vertical Dimension From the Floor of Unit to the Center of the
Horizontal Vent Pipe
Figure 13 - Rear Wall Venting Graph
54D5031 17
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