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 certified kit is used.
In the Commonwealth of Massachusetts:
• Installation must be performed by a licensed plumber or
gas fitter;
• See Table of Contents for location of additional Commonwealth of Massachusetts requirements.
A French manual is available upon request. Order P/N 850,026CF
Ce manuel d’installation est disponible en francais, simplement
en faire la demande. Numéro de la pièce 850,026CF.
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 flammables or liquids in the vicinity of
this or any other appliance.
FOR YOUR SAFETY: What to do if you smell gas:
• DO NOT light any appliance.
• DO NOT touch any electrical switches.
• Do not use any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow your gas suppliers
instructions.
• If your gas supplier cannot be reached, call
the fire department.
Installation and service must be performed by
a qualified installer, service agency or the gas
supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN
SUIVRE LES INSTRUCTIONS DONNÉ DANS CETTE
NOTICE POUR RÉDUIRE AU MINIMUM LE RISQUE
D'INCENDIE OU POUR ÉVITER TOUT DOMMAGE
MATÉRIEL, TOUTE BLESSURE OU LA MORT.
POUR VOTRE SÉCURITÉ: Ne pas entreposer ni
utiliser d'essence ni d'autre vapeurs ou liquides
inflammables dans le voisinage de cet appareil ou
de tout autre appareil.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez
une odeur de gaz:
• Ne pas tenter d'allumer d'appareil.
• Ne touchez à aucun interrupteur. Ne pas vous
servir des téléphones se trouvant dans le batiment où vous vous trouvez.
• Evacuez la piéce, le bâtiment ou la zone.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions du
fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le service dos incendies.
OTL Report No. 116-F-22-5
L'installation et service doit être exécuté par un
qualifié installeur, agence de service ou le fournisseur de gaz.
The assembled vented gas fireplace is packaged with:
1 - one envelope located in the firebox contain
ing the literature package, which consists of
the Care and Operation Manual, Installation
Instructions, Log Placement Guide and
Warranty
2- A bag of glowing embers and Lava Rock
3 - one of the following brick liner kits:
a. Brick Liner Kit, Rustic
b. Brick Liner Kit, Herringbone
c. Brick Liner Kit, Old Cottage
d. Brick Liner Kit, Black.
e. Brick Liner Kit, Red Rustic
f. Brick Liner Kit, Red Herringbone
4 - one of the following log sets:
a. Birch Log set
b. Oak Log set
5 - pull screen
6 - door modesty shield
INTRODUCTION
These vented gas fireplaces are sealed combustion gas fireplaces designed for residential
applications. These appliances must be installed
with the Secure Vent™ vent systems routed to
the outside atmosphere.
Millivolt appliances are designed to operate on
natural or propane gas. A millivolt gas control
valve with piezo ignition system provides safe
and efficient operation.
Electronic appliances are designed to operate
on natural gas or propane. An electronic intermittent pilot ignition system provides safe,
efficient operation. External electrical power is
required to operate these units.
The 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.
-
DO NOT ATTEMPT TO ALTER OR MODIFY
THE CONSTRUCTION OF THE APPLIANCE OR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,
CERTIFICATION AND LISTINGS OF THIS
UNIT.
GENERAL INFORMATION
Note: Installation and repair should be performed by a qualified service person. The appliance should be inspected annually by a qualified
professional service technician. More frequent
inspections and cleaning may be required due to
excessive lint from carpeting, bedding material,
etc. It is imperative that the control compartment, burners and circulating air passage ways
of the appliance be kept clean.
S'assurer que le brùleur et le compartiment des
commandes sont propres. Voir les instructions
d'installation et d'utilisation qui accompagnent
l'appareil.
Provide adequate clearances around air openings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
TYPICAL INSTALLATION
This installation manual will help you obtain a
safe, efficient, dependable installation for your
appliance and vent system.
Please read and understand these
instructions before beginning your
installation.
2
These appliances comply with National Safety
Standards and are tested and listed by OMNITest Laboratories (Report No. 116-F-22-5)
to ANSI Z21.50 (in Canada, CSA-2.22), and
CAN/CGA-2.17-M91 in both USA and Canada,
as vented gas fireplace.
Both millivolt and electronic versions of
these appliances are listed by OMNI-Test
Laboratories for installation in bedrooms and
mobile homes.
The Installation must conform to local codes or,
in the absence of local codes, with the National
Fuel Gas Code, ANSI Z223.1/NFPA 54 - latest
edition, or the Natural Gas and Propane Instal-
lation Code, CSA B149.1.
Figure 1
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
These appliances are designed to operate on
natural or propane gas only.
Millivolt Models -
Millivolt models come standard with the manually-modulated gas valve; flame appearance and
heat output can be controlled at the gas valve.
Input of millivolt models is shown in the following table:
Millivolt Models with
Manually-Modulated Gas Valve
Model No.Input (BTU/Hr)
Natural Gas
LSM40MN-240,000 to 50,000
LSM45MN-247,000 to 60,000
Propane Gas
LSM40MP-240,000 to 50,000
LSM45MP-248,000 to 60,000
Table 1
Electronic Models -
Electronic models have a manually modulated
gas valve. Input of electronic models is shown
in the following table:
Electronic Models with
Manually-Modulated Gas Valve
Model No.Input
(BTU/Hr)
Natural Gas
LSM40EN-240,000 to 50,000
LSM45EN-247,000 to 60,000
Propane Gas
LSM40EP-2*40,000 to 50,000
LSM45EP-2*48,000 to 60,000
Table 2 * If field converted to propane
All Models -
Maximum manifold pressure is 3.5 in. w.c. (0.87
kPa) for natural gas and 10 in. w.c. (2.49 kPa)
for LP/Propane gas.
Installations at altitudes of 0 to 4500 ft.Units are tested and approved for elevations
of 0 to 4500 feet (0 to 1372 meters).
Installations at altitudes above 4500 ft.For elevations above 4500 feet (1372 meters),
install the unit according to the regulations of
the local authorities having jurisdiction and,
in the USA, the latest edition of the National
Fuel Gas Code (ANSI Z223.1) or, in Canada,
the latest edition of the CAN1-B149.1 and
.2 codes.
Table 3 shows the gas orifice size required
for the elevations indicated.
ModelOrifice SizeElevation
Nat.Prop.
LSM40-2.1405"
(#28)
LSM45-2.161"
(#20)
Feet (meters)
.086"
(#44)0-4500
.093"
(0-1372)
(#42)
Table 3
The millivolt appliances are manually controlled
and feature a spark igniter (piezo) that allows the
appliance's pilot gas to be lit without the use of
matches or batteries. This system provides continued service in the event of a power outage.
Do not use these appliances if any part has
been under water. Immediately call a qualified,
professional service technician to inspect the
appliance and to replace any parts of the control
system and any gas control which have been
under water.
Ne pas se servir de cet appareil s'il a été plongé
dans l'eau, complètement ou en partie. Appeler
un technicien qualifié pour inspecter l'appareil et
remplacer toute partie du système de contrôle
et toute commande qui ont été plongés dans
l'eau.
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 certified kit is used.
Cet appareil peut être installé dans un maison
préfabriquée (É.-U. seulement) ou mobile
déjà installée à demeure si les réglements
locaux le permettent.
Cet appareil doit être utilisé uniquement
avec les types de gaz indiqués sur la plaque
signalétique. Ne pas l'utiliser avec d'autres
gaz sauf si un kit de conversion certifié est
installé.
Test gauge connections are provided on the
front of the millivolt and electronic gas control
valve (identified IN for the inlet and OUT for the
manifold side).
Minimum inlet gas pressure to these appliances
is 5.5 inches water column (1.37 kPa) for natural
gas and 11 inches water column (2.74 kPa) for
propane for the purpose of input adjustment.
Maximum inlet gas supply pressure to these
appliances is 10.5 inches water column (2.61
kPa) for natural gas and 13.0 inches water
column (3.23 kPa) for propane.
These appliances must be isolated from the
gas supply piping system (by closing their
individual manual shut-off valve) during any
pressure testing of the gas supply piping
system at test pressures equal to or less than
1/2 psig (3.5 kPa).
These appliances and their individual shut-off
valves must be disconnected from the gas supply piping system during any pressure testing
of that system at pressures in excess of 1/2
psig (3.5 kPa).
These appliances must not be connected to a
chimney or flue serving a separate solid fuel
burning appliance.
Carbon Monoxide Poisoning: Early signs of
carbon monoxide poisoning are similar to the
flu with headaches, dizziness and/or nausea.
If you have these signs, obtain fresh air immediately. Have the appliance serviced by a
qualified technician as it may not be operating
correctly. 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.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
3
New York City, New York (MEA)
Inspection
Installation of these fireplaces are approved for installation in New York
City in the US state of New York.
Requirements for the Commonwealth of Massachusetts
Note: The following requirements reference various Massachusetts
and national codes not contained in this document.
For all side wall horizontally vented gas fueled equipment installed in every
dwelling, building or structure used in whole or in part for residential
purposes, including those owned or operated by the Commonwealth and
where the side wall exhaust vent termination is less than seven (7) feet
above finished grade in the area of the venting, including but not limited
to decks and porches, the following requirements shall be satisfied:
Installation Of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gasfitter shall observe that a hard
wired carbon monoxide detector with an alarm and battery back-up is
installed on the floor level where the gas equipment is to be installed.
In addition, the installing plumber or gasfitter shall observe that a battery operated or hard wired carbon monoxide detector with an alarm is
installed on each additional level of the dwelling, building or structure
served by the side wall horizontal vented gas fueled equipment. It shall
be the responsibility of the property owner to secure the services of
qualified licensed professionals for the installation of hard wired carbon
monoxide detectors.
In the event that the side wall horizontally vented gas fueled equipment
is installed in a crawl space or an attic, the hard wired carbon monoxide
detector with alarm and battery back-up may be installed on the next
adjacent floor level.
In the event that the requirements of this subdivision can not be met
at the time of completion of installation, the owner shall have a period
of thirty (30) days to comply with the above requirements; provided,
however, that during said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.
The state or local gas inspector of the side wall horizontally vented gas
fueled equipment shall not approve the installation unless, upon inspection,
the inspector observes carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
Exemptions
The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
• The equipment listed in Chapter 10 entitled “Equipment Not Required
To Be Vented” in the most current edition of NFPA 54 as adopted by
the Board; and
• Product Approved side wall horizontally vented gas fueled equipment
installed in a room or structure separate from the dwelling, building
or structure used in whole or in part for residential purposes.
MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided
When the manufacturer of Product Approved side wall horizontally
vented gas equipment provides a venting system design or venting system components with the equipment, the instructions provided by the
manufacturer for installation of the equipment and the venting system
shall include:
• Detailed instructions for the installation of the venting system design
or the venting system components; and
• A complete parts list for the venting system design or venting sys
tem.
Gas Equipment Venting System NOT Provided
When the manufacturer of a Product Approved side wall horizontally
vented gas fueled equipment does not provide the parts for venting the
flue gases, but identifies “special venting systems”, the following require-
ments shall be satisfied by the manufacturer:
• The referenced “special venting system” instructions shall be included
with the appliance or equipment installation instructions; and
-
Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accordance with the
above provisions shall comply with NFPA 720 and be ANSI/UL 2034
listed and IAS certified.
Signage
A metal or plastic identification plate shall be permanently mounted to
the exterior of the building at a minimum height of eight (8) feet above
grade directly in line with the exhaust vent terminal for the horizontally
vented gas fueled heating appliance or equipment. The sign shall read, in
print size no less than one-half (1/2) inch in size, “GAS VENT DIRECTLY
BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS.”
4
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
• The “special venting systems” shall be Product Approved by the
Board, and the instructions for that system shall include a parts list
and detailed installation instructions.
A copy of all installation instructions for all Product Approved side wall
horizontally vented gas fueled equipment, all venting instructions, all
parts lists for venting instructions, and/or all venting design instructions
shall remain with the appliance or equipment at the completion of the
installation.
• Installation and repair must be done by a plumber or gas fitter licensed
in the Commonwealth of Massachusetts.
• The flexible gas line connector used shall not exceed 36 inches (92
centimeters) in length.
• The individual manual shut-off must be a T-handle type valve.
HORIZONTAL VENT
VERTICAL VENT
CROSS CORNER
APPLICA
TION
RECESSED
APPLICATION
FLA
T
APPLICA
TION
ROOM DIVIDER
APPLICA
TION
FLA
T ON W
ALL
APPLICA
TION
ISLAND
APPLICA
TION
Shelf Height
(
see table)
Do not insulate the
space between the
appliance and the
area above it.
Shelf Above Fireplace With Top Venting
2 Foot
Vertical
Vent
(Min.)
Failure to comply with the installation and operating instructions
provided in this document will
result in an improperly installed
and operating appliance, voiding
its warranty. Any change to this
appliance and/or its operating
controls is dangerous. Improper
installation or use of this appliance can cause serious injury or
death from fire, burns, explosion
or carbon monoxide poisoning.
Children and adults should be
alerted to the hazards of high
surface temperatures. Use
caution around the appliance
to avoid burns or clothing ignition. Young children should be
carefully supervised when they
are in the same room as the
appliance.
Note: An Optional Screen Door
or Screen Panel for the glass is
available (see Care and Operations Manual for ordering information).
Do not place clothing or other
flammable materials on or near
this appliance.
Surveiller les enfants. Garder les
vêtements, les meubles, l'essence
ou autres liquides à vapeur inflammables lin de l'appareil.
LOCATION
In selecting the location, the aesthetic and functional use of the appliance are primary concerns.
However, vent system routing to the exterior and
access to the fuel supply are also important.
Consideration should be given to traffic ways,
furniture, draperies, etc., due to elevated surface
temperatures (Figure 2). The location should
also be free of electrical, plumbing or other
heating/air conditioning ducting.
WARNING
WARNING
WARNING
AVERTISSEMENT
Do not insulate the space between the appliance and the area above it. See Figure 3. The
minimum height from the base of the appliance
to the underside of combustible materials used
to construct a utility shelf in this fashion is
shown in the table in Figure 3.
*Note: See Page 6, Step 1 for clearance
requirements to the nailing flange located at
each side of the unit and any screw heads
adjacent to it.
Figure 2
MINIMUM VENTING CLEARANCES
Inches (millimeters)
Vertical Sections
Sides1" (25 mm)
Horizontal Sections
Top3" (75 mm)
Bottom1" (25 mm)
Sides1" (25 mm)
Vertical Vent Applications
Sides1" (25 mm)
Table 4
APPLIANCE MINIMUM CLEARANCES*
Bottom of Appliance
Inches (millimeters)
Back1/2 (13)
0 (0) Spacers
Sides1/2 (13)
0 (0) Spacers
Top Spacers0 (0)
Floor0 (0)
To Ceiling
69 (1743)
Table 5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Typical Locations
The appliance should be mounted on a fully
supported base extending the full width and
depth of the unit. The appliance may be located
on or near conventional construction materials.
However, if installed on combustible materials,
such as carpeting, vinyl tile, etc., a metal or
wood barrier covering the entire bottom surface
must be used.
APPLIANCE AND VENT CLEARANCES
The appliance is approved with zero clearance to
combustible materials on all sides (as detailed
in Table 5), with the following exception: When
the unit is installed with one side flush with a
wall, the wall on the other side of the unit must
not extend beyond the front edge of the unit. In
addition, when the unit is recessed, the side walls
surrounding the unit must not extend beyond
the front edge of the unit. See Figure 2.
Combustible Shelf Height
Model No.
LSM40-2*84-1/16 (2135)
LSM45-289-1/16 (2252)
* Includes 3” clearance to combustibles
(required above vent components)
Inches (millimeters)
Top Vent - with 2 Feet Vertical Vent
and One 90 Degree Elbow
Secure Vent
Figure 3
5
Right Side
Front Corner
Of Fireplace
Framing
6-1/4”
(159 mm
)
19-5/8”
(498 mm
)
3"
(76 mm)
Termination Kit
Combustible Projection
greater than 2-1/2 inches in length
Horizontal Vent Termination Clearances
Combustible Projection
2-1/2 inches or less in length
24"
(610 mm)
Ventilated Or
Unventilated Soffit
Note: The nailing flanges
, combustible members
and screw heads locat
ed in areas directly ad
jacent
to the
nailing flanges, are
EXEMPT from the 1/2”
clearance to combustible requirements for th
e
firebox outer wra
pper
. Combustible framing
may be
in
direct contact with
t
he nailing flanges and
m
ay
be loca
ted closer than 1/2” fr
om screw heads and
the firebox
wrapper in areas adjace
nt to the nailing
flanges. Frame th
e
opening to the exact dimens
ions
specified in the framing det
ails of this manual.
Use T
op Flange For
1/2” Thick Dr
ywal
l
Use Bottom Flange Fo
r
5/8” Thick Dr
ywal
l
Front Of
Fireplace
Use Center Flange
For Flush Mount
Left Side Front Co
rner of Fireplace Shown
(R
ight Side Requirements the
S
ame)
Unit Being Secured By Its Nailing Flanges
To The Framing
VENT TERMINATION CLEARANCES
12
X
Roof Pitch is X/12
2 FT
MIN.
2 FT MIN.
Lowest
Discharge
Opening
H*
*H = MINIMUM HEIGHT FROM ROOF TO
LOWEST DISCHARGE OPENING OF VENT
TERMINATION HEIGHTS FOR VENTS ABOVE
FLAT OR SLOPED ROOFS
Horizontal Overhang
Vertical
Wall
Vent
Termination
Storm Collar
Concentric
Vent Pipe
Flashing
1 inch (25.4 mm) Minimum
Clearance to Combustibles
These instructions should be used as a guideline and do not supersede local codes in any
way. Install vent according to local codes,
these instructions, the current National Fuel
Gas Code (ANSI-Z223.1) in the USA or the
current standards of CAN/CGA-B149.1 and
-B149.2 in Canada.
Vertical Vent Termination Clearances
Terminate single vent caps relative to building
components according to Figure 4.
Step 1. (Page 6) Construct the appliance framing. Position the appliance within the framing
and secure with nailing brackets.
Step 2. (Page 6) Route gas supply line to the
right side of the appliance.
See Figure 27 on Page 16 for the recess allowances, into
exterior walls, of the square horizontal terminations.
Figure 5 - Side Elevation View
the appliance is to be elevated above floor
level, a solid continuous platform must be
constructed.
Headers may be in direct contact with the
appliance top spacers but must not be supported by them or notched to fit around them.
All construction above the appliance must be
self supporting, DO NOT use the appliance for
structural support.
The fireplace should be secured to the side
framing members using the unit's nailing
flanges - one top and bottom on each side of
the fireplace front. See Figure 6. Use 8d nails
or their equivalent.
The vent / air intake termination clearances
above the high side of an angled roof is as
shown in the following chart:
Termination Heights For Vents
Above Flat Or Sloped Roofs
Ref. NFPA 54 / ANSI Z223.1, 7.6
Roof Pitch* Feet* Meters
Flat to 6/121.00.3
6/12 to 7/121.250.38
7/12 to 8/121.50.46
8/12 to 9/122.00.61
9/12 to 10/122.50.76
10/12 to 11/123.250.99
11/12 to 12/124.01.22
Figure 4
Terminate multiple vent terminations according to the installation codes listed at the top
of thisPage.
Horizontal Vent Termination Clearances
The horizontal vent termination must have
a minimum of 3" (76 mm) clearance to any
overhead combustible projection of 2-1/2" (64
6
mm) or less. See Figure 5. For projections
exceeding 2-1/2" (64 mm), see Figure 5. For
additional vent location restrictions refer to
Figure 8 on Page 7.
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation follows,
however, each installation is unique resulting
in variations to those described.
See the Page numbers references in the following steps for detailed procedures.
(Page 10) Install the vent system and
Step 3.
exterior termination.
Step 4. (Page 19) Field Wiring
a. Millivolt and Electronic Appliances –The
operating control switch is factory installed.
b. Electronic Appliances – Connect 120 Vac
electrical power to the appliance receptacle.
Step 5. (Page 20) Remove glass door frame
assembly.
Step 6. (Page 20) Make connection to gas
supply.
Step 7. (Page 20) Install ceramic panels, logs
and glowing embers.
Route a 1/2" (13 mm) gas line along the inside
of the right side framing as shown in Figure
7. Gas lines must be routed, constructed and
DETAILED INSTALLATION STEPS
The appliance is shipped with all gas controls
and components installed and pre-wired.
Remove the shipping carton, exposing the
front glass door. Using a Phillips screwdriver,
made of materials that are in strict accordance
with local codes and regulations.
All appliances are factory-equipped with a
flexible gas line connector and 1/2 inch shutoff
valve. (See Step 5 on Page 20).
unfasten two (2) screws located at the top of the
glass frame (see Figure 37). Tilt the top of the
glass frame away from the unit. Lift it carefully
off the bottom door track and set the door aside,
protecting it from inadvertent damage.
Step 1. FRAMING
Frame these appliances as illustrated in Figure
9 on Page 8, unless the appliance is to be installed in a corner. See Figure 10 on Page
8 for corner framing installations. All framing
details must allow for a minimum clearance to
combustible framing members as shown in
C = Clearance to permanently closed window12 inches (305 mm) to prevent window condensation9 inches (229 mm) recommended to prevent window
12 inches (30 cm) *12 inches (30 cm) **
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
12 in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and <
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances
> 100,000 BTU/hr (30kW)*
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW),
9 in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <
50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances
> 50,000 BTU/hr (15kW)*
condensation
D = Vertical clearance to ventilated soffit located
24 inches (61.0 cm)24 inches (61.0 cm)
above the terminal within a horizontal distance of 36
in. (91.4cm) from the center line of the terminal
E = Clearance to unventilated soffit24 inches (61.0 cm)24 inches (61.0 cm)
F = Clearance to outside corner5 inches (12.7 cm)5 inches (12.7 cm)
G = Clearance to inside corner36" (91.4 cm)24 inches (61.0 cm)
H = Clearance to each inside of center line extended
above meter / regulator assembly
3 feet (91 cm) within a height of 15 feet above the meter /
regulator assembly *
3 feet (91 cm) within a height of 15 feet above the meter
/ regulator assembly **
I = Clearance to service regulator vent outlet3 feet (91 cm) *3 feet (91 cm) **
J = Clearance to non-mechanical air supply inlet
to building or the combustion air inlet to any other
appliance
K = Clearance to mechanical air supply inlet6 feet (1.83 meters) *3 feet (91 cm) above, if within 10 feet (3 m) horizon-
L = Clearance above paved sidewalk or paved
driveway located on public property
M = Clearance under veranda, porch, deck or
balcony
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 12
in. (30 cm) for appliances > 10,000 BTU/hr (3kW) and <
100,000 BTU/hr (30kW), 36 inches (91 cm) for appliances
> 100,000 BTU/hr (30kW)*
6 in. (15.2 cm) for appliances < 10,000 BTU/hr (3kW), 9
in. (23 cm) for appliances > 10,000 BTU/hr (3kW) and <
50,000 BTU/hr (15kW), 12 inches (30 cm) for appliances
> 50,000 BTU/hr (15kW)*
7 feet (2.13 m) ‡7 feet (2.13 m) ‡
18 in. (46.0 cm) * ‡18 in. (46.0 cm) ** ‡
tally**
* In accordance with the current CSA-B149.1 National Gas and B149.2 Propane Installation Code - Latest Editions.
** In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Codes - Latest Edition.
‡ A vent shall 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 2 sides beneath the floor.
Figure 8
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
7
C
Back wall of chase/enclosure
(including any finishing materials)
D
A
B
FIREPLACE FRAMING SPECIFICATIONS
A
B
C
8-1/2
(216)
13
(
330
)
VENT FRAMING
-
TOP VENT WITH 2 FEET
VERTICAL VENT AND
ONE 90° ELBOW