INSTALLATION AND OPERATION MANUAL
Direct-Vent Gas
Fireplace Inserts
The Ravenna™ fireplace insert is factory equipped for 40,000 BTU
input and can be converted to 33,000 using the smaller orifice provided.
Retain These Instructions For Future Reference
P/N 775,218M Rev. B, 12/2007
A French manual is available upon request. Order P/N 775,218CF. Ce manuel d’installation
est disponible en francais, simplement en faire la demande. Numéro de la pièce 775,218CF.
Shown with Cast Pillar face
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
US
Ravenna™ 33/40 (RDV33/40)
Report No. 050-S-15c-5
of Massachusetts requirements
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.
• Suitable for installation into masonry or factory built fireplaces. These appliances may be installed in an after-
market 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™ gas-burning appliances are designed for use as a supplemental heater. They are not intended for
continuous use as a primary heat source.
AVERTISSEMENT:Assurez-vousdebiensuivrelesinstruc-
tionsdonnées danscettenoticepourréduireauminimum
le risque d’incendie ou d’explosion ou pour éviter tout
dommage matériel, toute blessure ou la mort.
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.
POURVOTRESÉCURITÉ: Nepasentreposerniutiliserd'essence
ni d'autres vapeurs ou liquides inflammables à proximité de
cet appareil ou de tout autre appareil.
Do not store or use gasoline or other flammable
vapors or liquids in the vicinity of this or any other
appliance.
POUR VOTRE SÉCURITÉ: Que faire si vous sentez une odeur
de gaz:
WHAT TO DO IF YOU SMELL GAS:
• Ne pas tenter d'allumer d'appareil.
• Ne touchez à aucun interrupteur.
• Ne pas vous servir des téléphones se trouvant dans le bâti-
ment
• 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 des incendies.
L'installation et l'entretien doivent être assurés par un
installateur ou un service d'entretien qualifié ou par le
fournisseur de gaz.
• 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.
Table of Contents
Cautions & safety ..................................................................................... 2
orifiCe size / altitude adjustment .................................................................... 4
fireplaCe requirements ................................................................................ 4
Codes & approvals..................................................................................... 4
new york City, new york (mea) ................................................................ 5
requirements for the Commonwealth of massaChusetts ........................................ 5
pre-installation......................................................................................6-8
features............................................................................................ 6
paCkaging list ..................................................................................... 6
ratings ............................................................................................. 6
insert & fireplaCe dimensions .................................................................... 7
ClearanCes to Combustibles ....................................................................... 8
insert leveling..................................................................................... 8
installation......................................................................................... 9-11
venting installation ............................................................................... 9
zero ClearanCe fireplaCe installation ...........................................................10
briCk panel & log set installation..............................................................10
surround panels installation ....................................................................11
faCe installation..................................................................................11
gas line installation..................................................................................12
gas pressure requirements ......................................................................12
lp & natural gas supplies ......................................................................12
air shutter adjustment ..........................................................................12-13
operating instruCtions............................................................................13-16
pre-lighting CheCklist ...........................................................................13
lighting instruCtions .............................................................................13
flame Color & behavior..........................................................................15
paint Curing ......................................................................................15
quiet operation ...................................................................................15
blower operation.................................................................................15
optional wall thermostat .......................................................................15
operating options ................................................................................16
millivolt Control system ........................................................................16
maintenanCe & serviCing..........................................................................17-18
maintenanCe CheCklist............................................................................17
glass maintenanCe................................................................................17
door removal.....................................................................................18
fuel Conversion ..................................................................................18
blower removal ..................................................................................18
troubleshooting.......................................................................................19
replaCement parts ....................................................................................20
aCCessories........................................................................................20-21
insert labels ......................................................................................22-23
produCt referenCe information.......................................................................24
3
IMPORTANT: When installing these appliances into a fac-
tory built fireplace or heat-form, the air flow within and
aroundthefireplaceshallnotbealteredbytheinstallation
of the insert (i.e. DO NOT BLOCK louvers or cooling air
inlet or outlet ports, circulating air chambers in a steel
fireplace liner or metal heat circulator).
Orifice Size/Altitude Adjustment
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. Chang-
ing the orifice should only be done by a qualified service
technician. Contact your Lennox Hearth Products dealer for
proper orifice sizes.
WARNING
The Ravenna™ Insert
THIS FIREPLACE HAS BEEN ALTERED TO
ACCOMMODATE A FIREPLACE INSERT AND
SHOULD BE INSPECTED BY A QUALIFIED
PERSON PRIOR TO RE-USE AS A
• Mustconformwithalllocal,state,andnationalinstallation
codes. In the absence of local codes, the installation must
conform with NationalFuelGasCodeANSIZ223.1-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.
CONVENTIONAL FIREPLACE.
Smoke Detectors
• Mobile home installations must conform with the Mobile
Home Construction and Safety Standard, Title 24 CFR,
Part3280(inCanadaCAN/CSAZ240MH),or,whensucha
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 pro-
pane.
• Is not for use with solid fuels.
• Is approved for sitting rooms and/or bedrooms.
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.
Codes & Approvals
CertifiCation
Fireplace Requirements
Gas appliances must be tested and certified by a nation-
ally recognized testing and certification laboratory to ANSI
(American National Standard Institute) gas appliance safety
standards.
These heaters are designed to be installed into an existing
masonry fireplace (built to UBC 37 or ULC S628 standards)
or factory built solid fuel, wood burning fireplace (listed to
UL127orULCS610)only. Allexhaustgasesmustbevented
outsidethestructure. Combustionairisdrawnfromoutside
the structure. When installing in a factory built fireplace, the
fireplace grate must be removed and the damper must be
removed or secured open.
This insert has been tested and certified by OMNI -Test
LaboratoriestoANSIZ21.88-2005/CSA2.33-2005Standard
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 installation 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.
If the factory-built fireplace has no gas access hole(s)
provided, an access hole of 1-1/2 inches (38 mm) or less
may be drilled through the lower sides or bottom of the
firebox in a proper workmanship like manner. This access
hole must be plugged with a non-combustible insulation
after the gas supply line has been installed. The installer
must mechanically attach the marking supplied with the gas
fireplace insert to the inside of the firebox of the fireplace
into which the gas fireplace insert is installed.
Check all local building and safety codes before installation.
The installation instructions and appropriate code require-
ments must be followed exactly and without compromise.
In the absence of local codes the following standards and
codes must be followed.
4
New York City, New York (MEA)
Inspection
The state or local gas inspector of the side wall horizontally vented gas
fueledequipmentshallnotapprovetheinstallationunless,uponinspection,
the inspector observes carbon monoxide detectors and signage installed
in accordance with the provisions of 248 CMR 5.08(2)(a)1 through 4.
Installation of these fireplaces are approved for installation in New York
City in the US state of New York (MEA#: 138-07-E).
Commonwealth Of Massachusetts
Requirements
Exemptions
The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
Note: The following requirements reference various Massachusetts
• The equipment listed in Chapter 10 entitled “Equipment Not Required
To Be Vented” in the most current edition of ANSI Z233.1 / NFPA 54
(In Canada CAN/CSA B149.1 - current edition) as adopted by the
Board; and
and national codes not contained in this document.
Forallsidewallhorizontallyventedgasfueledequipmentinstalledinevery
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:
• 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
Installation Of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gas-fitter 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 gas-fitter shall observe that a bat-
tery 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.
Gas Equipment Venting System Provided
WhenthemanufacturerofProductApprovedsidewallhorizontallyvented
gas equipment provides a venting system design or venting system com-
ponentswiththeequipment,theinstructionsprovidedbythemanufacturer
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.
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.
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
fluegases, butidentifies“specialventingsystems”, thefollowingrequire-
ments shall be satisfied by the manufacturer:
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,thatduringsaidthirty(30)dayperiod,abatteryoperatedcarbon
monoxide detector with an alarm shall be installed.
• Thereferenced“specialventingsystem”instructionsshallbeincluded
with the appliance or equipment installation instructions; and
Approved Carbon Monoxide Detectors
• 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.
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.
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.
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.”
• 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.
5
paCkaging list
Pre-Installation
To install a Ravenna™ insert, an insert body, face, surround
(flange) kit, and brick panel are required.
features
Installation Options
Manufactured (Mobile) Home
Natural Gas Or Propane (LP)
Bedrooms
Insert Body Packaging List
1 Insert Body with Burner Cassette
1 Set of Refractory Brick Panels
1 Log Set
Optional Wall-mounted Or Remote Thermostat
1 Ravenna 40
Electrical
1 #36 Burner Orifce (to convert to Ravenna 33)
1 Bag of Embers
The standard fan motor requires 120 Volts AC for operation.
The fireplace is not dependent on the fan or an outside elec-
trical supply to operate. WARNING - Electrical Grounding
Instructions-Thisapplianceisequippedwithathree-prong
(grounding) plug for your protection against shock hazard
and should be plugged directly into a properly grounded
three-prong receptacle. Do not cut or remove the ground-
ing prong from this plug.
1 Fasteners: 6 slotted 1/4" truss screws
6 speed nuts
9 spring clips
3 plastic adhesive wire restraints
1 Installation and Operation Manual
Decorative Faces - One Required
Millivolt Valve
Traditional
Foundry
Cast pillar
Arch inset
Screen
This insert is operated with a millivolt valve and therefore
burns even during a power outage.
Surround Kits - One Required
Traditional 1-pc. (41"W x ꢀ9"H)
Fuel
This insert comes from the factory equipped to burn natural
gas at a specified elevation. The insert can be converted
to burn LP (liquid propane) by 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.
Traditional 3-pc.(41"W x ꢀ9"H, 48"W x ꢀ9"H, 41"W x
33"H or 48"W x 33"H)
Cast Iron (45-1/ꢀ"W x 30"H-Cast Pillar face only)
Surround Kit Contents
1 Top Surround
2 Side Surrounds
3 Gold or Nickel Plated Trim Pieces
2 Elbowed Trim Fasteners
Ravenna 40 (RDV40)
Ravenna 33 (RDV33)
NATURAL GAS LP GAS
RATINGS
NATURAL GAS
LP GAS
Max/Min Input BTUh 0-ꢀ,000 Feet
40,000/ꢀ8,000 37,500/ꢀꢁ,000 33,000/ꢀ4,000 33,000/ꢀ4,000
(0-ꢁ10 M)u
Manifold Pressure (IN. WC)
Min. Inlet Pressure (IN. WC)
3.5
5.0
10.0
10.5
83%
3.5
5.0
10.0
10.5
83%
Maximum heat output BTUs/hour-
steady state (depending on vent
configuration)v
83%
83%
ꢁ7.17%
1/8”
ꢁ9.07%
#49
ꢁ5.55%
#3ꢁ
ꢁ7.80%
#51
P4 Efficiency
w
Orifice (DMS) 0-ꢀ,000 Feet (0-ꢁ10
M)u
uUnit factory equipped for 0-ꢀ000 FT/0-ꢁ10 M, In Canada 0-4500 FT/0-1370 M
vThe Steady State Efficiency numbers based on maximum vent configuration.
wTested to CSA P.4.1-0ꢀ “Testing Method for Measuring Annual Fireplace Efficiency.
Electrical Rating: 1ꢀ0 VAC, ꢁ0 HZ, Less Than ꢀ Amps
ꢁ
insert dimensions
minimum fireplaCe Cavity
31-1/4”
(794mm)
13-3/4”
(349mm)
15-3/4"
(400mm)
A
B
Top View
C
D
Figure 1
15-3/4"
(400mm)
Figure 3
CAUTIONS
• Trim panels or surrounds must not seal ventila-
tion openings in the existing fireplace that the
appliance is installed in.
19-1/2"
(495mm)
19-3/4
(502mm)
• The fireplace in which this gas insert is to be
installed must be thoroughly cleaned if it has
been used to burn wood or synthetic logs. Have
the chimney and all inside surfaces of the fire-
place brushed and vacuumed so that no soot,
embers, or loose combustion deposits can be
drawnintotheheatcirculationblowerandblown
into the living area.
Figure ꢀ
Side View
Insert Dimensions
• Ifanyportionofthechimneysystemshowssigns
of structural or mechanical weaknesses, such
as: cracks, leaky joints, corroded or warped
surfaces, the faulty portion must be repaired
or replaced prior to installing this appliance.
• The factory built firebox must accept the insert
withoutmodificationotherthanremovingbolted
or screwed together pieces such as baffles /
smoke shelf / deflectors, ash lips, glass door,
screen or door tracks, log grates, refractory or
masonry lining and damper assemblies. Any
fireplacecomponent,whichisremoved,mustbe
retainedsotheycanbereinstalledtorestorethe
fireplace to its original operating condition. The
removal of any part must not alter the integrity
oftheoutershellofthepre-engineeredfireplace
cabinet in any way. Any parts removed must be
replaceable. If any components are removed
from (or altered) from the existing fireplace,
a Warning Label (see Page 4) must be affixed
inside the fireplace firebox, so that it shall be
visibleuponremovalofthefireplaceinsert. Note:
RTV high temperature silicone is an approved
adhesive to affix the label.
Width of insert behind Surround Panels
ꢀ8" (711mm)
Rear height
19-3/4" (50ꢀmm)
1ꢁ" (40ꢁmm)
Insert depth into fireplace
Flue collar diameter (OD)
ꢀ-15/1ꢁ"
ꢀ-15/1ꢁ" (75mm)
minimum fireplaCe opening required
A = 29-3/4” (756mm) Front Opening
B = 19-1/2” (495mm) Height
C = 19” (483mm) Rear Width
D = 16” (406mm) Fireplace Depth
* Top air duct will need to be removed for short ZC applica-
tions. Replace tap tights when removed.
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
7
faCing and mantel ClearanCes
PleasenotethattheRDV33mantelclearancesare4"lessthantheRDV40
mantel clearances as shown in Figures 4A (RDV40) and 4B (RDV33).
Clearances to Combustibles
IMPORTANT: If unit is converted to an RDV33 from an
RDV40, the clearances to combustibles can be reduced
as shown on this page.
3"/76mm
3"/76mm
WARNING:IfthisunitiseverconvertedbacktoanRDV40,
ensure that the clearances are correct for this model.
3"/76mm
1-1/2”
38mm
RDV40
Facing &
Mantel -
Side View
minimum ClearanCes to Combustibles
Minimum clearances include any projections such as
shelves, window sills, mantels, spacers/standoffs or
surfaces to combustible construction etc. above the ap-
pliance. Paint or lacquer used to finish the mantel must
be heat resistant in order to avoid discoloration.
43-1/2”
1105mm
37-1/2”
953mm
40-1/2”
35-1/2”
902mm
1029mm
The letters below, E through J, correspond to Figure 5
showing minimum clearances required from the appliance
to combustibles and the minimum projection of the hearth
extension.
Figure 4A
E = From Top Facing or Mantel to Bottom of Insert -
.2 RDV40 = 35-1/2”(902mm) and RDV33 = 31-
1/2”(800mm)
3"/76mm
3"/76mm
F = 25-1/2" From Center of Glass Door to Side Facing or
Wall - RDV40 = 25.5”(648mm) and RDV33 = 25.5”
(648mm)
3"/76mm
1-1/2”
38mm
J = 10.5” (267mm) Mantel to Bottom of Insert -
.2 RDV40 = 43”(1092mm) and RDV33 = 39”(991mm)
RDV33
Facing &
Mantel -
Side View
39-1/2”
1003mm
33-1/2”
851mm
hearth proteCtion
G = Minimum Hearth Protection from Front of Insert*
H = Vertical Distance from Insert Bottom to Combustible
Material.
36-1/2”
927mm
31-1/2”
800mm
G
H
14”(356mm)
0”(0mm)
10”(254mm)
2”(21mm)
0”(0mm)
RDV40
RDV33
4”(102mm)
Figure 4B
Mantel
G
H
13”(330mm)
0”(0mm)
10”(254mm)
2”(21mm)
0”(0mm)
MANTEL
4”(102mm)
Trim
TRIM
F
Note: Hearth protection to be min. 3/8” (10mm) thick non-
combustible or equivalent, with a k factor of .84.
J
E
C
L
insert leveling
Ateachfrontandrearcorneroftheinsertisanadjustableleg
provided to level the insert should the hearth of the fireplace
beuneven.Toadjustthelegs,loosenthetwo5/32"allenhead
screws, move the leg to the desired height, and then tighten
the screws. Repeat these steps for each adjusting leg.
H
G
Hearth / Floor Protection
Figure 5 - Clearances
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
8
The existing fireplace chimneys may take
various contours which the flexible liners will
accommodate.However,keeptheflexibleliner
as STRAIGHT as possible, avoid unnecessary
bending.
The standard cap
inTerminationKit,
H0908, is a high
wind cap
Installation
venting installation
Your Lennox™ gas insert must be vented to the outside
in accordance with the current edition of the National Fuel
Gas Code ANSI-Z223.1 (In Canada, the current CAN/CSA
B149.1installationcode). Theinsertmustnotbeconnected
to a chimney flue serving a separate solid fuel burning ap-
pliance.
Vertical Cap
Termination
Connector
This gas insert requires a 3” diameter listed flex liner. The
vent should terminate with a listed direct vent termination
cap. The chimney should be sealed around the cap to pre-
vent air and rain from entering the chimney. Adhere to the
vent manufacturer's instructions for installation and vent
termination. These appliances are approved for use with
the following vent kits.
Liner Requirements:
Use 3" (7ꢁ mm) diameter listed gas
vent liner (UL1777 ONLY) for the
EXHAUST
Use 3" (7ꢁ mm) diameter listed
liner (UL 181 or UL1777) for the
AIR INTAKE.
Exhaust
Vent Kits *
Vertical Height Min. = 10 ft. (3.1 M)
Vertical height Max. = 35 ft. (10.7 M)
Note: Measured from flue collar on
unit to the end of the vent pipe or liner
Intake
Cat. No.
Model
Description
H0909
FKDVI Flex Liner Kit, DVI 3” X 35’
(requires 2, one for exhaust, and one for intake)
H0908
TKDVI Termination Kit, DVI
(termination cap and flashing)
The flexible vent pipe
must NOT be allowed to
sag behind insert or in
fireplace flue.
vertiCal venting
The vent pipes must be connected to the proper collars on
the unit and the exhaust vent pipe must be connected to the
termination cap or the unit will not operate. The combustion
air vent pipe can be connected to the termination cap or it
can terminate inside the chimney.
The bottom opening of the chimney must be sealed around
the vent pipes if the combustion air vent is not connected
to the termination cap. Use unfaced fiberglass insulation to
seal around the vent pipes. The insulation may give off an
odor during the first hour of operation.
Combustion Air Intake
Figure ꢁ
Makesurethatbothlinerswillpassthroughexistingdamperarea.Remove
or lock damper to allow the passage of the flexible liners. If the damper
will not allow the passage of both liners, DO NOT PROCEED FURTHER.
(If fireplace is masonry) Consult a local mason for removal of the damper
without risk of structural damage or leakage (if the fireplace is factory
built) The appliance may NOT be installed into the fireplace.
NOTE: The minimum vertical rise (exhaust vent) is 10 feet
(3.1 M) and the maximum vertical rise is 35 feet (10.7 M).
These dimensions are measured from the starting collars
of the unit to the end of the vent pipe.
Thefireplaceandfireplacechimneymustbecleanandingood
workingorderandconstructedofnon-combustiblematerials.
Inspect chimney cleanouts for proper fit and seal.
WARNING
Direct-VentFireplaceInsertVentRequirements-Useliner
listed to UL181 (Factory-made Air Ducts And Air Connec-
tors)orUL1777(ChimneyLiners)fortheAIRINTAKE. Use
liner listed to UL1777 ONLY for the EXHAUST.
Donotsubstitutetheheat-ratedflexliner(UL1777)forthe
exhaustwithanyothertypelinerorafiremayresultcaus-
ing property damage, personal injury or loss of life.
*Otherapprovedventcomponentsinclude;StandardSimpsonDura-ventCo-linear
Chimney Liner Kit, Direct Vent Termination #991, Liner Termination Kit (includes
termination connector and flashing) #923GK & 3" x 35' Alum Flex #2280
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
9
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