Lennox Hearth Products LSS-35CN User manual

1
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
INSTALLATION
INSTRUCTIONS
VENTED GAS FIREPLACE HEATERS - DIRECT VENT MODELS
P/N 850,016M REV. H 08/2007
FORYOURSAFETY: Donotstoreorusegasoline
orotherflammablevaporsorliquidsinthevicin-
ity of this or any other appliance.
FORYOUR SAFETY: Whatto doif yousmell 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.
• Ifyourgassuppliercannotbereached,callthe
fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
MODELS
POURVOTRESÉCURITÉ: Nepasentreposerniutiliser
d'essencenid'autrevapeursouliquidesinflammables
dans le voisinage de cet appareil ou de tout autre
appareil.
POURVOTRESÉCURITÉ: Quefairesivoussentezune
odeur de gaz:
•Ne pas tenter d'allumer d'appareil.
•Netouchezàaucuninterrupteur. Nepasvousservir
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.
L'installationetservicedoitêtreexécutéparunqualifié
installeur,agencede serviceoule fournisseurdegaz.
DIRECT VENT
SPECTRA SERIES
This appliance may be installed in an aftermar-
ket permanently located, manufactured home
(USA only) or mobile home, where not prohib-
ited 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
OTL Report No. 116-F-02-05
LSS-35CN LSS-40CN
LSS-35CP LSS-40CP
WARNING:IFTHEINFORMATIONINTHISMANUAL
IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLO-
SION MAY RESULT CAUSING PROPERTY DAM-
AGE, PERSONAL INJURY OR LOSS OF LIFE.
AVERTISSEMENT: ASSUREZ-VOUS DE BIEN SUIVRE
LESINSTRUCTIONSDONNÉDANSCETTENOTICEPOUR
RÉDUIRE AU MINIMUM LE RISQUE D'INCENDIE OU
POUR ÉVITER TOUT DOMMAGE MATÉRIEL, TOUTE
BLESSURE OU LA MORT.
A French manual is available upon request. Order Form Number
850,016CF.
Ce manuel d’installation est disponible en francais, simplement en
faire la demande. Numéro de la pièce 850,016CF.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.

2NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
TABLE OF CONTENTS
Packaging........................................ page 2
Introduction..................................... page 2
General Information......................... page 2
Location .......................................... page 3
Appliance and Vent Clearances....... page 4
Framing Specifications .................... page 5
Facing Requirements....................... page 6
Hearth Requirements....................... page 7
Fireplace Specifications ................... page 8
Vent Termination Clearances ........... page 9
Typical Installation Sequence .......... page 9
Detailed Installation Steps ............... page 9
Step 1. Framing ............................. page 9
Step 2. Routing Gas Line ............... page 11
Step 3. Install the Venting System. page 11
Vertical Termination Systems .......... page 11
Vent Section Length Chart............... page 12
Vertical Vent Tables and Figures...... page 15
Horizontal Termination System........ page 16
Horizontal Vent Tables and Figures . page 18
Venting Using Flexible Vent Pipe ..... page 20
Step 4. Field Wiring ....................... page 21
Step 5. Connecting Gas Line.......... page 21
Comfort Control Valve ..................... page 22
Step 6. Installing Ceramic Panels
And Logs ..................................... page 24
Step 7. Checking Unit Operation ..... page 24
Step 8. Installing Glass Door ......... page 24
Step 9. Burner Adjustments........... page 25
Finishing Requirements................... page 26
Cold Climate Insulation.................... page 26
Installation Accessories................... page 27
Gas Conversion Kits.................. page 28
DO NOT ATTEMPT TO ALTER OR MODIFY
THECONSTRUCTIONOFTHEAPPLIANCEOR
ITS COMPONENTS. ANY MODIFICATION OR
ALTERATION MAY VOID THE WARRANTY,
CERTIFICATIONANDLISTINGSOFTHISUNIT.
INTRODUCTION
These fireplaces are designed, tested and listed
foroperationandinstallationwith,andonlywith,
SecureVent™DirectVentSystemComponents,
SecureFlex™FlexibleVentComponentsmanu-
facturedbySecurityChimneysInternationaland
Z-Flex™ Model GA Venting Systems, listed to
UL1777 and ULCS635 manufactured by Flex-
master Canada Limited. These approved vent
system components are labeled for identifica-
tion. DONOTuseanyothermanufacturer'svent
components with these appliances.
These appliances comply with National Safety
Standards and are tested and listed by Omni-
Test Laboratories (Report No. 116-F-02-5) to
ANSIZ21.88(inCanada,CSA-2.33),andCAN/
CGA-2.17-M91 in both USA and Canada, as
vented gas fireplace heaters.
PACKAGING
The assembled Spectra direct vent gas fire-
place heater is packaged with:
1 -one log set located in firebox area.
2 -one envelope containing the literature
packagewhichconsistsofthehomeowner's
manual, installation instructions, log set
supplement and warranty; envelope is lo-
cated in the control area.
3 -one bag of glowing embers located in the
control area.
4 -one ceramic panel set, located on top of
unit.
5 -one hand held remote control, located in
the control area.
6 -an additional one of the following items
required:
1: Cast Iron Face (Classic Arch) and
Grillwork (Black, Gold or Nickel) or
2: Arched Face (Black, Gold or Nickel) or
3: Rectangular Face (Black, Gold or
Brushed Stainless)
Each kit comes with an individual set of
installation instructions.
Note: Installation and repair should be per-
formedbyaqualifiedserviceperson.Theappli-
ance should be inspected annually by a quali-
fied professional service technician. More fre-
quent inspections and cleanings may be re-
quired due to excessive lint from carpeting,
bedding material, etc. It is imperative that the
control compartment, burners and circulating
airpassagewaysoftheappliancebekeptclean.
S'assurer que le brùleur et le compartiment
des commandes sont propres. Voir les in-
structions d'installation et d'utilisation qui
accompagnent l'appareil.
Provideadequateclearancesaroundairopen-
ings and adequate accessibility clearance for
service and proper operation. Never obstruct
the front openings of the appliance.
Please read and understand these
instructions before beginning your
installation.
GENERAL INFORMATION
Note: For combustible material refer to
Figure 48 on page 26.
Theseappliances aredesigned to operate on
natural or propane gas only.
This installation manual will help you obtain a
safe, efficient, dependable installation for your
appliance and vent system.
TheInstallation must conform to local codes
or, in the absence of local codes, with the
National Fuel Gas Code, ANSI Z223.1/NFPA
54
, or the Natural Gas and Propane Installa-
tionCode,CSAB149.1 . Theappliance,when
installed, must be electrically grounded in
accordance with local codes or, in the ab-
sence of local codes, with the National Elec-
trical Code, ANSI/NFPA 70 , or the Canadian
Electrical Code, CSA C22.1 .
These appliances are listed by Omni-Test
Laboratoriesforinstallationinbedroomsand
mobile homes.
WARNING: 1) FIRE HAZARD: DO NOT
PLACE ANY COMBUSTIBLE MATERIAL
OVERTHEFIREPLACEOPENING. 2)DOOR
FRONT ACCESSIBILITY: ANY NON-COM-
BUSTIBLE FINISHING MATERIAL AREAS
THAT PROTRUDE MORE THAN 1" FROM
THE FACING SHOULD MAINTAIN A 9"
CLEARANCE TO THE FIREPLACE OPEN-
ING. SEEFIGURE7,PAGE6FORDETAILS.

3
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Test gage connections are provided on the
front of the gas control valve (identified IN
for the inlet and OUT for the manifold side).
Do not use these appliances if any part has
been under water. Immediately call a quali-
fied,professionalservicetechniciantoinspect
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
dansl'eau,complètementouenpartie. Appeler
untechnicienqualifiépourinspecterl'appareilet
remplacertoutepartiedusystèmedecontrôleet
toutecommandequiontétéplongésdansl'eau.
These appliances feature a comfort control
valve which allows remote control of tem-
perature, fan and flame appearance. These
appliances also use a spark ignitor (piezo)
that allows the appliance's pilot gas to be lit
without the use of matches. This system
provides continued service in the event of a
power outage.
Theseappliancesmustnotbeconnectedtoa
chimneyorflueservingaseparatesolidfuel
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
freshair immediately. Turn off thegas sup-
ply to the appliance and have it serviced by
a qualified professional, as it may not be
operating correctly.
LOCATION
Inselectingthe location,the aestheticandfunc-
tionaluseoftheapplianceareprimaryconcerns.
However,ventsystemroutingtotheexteriorand
access to the fuel supply are also important.
Consideration should be given to traffic ways,
furniture,draperies,etc.,duetoelevatedsurface
temperatures (
see Figure 2 ).
Figure 1
TYPICAL INSTALLATION
Table 1
Installations at Altitudes of 0 to 4500 ft.-
Unitsaretestedandapprovedforelevations
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
editionoftheNationalFuelGasCode(ANSI
Z223.1)or,inCanada,the latesteditionof
the CAN1-B149.1 and .2 codes.
Gas Inlet And Manifold Pressures
Gas Specifications
Table1 showstheunits'gasorificesizefor
the elevations indicated.
ledoMleuF raeR renruB tnorF renruB
NC53-SSLsaG.taN44#05#
PC53-SSLsaGPL55#16#
NC04-SSLsaG.taN24#54#
PC04-SSLsaGPL"450.065#
These appliances must be isolated from the gas
supplypiping system (by closing their individual
manual shut-off valve) during any pressure test-
ing of the gas supply piping system at test pres-
sures equal to or less than 1/2 psig (3.5 kPa).
Theseappliances and their individual shut-off
valves must be disconnected from the gas
supply piping system during any pressure
testingofthatsystematpressuresinexcessof
1/2 psig (3.5 kPa).
ledoMleuF mumixaM tupnI )H/UTB(
muminiM tupnI )H/UTB(
NC53-SSLsaG.taN000,33005,32
PC53-SSLsaGPL000,13005,32
NC04-SSLsaG.taN005,14004,82
PC04-SSLsaGPL000,93007,03
larutaN)enaporP(PL
muminiM erusserPtelnI .c.w"0.5.c.w"0.11
mumixaM erusserPtelnI .c.w"0.41.c.w"0.41
dlofinaM erusserP .c.w"5.3.c.w"0.01
The external electrical power (120V) is re-
quired to operate the provided circulating
blower.
Drywall
Mantel
Non-Combustible
Top Of
Fireplace Opening
WARNING: FAILURE TO COMPLY WITH
THEINSTALLATIONANDOPERATINGIN-
STRUCTIONSPROVIDEDINTHIS DOCU-
MENT WILL RESULT IN AN IMPROP-
ERLY INSTALLED AND OPERATING AP-
PLIANCE,VOIDINGITSWARRANTY. ANY
CHANGE TO THIS APPLIANCE AND/OR
ITSOPERATINGCONTROLSISDANGER-
OUS. IMPROPERINSTALLATIONORUSE
OF THIS APPLIANCE CAN CAUSE SERI-
OUS INJURY OR DEATH FROM FIRE,
BURNS, EXPLOSION OR CARBON MON-
OXIDE POISONING.
WARNING: CHILDREN AND ADULTS
SHOULD BE ALERTED TO THE HAZARDS
OFHIGHSURFACETEMPERATURES.USE
CAUTION AROUND THE APPLIANCE TO
AVOID BURNS OR CLOTHING IGNITION.
YOUNG CHILDREN SHOULD BE CARE-
FULLYSUPERVISEDWHENTHEYAREIN
THE SAME ROOM AS THE APPLIANCE.
WARNING: DO NOT PLACE CLOTHING
OR OTHER FLAMMABLE MATERIALS
ON OR NEAR THIS APPLIANCE.
AVERTISSEMENT: SURVEILLER LES
ENFANTS. GARDER LES VÊTEMENTS,
LESMEUBLES,L'ESSENCEOUAUTRES
LIQUIDES ÀVAPEUR INFLAMMABLES
ÀCOTE DE L'APPAREIL.

4NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
.oNledoM )mm(sehcnithgieHflehS
woblEeergeD09enOhtiw-tneVpoT
tneVeruceSxelFeruceS
53-SSL 2/175)1641(4/195)5051(
04-SSL )9941(95)3451(4/306
Shelf Height
(see table)
Do not insulate the
space between the
appliance and the
area above it.
Shelf Above Fireplace With Top Venting
12 ¹⁄₄”
(311mm)
*Note: For Secure Vent
A SV4.5L6 6”Section
(Cat. No. 77L70) Is Required.
*See Note
Figure 2
Figure 3
HORIZONTAL VENT VERTICAL VENT
TOP VENT
APPLICATIONS
*Note: 3in.(75mm)aboveanyhorizontal/
inclined vent component.
Note: The nailing flange and the cabinet
surfaces directly adjacent to the framing
member attached to the nailing flange, are
exemptfromthe1/2"clearancetocombus-
tibles defined for the rest of the cabinet
sides and back.
Table 2
KCAB )mm31(.ni2/1 srecaps)mm0(.ni0
SEDIS )mm31(.ni2/1 srecaps)mm0(.ni0
SRECAPSPOT)mm0(.ni0
ROOLF)mm0(.ni0
fomottoBmorF gnilieCottinU )mm6261(.ni46
TNEV*)mm4.52(.ni1
SECNARAELCECIVRES
TNORF)sretem9.0(.teeF3
Typical Locations
The location should also be free of electrical,
plumbingorotherheating/airconditioningduct-
ing. These direct vent appliances are uniquely
suited for installations requiring a utility shelf
positioned directly above the fireplace. Utility
shelveslikethesearecommonlyusedforlocat-
ing television sets and decorative plants.
Do not insulate the space between the appli-
ance and the area above it. See Figure 3 .The
minimumheightfrom the base of the appliance
to the underside of combustible materials used
toconstructautilityshelfinthisfashionisshown
in the table in Figure 3 .
The appliance should be mounted on a fully
supported base extending the full width and
depthoftheunit.Theappliancemaybelocated
on or near conventional construction materi-
als. However, if installed on combustible ma-
terials, such as carpeting, vinyl tile, etc., a
metalorwoodbarrier covering the entire bot-
tom surface must be used.
APPLIANCE AND VENT CLEARANCES
Theseappliancesareapprovedwithzeroclear-
ancefromspacerstocombustiblematerialson
all sides (as detailed in Table 2 ), with the
following exception: When the unit is installed
with one side flush with a perpendictular side
wall,thewallperpendiculartotheoppositeside
of the appliance front face must not extend
morethan fiveinchesbeyond thefrontedge of
theunit.Inaddition, whenthe unitisrecessed,
the side walls surrounding the unit must not
extend more than five inches beyond the front
edge of the unit. Refer to Figure 2 .

5
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 4
Figure 5 Corner Framing with Square Termination (SV4.5HT)
Framing Dimensions
FIREPLACE FRAMING SPECIFICATIONS
A
B
7
(178)
(308)
( 267 )
C
VENT FRAMING -
TOP VENT WITH ONE
6”SECTION AND
ONE 90°ELBOW
Framing should be constructed
of 2x4 or larger lumber.
Inches (mm)
(130)
**FRAMING WITH SQUARE HORIZONTAL TERMINATIONS (SV4.5HT)
** See the horizontal venting Figures 29 and 30 on page 17 for
restrictions on the use of the square termination (SV4.5HT).
NOTE: For Secure Vent A 6”Section
SV4.5L6 (Cat. No. 77L70) Is Required
Before Installing The 90 Degree Elbow.
5-1/8
12-1/8
10-1/2
20-13/16
1/2 A
ledoM .oN ABCD E
53-SSL .ni538/161/5268/1938/16361/1151
mm2983851499819004
04-SSL .ni8/10461/5768/5748/58361/771
mm220101710121189344
C
Back wall of chase/enclosure
(including any finishing materials)
Note-
Venting requirements for corner installations -
D
A
B
E
ledoM .oN ABC
53-SSL .ni538/18/5248/115
mm29838019921
04-SSL .ni8/1048/1448/525
mm220112117331

6NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
FACING REQUIREMENTS
Figure 6
Figure 7 Non-Combustible Requirements
Unit Nailing Flange (On Both Sides)
Fireplace
TOP VIEW
1/2”Drywall
Faceplate
3/8”Tile
1/2”Concrete Board
2”x 4”
9”
Min.
Requires A Concrete Board
(Or Other Non-Combustible
Material) Extending From
The Top Of The Fireplace To
The Floor And To The
Framing Members On Both
Sides. Do Not Use
Sheetrock, Plywood Or Other
Combustible Material
4 1/2”Min.
(Both Sides)
Top Of Fireplace Non-Combustible Material
Warning: 1) Fire Hazard: Do Not
Place Any Combustible Material
Over The Fireplace Opening. 2) Door
Front Accessibility: Any Non-
Combustible Finishing Material
Areas That Protrude More Than 1”
From The Facing Must Maintain A 9”
Clearance To The Fireplace Opening.
For Combustible Material, Refer To
Figure 48 On Page 26.
Top Of Fireplace Opening
10”

7
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
HEARTH REQUIREMENTS
Figure 8
Cement Board
Tile, Marble, Brick, Carpet,
Or Other Non-Combustible
Or Combustible Material
Fireplace
Stand
1”
Min.
Figure 9 RAISED FIREPLACE
Fireplace
Floor Plywood Platform
Face
Thickness Of the Floor Covering
(Carpet, Flooring, Etc.)
1”Min.

8NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 10
FIREPLACE SPECIFICATIONS
H
ELECTRICAL
INLET
Diminsions In Inches (mm)
* Includes The 1/2”Spacers
1 (25.4)
3 (76)
11 ¹⁄₄
(286) G
1/2”Spacers
8 ¹¹⁄₃₂
(211)
AE
D
F
B
C
1
(25.4)
3 (76)
GAS INLET
(BOTH SIDES)
*21 ³⁄₈
(543)
6
(152) 8 ¹³⁄₁₆
(225)
2 ⁹⁄₁₆
(65)
3
(76)
FRAMING SPACERS
CONCENTRIC FLUE
Combustion Air - 7 ¹⁄₂ (190)
Flue - 4 ¹⁄₂ (114)
3 (76)
Vent Restrictor
Adjustment Rod
ledoM .oN ABCDEFGH
53-SSL .ni8/38361/1532/1929161/3618/3132/1124/301
mm579198947384114797645372
04-SSL .ni8/79361/1042/1432/10261/3128/7232/1624/131
mm31018101678125835538376733

9
NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
hctiPfooR)teef(H
21/6ottalF0.1
21/7ot21/6revO52.1
21/8ot21/7revO5.1
21/9ot21/8revO0.2
21/01ot21/9revO5.2
21/11ot21/01revO52.3
ot21/11revO 21/21 0.4
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
Figure 11
Figure 12 - Side Elevation View
3"
(76 mm)
12"
(305 mm)
Termination Kit
Combustible Projection
greater than inches in length
Combustible Projection
2-1/2inches or less in length
18"
(457 mm)
Ventilated
Soffit Unventilated
Soffit
Horizontal Vent Termination Clearances
2-1/2
Termination Kit
All horizontal terminations
may be located as close
as 6”(152mm) to any
(non-combustible and
combustible) exterior
sidewall. This distance
may be decreased to
2”(51mm) for non-
combustible exterior
sidewalls only, if the
SV4.5HT-2 termination
is used.
Horizontal Vent Termination Clearances
The horizontal vent termination must have a
minimum of 3" (76 mm) clearance to any
overheadcombustibleprojectionof2-1/2"(64
mm) or less. See Figure 5. For projections
exceeding 2-1/2" (64 mm), see Figure 5 . All
horizontal terminations may be located as
closeas6"(152mm)toany(non-combustible
and combustible) exterior sidewall. This dis-
tancemaybedecreasedto2"(51mm)fornon-
combustible exterior sidewalls only, if the
SV4.5HT-2 termination is used. For projec-
tions exceeding 2 ¹⁄₂" (64 mm), see Figure 12 .
Terminate multiple vent terminations accord-
ingtotheinstallationcodeslistedatthetopof
this page.
Vertical Vent Termination Clearances
VENT TERMINATION CLEARANCES
Theseinstructionsshouldbeusedasaguide-
lineand donot supersedelocal codesin any
way. Install vent according to local codes,
theseinstructions, the currentNational Fuel
Gas Code (ANSI-Z223.1) in the USA or the
current standards of CAN/CGA-B149.1 and -
B149.2 in Canada.
Terminatesingle ventcapsrelativetobuilding
components according to
Figure 11 .
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation follows,
however,eachinstallationisuniqueresultingin
variations to those described.
Seethepagenumbersreferencesinthefollow-
ing steps for detailed procedures.
Step1.(page9)Constructtheappliancefram-
ing. Positionthe appliancewithin theframing
and secure with nailing brackets.
Step 2. (page 11) Route gas supply line to
appliance location.
Step 3. (page 11) Install the vent system and
exterior termination.
Step 4. (page 21) Field Wiring
Install the operating control switch (not factory
provided) and bring in electrical service line for
forced air circulating blower.
Step5.(page21)Makeconnectiontogassupply.
Step6. (page24)Installtheceramicpanel,logs,
and glowing embers.
Step7. (page24)Checkoutapplianceoperation.
Step8.(page25)Installglassdoorframeassembly.
Step 9. (page 25) Adjust burner to ensure
proper flame appearance.
DETAILED INSTALLATION STEPS
The appliance is shipped with all gas controls
and components installed and pre-wired. Re-
move the shipping carton, exposing the front
glassdoor.Removeceramicpanelkitfromthe
top of the fireplace and set it aside with care.
Remove the cardboard from underneath the
pressure relief plates. Open the two latches
(located under the firebox floor) securing the
glass door. Remove the door by tilting it out-
wardatthebottomandliftingitup.Setthedoor
aside protecting it from inadvertent damage.
See Figure 46 on page 25.
Step 1. FRAMING
Frame these appliances as illustrated in
Figure 4 on page 5,unlesstheapplianceis
to be installed in a corner. See Figure 5 on
page 5 forcornerframinginstallations. All
framing details must allow for a minimum
clearance to combustible framing mem-
bers as shown in Table 2 on page 4. See
Figure 6 on page 6 for the facing detail.
See Figure 7 on page 6 for the Non-Combus-
tible requirements. See Figures 8 and 9 on
page 7 for Hearth Requirements.

10 NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.
Figure 14
EXTERIOR HORIZONTAL VENT TERMINATION CLEARANCE REQUIREMENTS
V
VV
VV
F
C
Fixed
Closed
Window
Operable
Window
B
B
A
B
H
M
I
= Vent Terminal = Area where Terminal is not Permitted
= Air Supply Inlet
XV
D
V
3 ft.
3 ft.
AA
A
= 9”in U.S.
= 12”in Canada
V
L
B
J
XE
V
A
G
Inside
Corner Detail
*18”
Ventilated Soffit
Horizontal
Termination
Detail D
Exterior Wall Center Line
of Termination
18”
Inside Corner
B
C
C
C
* See Item D in the Text Below.
*noitallatsnInaidanaC**noitallatsnISU
,hcrop,adnarev,edargevobaecnaraelC=A .ynoclabro,kced *)mc03(sehcni21**)mc03(sehcni21
ebyamtahtroodrowodniwotecnaraelC=B .denepo secnailpparof)mc51(ni6 )mc03(ni21,)Wk3(hutB000,01< dna)Wk3(hutB000,01>secnailpparof )mc19(sehcni63,)Wk03(hutB000,001< *)Wk03(hutB000,001>secnailpparof secnailpparof)mc51(ni6 )mc32(ni9,)Wk3(hutB000,01< dna)Wk3(hutB000,01>secnailpparof )mc03(sehcni21,)Wk51(hutB000,05< **)Wk51(hutB000,05>secnailpparof
wodniwdesolcyltnenamrepotecnaraelC=C tneverpotdednemmocer)mm503("21 noitasnednocwodniw tneverpotdednemmocer)mm922("9 noitasnednocwodniw
tiffosdetalitnevotecnaraelclacitreV=D latnozirohanihtiwlanimretehtevobadetacol retnecehtmorf)mm854(sehcni81foecnatsid lanimretehtfoenil )mm854("81)mm854("81
tiffosdetalitnevnuotecnaraelC=E)mm503("21)mm503("21
renrocedistuootecnaraelC=Fmuminim)mc7.21("5muminim)mc7.21("5
renrocedisniotecnaraelC=G •2-TH5.4VS-muminim)mc80.5("2 SSTH5.4VS-muminim)mc2.51("6 •2-TH5.4VS-muminim)mc80.5("2 SSTH5.4VS-muminim)mc2.51("6
enilretnecfoedisnihcaeotecnaraelC=H ylbmessarotaluger/retemevobadednetxe teef51fothgiehanihtiw)mc19(teef3 *ylbmessarotaluger/retemehtevoba teef51fothgiehanihtiw)mc19(teef3 **ylbmessarotaluger/retemehtevoba
teltuotnevrotalugerecivresotecnaraelC=I*)mc19(teef3**)mc19(teef3
telniylppusrialacinahcemnonotecnaraelC=J ynaottelnirianoitsubmocehtrognidliubot ecnailpparehto secnailpparof)mc51(ni6 )mc03(ni21,)Wk3(hutB000,01< dna)Wk3(hutB000,01>secnailpparof )mc19(sehcni63,)Wk03(hutB000,001< *)Wk03(hutB000,001>secnailpparof secnailpparof)mc51(ni6 )mc32(ni9,)Wk3(hutB000,01< dna)Wk3(hutB000,01>secnailpparof )mc03(sehcni21,)Wk51(hutB000,05< **)Wk51(hutB000,05>secnailpparof
telniylppusrialacinahcemaotecnaraelC=K*)m38.1(teef6 )m3(teef01nihtiwfievoba)mc19(teef3 **yllatnoziroh
devaproklawedisdevapevobaecnaraelC=L ytreporpcilbupnodetacolyawevid ‡)m31.2(teef7 ‡)m31.2(teef7
rokced,hcrop,adnarevrednuecnaraelC=M ynoclab ‡*)mc03(sehcni21 ‡)mc03(sehcni21
.edoCnoitallatsnIenaporPdnAsaGlanoitaN1.941B-ASCtnerrucehthtiwecnadroccanI* .sedoCsaGleuFlanoitaN45APFN/1.322ZSISNAtnerucehthtiwecnadroccanI** sevresdnasgnillewdylimafelgnisowtneewtebdetacolsihcihwyawevirddevaproklawedisaevobayltceridetanimrettonllahstnevA‡.sgnillewdhtob :roolfehthtaenebsedis2muminimanonepoyllufsiynoclabrokced,hcrop,adnarevfidettimrepylnO‡*.ylnO2-TH5.4VSrofselbitsubmoC-noNotecnaraelC"2•