Lennox Hearth Products C42 User manual

Report No.050-S-08c-5
INSTALLATION AND OPERATION MANUAL
WARNINGS
• Hot! Do not touch! The glass and surfaces of this appliance will be hot during operation and will
retain heat for a while after shutting off the appliance. Severe burns may result.
• Carefully supervise children in the same room as appliance. If small children are present in the home, it
is recommended that this appliance be fitted with a screen door. See Page 37 for ordering information.
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any other
appliance.
WHAT TO DO IF YOU SMELL GAS:
• Do not 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 your gas supplier's
instructions.
• If your gas supplier cannot be reached, call
the fire department.
Installationandservicemustbeperformedbyaquali-
fied installer, service agency or the gas supplier.
Ne pas entreposer ni utiliser d’essence ou d’autres produits ou
liquides inflammables à proximité de cet appareil ou de tout
autre appareil de chauffage.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d’allumer l’appareil.
• Ne pas toucher aux interrupteurs électriques; ne pas utiliser
un téléphone dans le bâtiment.
• Aller immédiatement chez un voisin pour téléphoner au
fournisseur du gaz et suivre leurs instructions.
• Si le fournisseur de gaz n’est pas disponible, appeler les
pompiers.
L’installation et l’entretien doivent être assurés par un instal-
lateur certifié, une société de service spécialisée
ou le fournisseur de gaz.
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.
AVERTISSEMENT : S’assurer de bien suivre les instruc-
tions données dans ce guide pour minimiser les risques
d’incendie ou d’explosion pouvant entraîner des dom-
mages matériels, des blessures ou la mort.
• These appliances may be installed in an aftermarket permanently located, manufactured (mobile) home (USA
only), 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.
• Lennox Hearth Products gas-burning appliances are designed for use as a supplemental heater. They are not
intended for continuous use as a primary heat source.
Ravelle™ 42 (RAVL42)
In the Commonwealth of Massachusetts:
• Installation must be performed by a licensed plumber or gas tter
• See Table of Contents for location of additional Commonwealth of
Massachusetts requirements
TM
US
Portland
DRAFT
8/01/08(2)
Direct-Vent
Gas Fireplace
Retain These Instructions For Future Reference
A French manual is available upon request. Order P/N 775,219CF.
Ce manuel d’installation est disponible en francais, simplement
en faire la demande. Numéro de la pièce 775,219CF.
P/N 775,219M Rev. B, 08/2008
Chateau 42
Direct Vent Gas Fireplace Model C42
Installer: This Manual Must Stay With Appliance !
Manufactured by:
Country Stoves Inc.
PO Box 959
Auburn,WA 98071
NG 42,000 BTU
LP 36,000 BTU
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!
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 neighbors phone. Follow your gas suppliers instructions.
* If you cannot reach your gas supplier, call the fire department.
Installation and service must be performed by a qualified installer, service agency or the gas supplier.
This appliance may be installed in an aftermarket permanently located manufactured (mobile) home,
where NOT prohibited by law.
This appliance is only for use with the type of gas indicated on the rating plate.
This appliance is NOT convertible for use with any other gases, unless a certified kit is used.
Do NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.

2
FOR YOUR SAFETY do not install or operate your
Ravelle™ 42 gas fireplace without first reading and
understandingthis manual.Anyinstallationoroperation
of the appliance deviating from that which is stated in
this manual WILL void the warranty and may be hazard-
ous.
INSTALLATION ANDREPAIR SHOULDONLY BE DONEBY
A QUALIFIED SERVICE TECHNICIAN. DO NOT ATTEMPT
TO SERVICE THE APPLIANCE YOURSELF.
The fireplace should be inspected and cleaned before
use and at least annually by a qualified service techni-
cian. More frequent cleaning may be required due to
excessive lint from bedding material, carpeting, etc.
It is imperative that control compartments, burners and
circulating air passageways of the room heater be kept
clean.
Adequate clearances around the combustion chamber
and accessibility clearances for servicing and proper
operation must be maintained.
Turn off the gas before servicing this appliance. It is
recommended that a qualified service technician per-
form an appliance check-up at the beginning of each
heating season.
All installations must conform with all local, state
and national codes. In the absence of local codes, the
installation must conform with National Fuel Gas Code
ANSI Z223.1-latest edition, also known as NFPA 54
(In Canada, the current CAN/CSA B149.1 installation
code). Refer to the National Fuel Gas Code and local
zoning and code authorities for details on installation
requirements. Your Ravelle 42 gas fireplace must be
vented to the outside in accordance with the latest
edition of the National Fuel Gas Code.
Thisgasfireplace MUSTbeventeddirectlytotheoutside
and MUST NEVER be attached to a chimney serving a
separate solid fuel burning appliance. Each gas appli-
ance MUST USE a separate vent system. Common vent
systems are PROHIBITED.
Mobilehomeinstallationsmustconformwith theMobile
Home Construction and Safety Standard, Title 24 CFR,
Part 3280 (in Canada CAN/CSA Z240 MH), or, when such
a standard is not applicable, the Standard for Mobile
Home Installations, ANSI A225.1 - latest edition.
The appliance, when installed, must be electrically
grounded in accordance with local codes or in the ab-
sence of local codes, with the National Electrical Code,
ANSI/NFPA 70 - latest edition. In Canada, the current
CSA C22-1 Canadian Electrical Code - latest edition.
Do not make any make-shift compromises during in-
stallation. Any modification or alteration may result
in damage to the appliance or dwelling and will void
the warranty, certification and listings of this unit.
Failure to use manufacturer provided parts, variations
in techniques and construction materials or practices
other than those described in this manual may create
a fire hazard and void the limited warranty.
Your Lennox Hearth Products gas fireplace must be
equipped for the proper fuel type and altitude at which
it will be operated. Any operation outside the param-
eters outlined in this manual may result in a hazardous
condition and will void the warranty. Please carefully
read the sections pertaining to these subjects and/or
be sure your appliance is properly equipped.
Do not use this fireplace if any part has been under
water. Immediately call a qualified service technician
to inspect the appliance and to replace any part of the
control system and any gas control which has been
under water.
Due to high temperatures, the fireplace should be lo-
cated out of traffic areas 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 carefully supervised when they are in the same room
as the Lennox Hearth Products gas fireplace. Clothing
or any other flammable material should not be placed
on or near the fireplace.
Never use solid fuels such as wood, paper, cardboard,
coal, or any flammable liquids, etc., in this appli-
ance.
Any grill, panel, or glass removed for service MUST be
replaced prior to operating the fireplace. Do not oper-
ate appliance with the glass front removed, cracked or
broken. Replacement of the glass should be done by a
qualified service technician.
DO NOT USE abrasive cleaner on the glass door as-
sembly. DO NOT ATTEMPT to clean the glass door when
it is hot.
Gold and nickel plated surfaces must be cleaned with
glass cleaner and a clean soft cloth before firing the first
timeorfingerprintswillremain permanently.NEVERuse
brass polish to clean gold or nickel, this will remove
the plating!!!
Lennox Hearth Products, its employees, or any of its
representatives assume no responsibility for any dam-
ages caused by an inoperable, inadequate, or unsafe
condition as a result of any improper operation, service
or installation procedures, whether direct or indirect.
INSTALLER: THESE INSTRUCTIONS ARE TO REMAIN
WITH THE HOME OWNER!
IMPORTANT SAFETY AND WARNING
INFORMATION

3
CONGRATULATIONS ON THE PURCHASE OF YOUR NEW
GAS APPLIANCE MANUFACTURED BY LENNOX HEARTH
PRODUCTS.
When you purchased your new gas fireplace, you joined the ranks of
thousands of individuals whose answer to their home heating needs
reflects their concern for efficiency and our environment. We extend
our continued support to help you achieve the maximum benefit and
enjoyment available from your new gas fireplace. It is our goal at Lennox
Hearth Products to provide you, our valued customer, with an appliance
that will ensure years of trouble-free warmth and pleasure.
Thank you for selecting a Lennox Hearth Products gas fireplace as the
answer to your supplemental home heating needs.
Sincerely, All of us at Lennox Hearth Products
TABLE OF CONTENTS
Cautions and Safety ........................................................ 2
Orifice Size/Altitude Adjustment.......................................... 4
Codes and Approvals....................................................... 5
New York City, New York (MEA) .......................................... 5
Commonwealth of Massachusetts Requirements...................... 5
Pre-Installation............................................................ 6-7
Features ............................................................ 6
Venting.............................................................. 6
Fuel.................................................................. 6
Packaging List ..................................................... 6
Specifications...................................................... 6
Preparing your Fireplace for Installation ......................... 7
Clearances to Combustibles..................................... 7
Installation............................................................... 8-13
Framing Dimensions ............................................. 8
Fireplace Dimensions ............................................ 9
Raised Installations ............................................. 10
Hearth Extension Considerations .............................. 10
Facing Installation Considerations ............................ 11
Face Installation ................................................. 13
Vent Installation ....................................................... 14-20
Application ........................................................ 14
Vent Parts List .................................................... 15
Vent Considerations ............................................. 16
Horizontal Vent Installation..................................... 17
Vertical Vent Installation........................................ 17
Flue Restrictors .................................................. 18
Vertical Vent Termination Clearances ........................ 18
Horizontal Terminations......................................... 19
Vertical Terminations............................................ 19
Horizontal Vent Termination Clearances ..................... 20
Brick Panel and Log Set Installation.................................... 21
Electrical Connections .................................................... 22
Gas Line Installation ...................................................... 23
Gas Pressure Requirements.................................... 23
LP and Natural Gas Supplies................................... 23
Increasing Efficiency And Hot Air Movement .......................... 24
Forced Air Heating Installation ...................................... 25-28
Operating Instructions ................................................ 29-32
Pre-Lighting Checklist........................................... 29
Lighting Instructions............................................. 29
Flame Color and Behavior ...................................... 30
Air Shutter Adjustment .......................................... 31
Paint Curing....................................................... 31
Quiet Operation................................................... 31
Blower Operation................................................. 31
Optional Wall Thermostat....................................... 31
Operating Options................................................ 32
Millivolt Control System ........................................ 32
Maintenance and Servicing .......................................... 33-34
Maintenance Checklist .......................................... 33
Vent Pipe Maintenance.......................................... 33
Opening and Removing Door................................... 34
Glass/Door Maintenance........................................ 34
Blower Removal.................................................. 34
Fuel Conversion .................................................. 34
Troubleshooting ............................................................ 35
Replacement Parts ........................................................ 36
Accessories............................................................. 36-37
Fireplace Labels ....................................................... 38-39
Product Reference Information .......................................... 40
USING THIS MANUAL
Please read and carefully follow all of the instructions found in this
manual. Please pay special attention to the safety instructions provided
in this manual.
PRODUCT IS SUBJECT TO CHANGE WITHOUT NOTICE

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
For altitudes above 2,000 feet (In Canada 4,500 FT/1370 M),the orifice
should be de-rated by 4% for every 1,000 feet to maintain the proper
ratio of gas to air. Improper orifice sizing may result in damage and
unsafe conditions. Changing the orifice should only be done by a quali-
fied service technician. Contact your Lennox Hearth Products dealer for
proper orifice sizes.
4
ORIFICE SIZE/ALTITUDE ADJUSTMENT
Since there are always several potential sources of fire in any home, we
recommend installing smoke detectors. If possible, install the smoke
detector in a hallway adjacent to the room (to reduce the possibility of
occasional false activation from the heat produced by the appliance). If
your local code requires a smoke detector be installed within the same
room, you must follow the requirements of your local code. Check with
your local building department for requirements in your area.
SMOKE DETECTORS
• Must conform with all local, state and national installation codes.
In the absence of local codes, the installation must conform with
National Fuel Gas Code ANSI Z223.1 - latest edition, also known
as NFPA 54 (In Canada, the current CAN/CSA B149.1 installation
code). Refer to the National Fuel Gas Code and local zoning and
code authorities for details on installation requirements.
• Mobile home installations must conform with the Mobile Home
Construction and Safety Standard, Title 24 CFR, Part 3280 (in Canada
CAN/CSA Z240 MH), or, when such a standard is not applicable,
the Standard for Mobile Home Installations, ANSI A225.1 - latest
edition.
• Must be vented directly to the outside in accordance with the latest
edition of the National Fuel Gas Code and must never be attached
to a chimney serving a separate solid fuel burning appliance.
• Has been certified for use with either natural gas or propane.
• Is not for use with solid fuels.
• Is approved for sitting rooms and/or bedrooms.
THE RAVELLE™ 42 FIREPLACE

5
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
(NYC MEA Approval #138-07-E)
Installation of these fireplaces are approved for installation in New York
City in the US state of New York.
(Massachusetts Approval #G3-1104-102)
These fireplaces are approved for installation in the US state of Mas-
sachusetts if the following additional requirements are met:
• Install this appliance in accordance with Massachusetts Rules and
Regulations 248 C.M.R. Sec. 5.08 2(a) through 2(e).
• 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.
Massachusetts Horizontal Vent Requirements
In the Commonwealth of Massachusetts, horizontal terminations installed
less than seven (7) feet above the finished grade must comply with the
following additional requirements:
• A hard wired carbon monoxide detector with an alarm and battery
back-up must be installed on the floor level where the gas fireplace
is installed. The carbon monoxide detector must comply with NFPA
720, be ANSI/UL 2034 listed and be ISA certified.
• A metal or plastic identification plate must be permanently mounted to
the exterior of the building at a minimum height of eight (8) feet above
grade and be directly in line with the horizontal termination. The sign
must read, in print size no less than one-half (1/2) inch in size, GAS
VENT DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS.
NEW YORK CITY, NEW YORK (MEA)
Certification
Gas appliances must be tested and certified by a nationally recognized
testing and certification laboratory to ANSI (American National Standard
Institute) gas appliance safety standards.
This fireplace has been tested and certified by OMNI -Test Laboratories to
ANSI Z21.88/CSA 2.33 Standard for Vented Gas Fireplace Heater and CGA
2.17-M91 and UL 307B Gas Burning Heating Appliances for Manufactured
(Mobile) Homes in both USA and Canada.
It has met all necessary ANSI Standards and is fully certified for installa-
tion in any community. If there are any questions or if you need further
substantiation either write to or call your Lennox Hearth Products dealer.
If you have further questions, please contact Lennox Hearth Products.
Checkall localbuildingand safetycodesbeforeinstallation. Theinstallation
instructions and appropriate code requirements must be followed exactly
and without compromise. In the absence of local codes the following
standards and codes must be followed.
CODES AND APPROVALS COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS

6
Features
Installation Options
Residential
Vented vertical and horizontal
Manufactured (mobile) home
Natural gas (NG) or propane (LP)
Bedrooms
Optional wall-mounted or remote thermostat
Ductable for greater heat distribution
Venting
This fireplace can be vented with Security™ Secure Vent™ pipe*. Coaxial
pipe diameters are 6-5/8” outer and 4” inner. The combustion air for this
fireplace is drawn from outside the house through the outer DV (direct
vent) pipe. Room air is not required for combustion.
When planning your installation, select the correct length of vent pipe
for your particular requirements. Determine the minimum clearance to
combustibles from the rear of the unit to the wall. It is also important
to note the thickness of the wall. Before cutting the vent hole through
the wall make sure that ALL vent and termination clearances (see Pages
18-20)will be met.
Electrical
The standard fan motor requires 120 Volts AC for operation. The fireplace
is not dependent on the fan or an outside electrical supply to operate.
Millivolt Valve
This fireplace is operated with a millivolt valve and therefore burns even
during a power outage.
Fuel
This fireplace comes from the factory equipped to burn natural gas at a
specified elevation. The fireplace can be converted to burn LP gas (liquid
propane) by changing the cassette (valve and pilot assembly) or installing a
conversion kit. Only Lennox Hearth Products conversion kits can be used to
convert from NG to LP or LP to NG. Contact your Lennox Hearth Products
dealer for details.
Specifications
Fireplace weight: 250 lbs
Pipe:Type - direct-vent
Recommended manufacturer*
Security™ Secure Vent™*
Diameter - 6-5/8”x 4” for vertical terminations
Diameter - 8”x 5” for horizontal terminations
Packaging List
The Ravelle™ 42 gas fireplace comes with the following parts:
1 Fireplace Body with Burner Cassette
1 Log Set
1 Bag of Ember Material
1 Installation and Operation Manual
Decorative Faces - One Required
Arch Inset
Classic Inset
Screen
Foundry™
Brick Liners - One Required
Standard Brick
Red Brick
Architectural Stone
* Other approved chimney brand is Simpson Dura-Vent DV-GS.
RATINGS
Model Ravelle 42
NATURAL GAS LP GAS
Max/Min Input BTUh 0-2,000 Feet (0-610 M)u 42,000 / 29,500 36,000 / 25,000
Manifold Pressure (IN. WC) 3.5 / 1.7 10 / 5.1
Min. Inlet Pressure (IN. WC) 5 11
Maximum heat output BTUs/hour-steady state 34,860 29,880
P4 Efficiency w 50.43% 53.47%
Orifice (DMS) 0-2,000 Feet (0-610 M)u
#30 #49
uUnit factory equipped for 0-2000 FT/0-610 M, In Canada 0-4500 FT/0-1370 M
vThe Steady State Efficiency numbers based on maximum vent configuration.
wTested to CSA P.4.1-02 “Testing Method for Measuring Annual Fireplace Efficiency.
Electrical Rating: 120 VAC, 60 HZ, Less Than 2 Amps
Ductability (optional)
Forced Air Duct Kit
Whole Home Comfort
System
PRE-INSTALLATION

Figure 1
Figure 2
7
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Preparing Your Ravelle™ 42 Fireplace For Installation
Read all instructions before beginning your installation. If instructions
have not been read carefully, your installation could void your warranty
and may create a serious fire, health, or other safety hazard.
The Lennox Hearth Products warranty will be voided if one of the fol-
lowing occurs:
• Installation of any damaged fireplace or vent system compo-
nent.
• Unauthorized modification of the direct vent system.
• Installation other than as instructed by Lennox Hearth Products,
Security™, or Simpson Dura-Vent.
• Installation of any fireplace or vent system component not manu-
factured or approved by Lennox Hearth Products, Security™ or
Simpson Dura-Vent.
When planning the installation for your Ravelle 42 gas fireplace, it’s
necessary to consider the following:
• Where the unit is to be installed
• The vent system configuration to be used
• Gas supply (NG or LP)
• Electrical wiring
• Framing and finishing
• Optional accessories
Clearances to Combustibles
Minimum clearances include any projections such as shelves, window
sills,mantels,spacers/standoffsorsurfacestocombustibleconstruction
etc. above the appliance. Paint or lacquer used to finish the mantel
must be heat resistant in order to avoid discoloration.
Minimum clearances to combustible materials in inches:
Front corners to enclosure (from stand-offs) 0 (0mm)
Rear corners to enclosure (from stand-offs) 0 (0mm)
Top to header (from stand-offs) 0 (0mm)
Bottom of unit to floor 0 (0mm)
Edge of door glass to side wall and side trim 7-1/2 (191mm)
Back to enclosure (from stand-offs) 0 (0mm)
Mantel: The drawing at the lower right shows the minimum distances
from the base of the fireplace to combustible mantel and facing material.
Combustible materials may be placed above and within the shaded areas.
If your fireplace has an arched face, the combustible mantel facing mate-
rial may curve with the arch of the face as long as a minimum distance
of 10” is maintained between the top of the face and the combustible
facing material.
Hearth Protection: Hearth protection in front of the Ravelle™ 42 gas
fireplace is not required. However, hearth protection is recommended
and will enhance the appearance of the fireplace.
Pipe Clearances: All installations using a vertical termination cap
must maintain 1” (25mm) clearance between the direct vent pipe and
combustibles. For horizontal terminations, when the top of the horizontal
run of pipe is less than 8 feet (2.4 M) above the base of the fireplace, 1”
(25mm) clearance on the sides and bottom and 5” (127 mm) on the top
of the pipe is required. For those horizontal runs at or above 8 feet, 1”
(25 mm) is required on the sides and bottom and 2” (51 mm) on the top
of the pipe. See Page 19 for allowable pipe configurations.
uThe center of the access hole for the gas piping is located at the
left side of the fireplace 6-7/8” back from the front edge and 2-1/8”
up from the base of the unit.
vThe electrical access is located at the right lower rear of the fire-
place.
wThese dimensions include the 3/4” stand-offs.
*
*
Installations in the shaded
area require five inches
clearance on top of pipe.
Fireplace side view
(drawing not to scale)
Base of Fireplace
Dimensions
Mantel and Facing Material (side view)
29-3/4”
(756mm)
w
35-1/2”
(902mm)
20-3/4”
(527mm)
w
38-1/4”
(972mm)
47-3/4”
(1213mm) 41”
(1041mm)
43”
(1092mm)
12”
(305mm)
5-1/4”
(133mm)
49-5/8”
(1261mm)
47-5/8”
(1210mm)
41-5/8”
(1057mm)
7-1/2”
(191mm)
2”
(51mm) 1-1/4”
(32mm)
u
v

8NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Framing Dimensions
The dimensions given on this page are minimum framing distances neces-
sary to maintain safe clearances between the Ravelle™ 42 gas fireplace
and combustible materials.
uIf the unit is to be vented horizontally with a 90º elbow right off the
top of the fireplace and directly through an exterior wall, then a hole
10-3/4” (273 mm) square with a center line 42-1/4” (1073 mm)
above the base of the fireplace will accommodate the wall thimble
and direct vent pipe.
vThe gas line should be routed to the left side of the unit. The access
hole in the fireplace for the gas line is 6-7/8” (175 mm) back from
the front edge and 2-1/8” (54 mm) up from the base of the unit. If
the gas line enters the unit from the right side the piping will need to
be disconnected to remove the fan.
If a wall-mounted on/off switch or thermostat is to be used, these
wires should be routed to the left front of the unit for access to the
fireplace. The wire should be fed through the gas line hole, along the
gas line, to the valve.
wThe electrical power supply wiring should be routed to the right rear
of the unit.
Note: The fireplace may be placed directly on wood or non-combustible
flooring, but not on vinyl floor covering or carpet.
Framing Suggestions: The framing header above the front of the
fireplace should be as narrow front to back as allowable to give maximum
clearance to the direct vent pipe (i.e. don’t use a 6” (152 mm) thick header
when a 4” (102 mm) thick one is allowed).
21”
(533mm)
C/L
u
v
w
44-1/2”
(1130mm)
48”
(1219mm)
44-1/2”
(1130mm)
Figure 3
A 6” (152 mm) header may need to be notched to accommodate vertical
vent pipe. If the fireplace is going to be horizontally vented directly out
the back, do not place a stud in line with the wall thimble. If a hearth
extension greater than 1” (25 mm) thick is going to be used, the fire-
place and the header must be raised accordingly. See Hearth Extension
Considerations for further details.
Insulation: The exterior walls adjacent to the fireplace should be
insulated like the rest of the house, but insulation should not be placed
around the fireplace or vent pipe.
Corner Installations: The dimensions on this page are minimum and
show the stand-offs on the rear corners of the fireplace up against the
corner walls.
INSTALLATION

9
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 4
18-9/16
(471)
14
(356)
44-1/2
(1130)
51-1/4
(1302)
29-3/4
(756)
20-3/4
(527)
47-3/4
(1213)
35-1/2
(902)
2
(51)
34
(864)
41
(1041)
38-1/4
(972)
30
(762)
43
(1092)
30
(762)
3-1/2
(89)
9-1/2
(241)
10-3/4
(273)
72-1/2
(1842)
6-7/8
(175)
18-3/16
(462)
32-5/16
(821)
3-1/2
(89)
5
(127)
6-1/4
(159)
2-1/4
(57)
GAS INLET
ELECTRICAL
INLET
Fireplace Dimensions
Corner Installation
Framing Details
Inches (millimeters)

10 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Base of Fireplace
One Inch Space
Fireplace
Face
Raised
Platform
Nailing
Plate
Raised Installations
The fireplace may be raised by building a platform of sufficient strength to
support the fireplace and pipe. When building a raised hearth extension,
please see the note below regarding height of the fireplace in relation to
the thickness of the hearth extension material.
Hearth Extension Considerations
A hearth extension in front of the fireplace is not required; however, to
enhance the appearance of the Ravelle™ 42 gas fireplace, one is recom-
mended. Note: There is a 1” (25 mm) space between the base of the
fireplace and the bottom of the decorative fireplace face. This space
will allow a 7/8” (22 mm) thick hearth extension (including backer board
if desired). Should a hearth extension thicker than 7/8” (22 mm) be
desired, the height of the fireplace must be raised the thickness of that
hearth extension less the 7/8” (22 mm). For example, if a 2-7/8” (73 mm)
thick cultured stone is to be placed on the floor to serve as the hearth
extension, then the fireplace must be raised 2” (51 mm) (possibly using
1/2” (13 mm) plywood over 2 x 4’s laid flat) to accommodate the 2-7/8”
(73 mm) stone. It is important to note that if the fireplace is raised then
it is necessary to raise the height of the header above the stand-offs
an equal amount. If you wish to install your fireplace without a hearth
extension you must remember to set your finished flooring height 1” (25
mm) higher than the bottom base of the fireplace or install the fireplace
1” (25mm) lower than the finished flooring materials for that room. This
will assure that no gap will exist between the room’s flooring and your
new fireplace decorative face after it is installed.
Figure 5
Figure 6 Figure 7
Fireplace
Face
Raised Platform
for Hearth Exten-
sion and Fireplace
Raised Platform
for Hearth Extension
and Fireplace
Raised
Platform
Nailing
Plate
Base of Fireplace
One Inch Space

Figure 8
11
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
The screws should be driven through the cement board into the outer
metal skin of the fireplace. The sheetrock (drywall) is then butted up
to the cement board. The sheetrock above the fireplace should also be
fastened to the fireplace by driving screws into the outer metal skin of
the fireplace.
Facing Less Than 1” Thick: If the combined thickness of the facing
material (eg. 3/8” [9.5 mm] thick ceramic tile and 1/2” [13 mm] thick
cement board) is less than 1” (25mm), then the tile can be placed behind
the fireplace face (see below).
Facing Installation Considerations
Non-combustible cement board (such as Wonderboard, Durock, or
Hardybacker) must extend 10” (254 mm) above the 1” (25 mm) top
reveal and a minimum of 3” (76 mm) from each side reveal (see Figure
8). This cement board may be 1/4” (6.3 mm) thick or greater, but would
normally be the thickness of the drywall - for example 1/2” (13 mm).
The cement board may be fastened by drywall screws.
Cement Board
3/8” Tile and 1/2” Cement
Board Behind Fireplace Face
Cement Board - a minimum
of five inches wide.
Sheetrock
1” Reveal
5” (127mm)
Minimum
Sheetrock
3” (76mm)
Minimum
Cement Board - Minimum
of 3” (76mm) Wide
10” (254mm)
Minimum
3/8” (9.5mm) Tile and 1/2” (12.7mm) Cement Board
Behind Fireplace Face
Sheetrock
Cement Board
1” Reveal
(25mm)
Sheetrock

Figure 9
Figure 10 Figure 15
Figure 14
Figure 13
Figure 12
12
The fireplace face dimensions are:
Arch Face
Adjustment prior to arched face installation:
The corners of the 1” (25mm) reveal around the fireplace opening need
to be adjusted prior to installing an arched face (see drawings below).
Remove screws A and loosen screw B. Rotate the corner downward
bending the metal at pivot point C until the holes from which screws A
were removed line up with the lower set of holes. Reinstall screws A and
tighten screw B. When finished, the corners should look like the corner
below at the far right.
Platform to raise fireplace to accommodate a
hearth extension greater than 1” in thickness.
Facing Greater Than 1” (25mm) Thick:
If the combined thickness of the facing material (eg. brick or cultured
stone) and concrete board is greater than 1”, then the facing material
must be placed around the face. A template (Arch #75098, Foundry™
#75035 and Louver #75101) should be used while installing the facing
material. Templates for the various faces may be purchased from your
Lennox Hearth Products dealer or a template may be made of plywood
using the dimensions listed on this page. If you choose to make a
template, 1/8” (3mm) must be added to each side and top dimension to
provide sufficient clearance so the face may be removed for access to
the firebox. Since the bottom of the fireplace face is 1” above the base
of the fireplace, 1” (25mm) must be added to the height of the template
if the template is to rest on the floor or platform on which the fireplace
is placed. It is extremely IMPORTANT that the template be centered left
to right on the glass door of the fireplace.
Traditional Face
Reveal Corner Adjusted
for Arch Face
Reveal Corner Adjusted
for Arch Face
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
26-3/8”
(670mm)
30-5/8”
(778mm)
41”
(1041mm)
51-1/2” R
(1308mm)
41”
(1041mm)
30-5/8”
(778mm)
Reveal Corner
Reveal Corner
Expanded View of
Reveal Corner
Template
Template
A
B
C
Expanded View of Reveal Corner
A
A
B
A
C

13
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
2. Bracket C in the diagram below is installed on the face during the face
assembly (see instructions included with face). The captive screws D
on this bracket should be screwed into captive nuts E on the fireplace.
A phillips head screwdriver inserted through the vent holes in the face
can be used to complete this task. Align the face for plumb and level
and then tighten all four screws.
CAUTION: Any masonry that has been cleaned with an acid
wash must be properly neutralized before installing the fire-
place face. The acid wash will tarnish the face. Consult your
masonry installer.
Face Installation
A number of different faces are available for the Ravelle™ 42 gas fire-
place, however, all the faces are installed in a similar manner. A total of
four screws (two upper and two lower) attach the face to the fireplace.
To install a face:
1. Locate the two screws found in the hardware bag shipped with the face.
Position the face (with the lower door open) in front of the fireplace.
Install the two screws, A in the diagram below, through the holes in the
lower door hinge bracket and screw them into the captive nut on tab B
located on the fireplace. Do not fully tighten these screws yet.
A
B
CD
E
Expanded View
Expanded View
Figure 16
Expanded View
Expanded View
C
DE
A
B

Application:
The Ravelle™ 42 gas fireplace, has been tested and listed as a direct
vent heater system by OMNI-Test Laboratories, Portland, Oregon. and
is recommended for use with Security™ Secure Vent™ pipe.
IMPORTANT:
• Read all instructions carefully before starting the installation.
Failure to follow these instructions may create a fire or other
safety hazard and will void the warranty. Be sure to check for
specific clearances to combustible requirements on Page 7.
Do not extend the venting system vertically or horizontally in
excess of the distance prescribed on Page 19.Consult your
local building codes before beginning the installation.
• Always maintain the proper air spaces (see Page 7) between
theventpipeandnearbycombustiblestoprevent a firehazard.
Do not fill air spaces with insulation. Be sure to check the
ventterminationclearancerequirementsfrom decks, windows,
soffits, gas regulators, air supply inlets and public walkways,
as specified in these installation instructions on Page 20 and
local building codes.
• Thisgas applianceand vent system must beventeddirectlyto
theoutsideof the buildingandneverbeattachedto a chimney
serving a separate solid fuel or gas-burning appliance. Each
direct ventgas appliancemustuseits ownseparateventsystem.
Common vent systems are prohibited.
• The Ravelle 42 gas fireplace is recommended for use
with Security Secure Vent pipe. The appliances and vent
manufacturerswarrantieswillbevoidedandseriousfire,health,
or other safety hazards may result from any of the following
actions:
• Installation of any damaged direct vent component.
• Unauthorized modification of the direct vent system.
• Installation of any vent component part not approved or
manufactured by the approved vent manufacturer.
• Installation other than as instructed by Lennox Hearth
Products and vent manufacturers instructions.
Vent Parts List
Direct vent pipe Security™ Secure Vent™* may be used with the Ravelle
42 gas fireplace. Please see the lists below to verify the components avail-
able from each direct vent pipe manufacturer. Snorkel terminations are
available for applications which may require vertical rise on the building
exterior. The components listed below come in a galvanized finish. Most
of the components are also available in a painted black finish. Add a “B”
to the end of the part number when ordering if a black part is desired.
Security™ Secure Vent 6-5/8”x 4” Pipe
Part Number Description
SV4L6 6” Pipe Length
SV4L12 12” Pipe Length
SV4L24 24” Pipe Length
SV4L36 36” Pipe Length
SV4L48 48” Pipe Length
SV4LA 6” Pipe, Adjustable
SV4LA12 12” Pipe, Adjustable
SV4FA Flashing, 1/12 to 176/12 Roof Pitch
SV4FB Flashing, 8/12 to 12/12 Roof Pitch
SV4RSM Wall Radiation Shield
SV4E46 45° Elbow
SV4E90 90° Elbow
SV4VS Vinyl Shield Protector
SV4FC Storm Collar
SV4CGV Vertical Termination Cap
SV4BF Firestop
SV4CHC Horizontal Termination Cap
SV4STC36 Snorkel Termination (36”) Cap
SV4STC14 Snorkel Termination (14”) Cap
SV4BM Wall Band
Simpson DuraVent 6-5/8”x 4” GS Pipe
Part Number Description
908 6” Pipe Length
907 9” Pipe Length
906 12” Pipe Length
904 24” Pipe Length
903 36” Pipe Length
902 48” Pipe Length
911 11” to 14-5/8” Pipe, Adjustable
912 12” to 17” Pipe, Adjustable
917 17” to 24” Pipe, Adjustable
942 Wall Thimble
943 Flashing, 0/12 to 6/12 Roof Pitch
943S Flashing, 7/12 to 12/12 Roof Pitch
945 45° Elbow
950 Vinyl Siding Standoff
953 Storm Collar
963 Ceiling Firestop
980 Vertical Termination
981 Snorkel Termination (36”)
982 Snorkel Termination (14”)
984 Horizontal Square Termination (High Wind)
988 Wall Strap
991 Vertical Termination (High Wind)
14
VENT INSTALLATION

15
Vent Parts List - Horizontal
Direct vent pipe by Security™ or Simpson Dura-Vent may be used
with the Ravelle™ 42 gas fireplace. Please see the lists below to verify
the components available from each direct vent pipe manufacturer. All
horizontally terminated venting of the Ravelle 42 gas fireplace uses 8”
x 5” size vent pipe and all vertically terminated venting uses 6-5/8” x 4”
size vent pipe. The flue collar on the fireplace is 8” x 5” in size. Therefore,
when vertically terminating it is necessary to use a reducer - part number
75247 (available from Lennox Hearth Products) - to make the transition
from the 8” x 5” flue collar to the 6-5/8” x 4” pipe. Snorkel terminations
areavailablefor applicationswhichmayrequireverticalriseonthe building
exterior. The components listed below come in a galvanized finish. Most
of the components are also available in a painted black finish. Add a “B”
to the end of the part number when ordering if a black part is desired.
Security™ Secure Vent™ 8”x 5” Pipe
Part Number Description
SV5L6 6” Pipe Length
SV5L12 12” Pipe Length
SV5L24 24” Pipe Length
SV5L36 36” Pipe Length
SV5L48 48” Pipe Length
SV5LA 6” Pipe, Adjustable
SV5LA12 12” Pipe, Adjustable
SV5E45 45º Elbow
SV5E90 90º Elbow
SV5RSM Wall Radiation Shield
SV5VS Vinyl Shield Protector
SV5BF Firestop
SV5CHC-1 Horizontal Termination Cap
SV5STC14 Snorkel Termination (14”) Cap
SV5STC36 Snorkel Termination (36”) Cap
SV5BM Wall Band
Simpson Dura-Vent GS 8”x 5” Pipe
Part Number Description
1208 6” Pipe Length
1207 9” Pipe Length
1206 12” Pipe Length
1204 24” Pipe Length
1203 36” Pipe Length
1202 8” Pipe Length
1211 11” to 14-5/8” Pipe, Adjustable
1217 17” to 24” Pipe, Adjustable
1290 90° Elbow
1247 Wall Thimble
1263 Ceiling Firestop
1288 Wall Strap
1281 Snorkel Termination (36”)
1282 Snorkel Termination (14”)
1284 Horizontal Termination Cap
1285 Horizontal Termination Cap (High Wind)
1250 Vinyl Siding Standoff
Vent Parts List - Vertical
Direct vent pipe by Security or Simpson Dura-Vent may be used with
the Ravelle 42 gas fireplace. Please see the lists below to verify the
components available from each direct vent pipe manufacturer. All
horizontally terminated venting of the Ravelle 42 gas fireplace uses 8”
x 5” size vent pipe and all vertically terminated venting uses 6-5/8” x 4”
size vent pipe. The flue collar on the fireplace is 8” x 5” in size. Therefore,
when vertically terminating it is necessary to use a reducer - part number
75247 (available from Lennox Hearth Products) - to make the transition
from the 8” x 5” flue collar to the 6-5/8” x 4” pipe. Snorkel terminations
areavailableforapplicationswhichmayrequireverticalriseon thebuilding
exterior. The components listed below come in a galvanized finish. Most
of the components are also available in a painted black finish. Add a “B”
to the end of the part number when ordering if a black part is desired.
Security Secure Vent 6-5/8”x 4” Pipe
Part Number Description
SV4L6 6” Pipe Length
SV4L12 12” Pipe Length
SV4L24 24” Pipe Length
SV4L36 36” Pipe Length
SV4L48 48” Pipe Length
SV4LA 6” Pipe, Adjustable
SV4LA12 12” Pipe, Adjustable
SV4FA Flashing, 1/12 to 176/12 Roof Pitch
SV4FB Flashing, 8/12 to 12/12 Roof Pitch
SV4RSM Wall Radiation Shield
SV4E46 45° Elbow
SV4E90 90° Elbow
SV4VS Vinyl Shield Protector
SV4FC Storm Collar
SV4CGV Vertical Termination Cap
SV4BF Firestop
SV4BM Wall Band
Part Available from Lennox Hearth Products Only:
75247 8” x 5” to 6-5/8” x 4” Reducer
Simpson Dura-Vent GS 6-5/8” x 4” Pipe
Part Number Description
908 6” Pipe Length
907 9” Pipe Length
906 12” Pipe Length
904 24” Pipe Length
903 36” Pipe Length
902 48” Pipe Length
911 11” to 14-5/8” Pipe, Adjustable
912 12” to 17” Pipe, Adjustable
917 17” to 24” Pipe, Adjustable
942 Wall Thimble
945 45° Elbow
943 Flashing, 0/12 to 6/12 Roof Pitch
943S Flashing, 7/12 to 12/12 Roof Pitch
953 Storm Collar
963 Ceiling Firestop
988 Wall Strap
980 Vertical Termination Cap
991 Vertical Termination Cap (High Wind)

Female
Locking
Lugs
Sealant
Vent Considerations
Twist-lock procedure: Four indentations, located on the female ends
of pipes and fittings, are designed to slide straight onto the male ends of
adjacent pipes and fittings by orienting the four pipe indentations so they
match and slide into the four entry slots on the male ends (see Figure
17). Push the pipe sections completely together, then twist-lock one sec-
tion clockwise approximately one-quarter turn until the two sections are
fully locked. The female locking lugs will not be visible from the outside
on the pipe or fittings. They may be located by examining the inside of
the female ends.
Male
Locking
Lugs
Supports: Horizontal runs of vent must be supported every three feet.
Wall straps are available for this purpose.
Pipe Sealing: If Security™ Secure Vent™ pipe is used, then sealant is
required at only the first pipe joint attaching the pipe to the flue collar on
the fireplace. If Simpson Dura-Vent GS pipe is used, then the pipe must
be sealed as follows: seal both the inner and outer pipes with a high
temperature silicone sealant rated for at least 600º F (commonly known
as “RTV”). Run a 1/8” (3mm) bead of silicone around the outside of the
male end of the outer sleeve. Run a 1/8” (3mm) bead of silicone about
1/4” (6mm) from the end of the male inner pipe, which is found in the
pipe to be attached above. Twist-lock the pipes or fittings together.
Figure 17
16 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.

Figure 18
17
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Horizontal Vent Installation
IMPORTANT NOTES:
1. All Ravelle™ 42 gas fireplaces horizontally terminated vent
installations use 8”x 5” Security™ Secure Vent™ or Simpson
Dura-Vent GS direct-vent pipe.
2. When this pipe passes through a wall, a wall thimble - Security
#SV5RSM or Simpson #1247 is required. The hole in the wall
for the wall thimble should be 10-3/4” x 10-3/4”.
3. Horizontal runs of vent must be supported every three feet. Wall
straps - Security #SV5BM or Simpson #1288 are available for
this purpose.
4. If the vent passes through a ceiling or floor, a firestop - Security
#SV5BF or Simpson #1263 is required.
5. Venting terminals shall not be recessed into a wall or siding.
If installing the termination cap on a wall covered with siding,
a vinyl siding standoff - Security #SV5VS or Simpson #1250
or furring strips must be used to ensure that the termination
cap is not recessed into the siding.
6. The horizontal run of vent must have a 1/4” (6mm) rise for
every 12” (305mm) of run towards the termination.
7. If the wall being penetrated is constructed of non-combus-
tible material, such as masonry block or concrete, an 8-1/2”
(216mm) diameter hole is acceptable and a wall thimble is
not required.
8 The location of the horizontal vent termination on an exterior
wall must meet all local and national building codes and must
not be blocked or obstructed. For allowable external vent ter-
minations locations, see the diagram on Page 20.
9. Allowable clearances from the vent pipe to combustible materi-
als must be maintained. See Page 7 for these clearances.
10.Do not locate the termination cap where it may be blocked by
shrubbery or snow.
Elbow
Termination Cap
Wall Thimble
10-3/4”x 10-3/4”
(273mm x 273mm)
Framed Hole
Vertical Vent Installation
IMPORTANT NOTES:
1. AllRavelle 42gasfireplaceverticallyterminatedventinstallations
use 6-5/8” x 4” Security or Simpson Dura-Vent GS direct-vent
pipe.
2. Fireplaces that are vertically terminated require pipe reducer
- Lennox Hearth Products #75247 - installed on the fireplace’s
flue collar before the
direct vent pipe can be installed.
3. If the vent passes through a ceiling or floor, a firestop - Security
#SV4BF or Simpson #963,
4. If the vent passes through the roof, a roof flashing - Security
#SV4FA or SV4FB, Simpson #943 or 943S and storm collar
- Security #SV4FC, Simpson #953 are required.
5. Allowable clearances from the vent pipe to combustible materi-
als must be maintained. See Page 7 for these clearances.
6. A maximum of two 45º elbows may be used. See Page 18 for
allowable offsets.
7. Themaximumsystemheightis30feet(9.1M)andthe minimum
is 10 feet (3 M).
Note:
Verifythatyouhave
at least the mini-
mum clearance to
combustibles atthe
roofline.
Flashing
Simpson (Part # 943 or 943S)
Secuirty (Part #SV4FA or SV4FB)
Vertical Termination Cap
Security (Part #SV4CGV)
Simpson (Part # 980)
Pipe
Length
CeilingFirestop
Simpson (Part # 963)
Security (Part # SV4BF)
CeilingMinimum
Framing 10” x 10”
(254mm x 254mm)
Storm Collar
Simpson (Part # 953)
Security (Part #SV4FC)
Roof- Maintain 1”
(25mm) Clearance
to Combustibles
Figure 19

18
Flue Restrictors
The flue restrictor settings shown in Figures 22 and 23 are for typical
installations and may need to be adjusted from standard to take into
accountothervariablesintheinstallationto achievepropercombustion.
See Flue Restrictor Guidelines on this page to assist you in making a
proper flue restrictor adjustment.
The Ravelle™ 42 gas fireplace uses balanced flue technology to ensure
proper combustion. Flue restrictors may need to be installed depending
on the vent configuration of your fireplace. The drawings on Page 19
show all the allowable pipe configurations for the Ravelle 42 gas fireplace.
To properly install the flue restrictor, find your pipe configuration in the
drawings on Page 19 and note which restrictor setting is recommended.
The flue restrictors and four black self-tapping 5/32” allen head screws
can be found in the firebox in a plastic bag. The restrictors should be
placed over the openings at both sides of the ceiling of the firebox. For
each restrictor, two self-tapping 5/32” allen head screws should be in-
stalled in either holes 1, 2, 3, or 4 in the restrictor and screwed into the
two holes in the firebox ceiling. (There are four holes at each side of the
firebox ceiling to receive only two screws. Insert the screws into either
two holes). See the drawing to the right for the location of hole numbers
on the restrictor. The numbered holes in which the screws are inserted
in the restrictor should correspond to the restrictor position numbers
found on the drawings for your pipe configuration. Restrictor positions
are based on tests run in a laboratory. The optimum restrictor positions
may need to be adjusted slightly depending on the conditions surround-
ing the residential installation. Do not adjust restrictors to a point where
the fireplace is sooting.
Notes: The higher the number of the flue restrictor position, the greater
amount of combustion air will be delivered.
Flue Restrictor Adjustment Guidelines
After the flue restrictors have been set to the standard settings as shown
in Figures 22 and 23, the burner flame appearance should be evaluated
to determined if the flue restrictors need to be set to a different position
to adjust for variables in your installation. Light the appliance and allow
it to burn for 20 minutes. See Flame Color and Behavior on Page 30 to
determine if you have a proper burner flame appearance. If the proper
flame appearance cannot be achieved, the flue restrictor may need to be
set to a different position. See the following guidelines to determine if
you need to readjust the flue restrictors.
Before proceeding, confirm the manifold and inlet gas pressure is correct,
primary air shutter is properly adjusted, venting system connections are
secure and not blocked and if you are at a high elevation, ensure unit has
been properly derated:
Symptoms - Lack of Combustion Air
If the symptoms listed below are present, you may need to adjust the
flue restrictor to a more open position.
• Flame appears yellow
• Floating Flames (lazy, ill defined, quiet, may roll)
• Sooting
• Pilot becomes yellow and appliance shuts down
Symptoms - Excessive Combustion Air
If the symptoms listed below are present, you may need to adjust the
flue restrictor to a more closed position.
• Low Flame
• Pilot pulls and appliance shuts down
• Pilot flame ghosts
Termination Heights For Vents
Above Flat Or Sloped Roofs
Ref. NFPA 54 / ANSI Z223.1
Roof Pitch * Feet *Meters
Flat to 6/12 1.0 0.3
6/12 to 7/12 1.25 0.38
7/12 to 8/12 1.5 0.46
8/12 to 9/12 2.0 0.61
9/12 to 10/12 2.5 0.76
10/12 to 11/12 3.25 0.99
11/12 to 12/12 4.0 1.22
12/12 to 14/12 5.0 1.52
14/12 to 16/12 6.0 1.83
16/12 to 18/12 7.0 2.13
18/12 to 20/12 7.5 2.29
20/12 to 21/12 8.0 2.44
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
Vertical Vent Termination Clearances
The vent / air intake termination clearances above the high side of an
angled roof is as shown in the table below.
Figure 20
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Figure 21
Restrictors
Interior of Firebox
Restrictors
Interior of Firebox

19
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Vertical Terminations
(Use 6-5/8” Direct-Vent Pipe)
The shaded areas in the diagram below show all allowable combinations
of straight vertical and offset to vertical (maximum four 45º elbows or two
90º elbows) vent configurations with vertical terminations. The termina-
tion must fall within the shaded areas on the diagram. Use the restrictor
positions indicated. The maximum offset length at a 45º angle consists
of one three foot and one four foot section of pipe. The maximum height
is 30 feet (9.1 M) and the minimum is 10 feet (3 M).
Vertical Terminations
Restrictor
Position #2
5 Ft. 2 In. (1.6M)
Maximum
Restrictor
Position #1
Horizontal Terminations
(Use 8” Direct-Vent Pipe)
The shaded areas in the diagram below show all allowable combinations
of vent configuration with horizontal terminations. Horizontal sections
of pipe require 1/4” (6.4 mm) of rise for every 12” (305 mm) of run.
A second 90º or 45º elbow (in addition to the first 90º elbow at the top
of the vertical length of pipe) is allowed as long as the overall length of
the horizontal run of pipe does not exceed those shown below. Use the
restrictor positions indicated. If the fireplace is vented with an elbow
directly off the top of the flue collar and three to four feet of horizontal
pipe is used, then no restrictor is to be installed in the fireplace.
Horizontal Terminations
Restrictor
Position #2
Restrictor
Position #3
Restrictor Position #4
No Restrictor
Snorkel Terminations: For installations requiring a vertical rise on the exterior
of the building, 14-inch (356 mm) and 36-inch (914 mm) tall snorkel terminations -
Security™ #SV5STC14 or SV5STC36 and Simpson #1281 or 1282 are available. Follow
the same installation procedures as used for standard horizontal terminations. If the
snorkel termination must be installed below grade (i.e. basement application), proper
drainage must be provided to prevent water from entering the snorkel termination.
Do not attempt to enclose the snorkel within the wall or any other type of enclosure.
On vinyl siding, furring strips may be used to ensure that the snorkel is not recessed
into the siding. NEVER install the snorkel upside down.
18 Ft.
(5.5M)
15 Ft.
(4.6M)
10 Ft.
(3M)
5 Ft.
(1.5M)
0 Ft.
(0M)
0 Ft.
(0M)
5 Ft.
(1524M)
10 Ft.
(3M)
15 Ft.
(4.6M)
20 Ft.
(6M)
15 Ft.
(4.6M)
20 Ft.
(6M)
5 Ft.
(1524M)
0 Ft.
(0M)
0 Ft.
(0M)
5 Ft.
(1524M)
10 Ft.
(3M)
30 Ft.
(9M)
25 Ft.
(7.6M)
Figure 22
Figure 23

20 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Exterior Horizontal Vent Termination Clearance Requirements
V
VV
V
V
F
C
B
B
A
B
H
M
I
XV
D
V
AA
A
V
L
B
J
XE
V
A
G
*18”
18”
B
C
C
C
* See Item D in the Text Below.
Center Line
of Termination
Exterior Wall
Horizontal
Termination
Ventilated Soffit
Inside Corner
DETAIL D
Minimum Clearances Canadian Installation * US Installation **
A = Clearance above grade, veranda, porch, deck
or balcony.
12 inches (30 cm) * 12 inches (30 cm) **
B = Clearance to window or door that may be
opened.
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)*
C = Clearance to permanently closed window 12 inches (305 mm) recommended to prevent window
condensation
9 inches (229 mm) recommended to prevent window
condensation
D = Vertical clearance to ventilated soffit located
above the terminal within a horizontal distance of 18
in. (458 mm) from the center line of the terminal
18 inches (458 mm) 18 inches (458 mm)
E = Clearance to unventilated soffit 12 inches (30 cm) 12 inches (30 cm)
F = Clearance to outside corner 5 inches (12.7 cm) 5 inches (12.7 cm)
G = Clearance to inside corner 6 in. (15 cm) 6 in. (15 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 outlet 3 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
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)*
K = Clearance to mechanical air supply inlet 6 feet (1.8 meters) * 3 feet (91 cm) above, if within 10 feet (3 m) horizon-
tally**
L = Clearance above paved sidewalk or paved
driveway located on public property
7 feet (2.13 m) ‡ 7 feet (2.13 m) ‡
M = Clearance under veranda, porch, deck or
balcony
12 in. (30 cm) * ‡ 12 in. (30 cm) ** ‡
* In accordance with the current CSA/CAN-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.
Inside
Corner Detail
Operable
Window
Fixed
Closed
Window
= 9" in U.S.
= 12" in Canada
3 ft.
3 ft.
= Air Supply Inlet = Vent Terminal = Area where Terminal is NOT permitted
Figure 24