Superior VF18NBTB User manual

P126857-01
VF18NBTB VF18PBTB VF24NBTB VF24PBTB
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
This appliance may be installed in an aftermarket permanently located, manufactured (mobile) home,
where not prohibited by local codes. This appliance is only for use with the type of gas indicated on the
rating plate. This appliance is not convertible for use with other gases.
WARNING: This appliance is for installation only in a solid-fuel burning masonry or UL127 factory-built
fireplace or in a listed ventless firebox enclosure. It is design-certified for these installations in accordance
with ANSI Z21.11.2. Exception: DO NOT install this appliance in a factory-built fireplace that includes
instructions stating it has not been tested or should not be used with unvented gas logs.
This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is installed. Provisions
for adequate combustion and ventilation air must be provided. Refer to Air for Combustion and Ventilation
section on Page 6 of this manual.
Installation and Operation Instructions
Unvented (Vent-Free) Gas Log Heater
Models
PFS
®
US
Report No. 09-131
P/N 126857-01 Rev. B 05/2017
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly could result in serious injury, death, or property damage.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
- WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the fire department.
- Installation and service must be performed by a qualified installer, service agency or the gas supplier.

SuperiorFireplaces.us.com 126857-01B2
SAFETY
TABLE OF CONTENTS
Safety .................................................................. 2
Product Identification........................................... 5
Local Codes......................................................... 5
Unpacking............................................................ 5
Product Features................................................. 6
Air For Combustion and Ventilation..................... 6
Installation ........................................................... 9
Operation........................................................... 17
Inspecting Burners ............................................ 20
Cleaning and Maintenance................................ 21
Troubleshooting................................................. 22
Specifications .................................................... 26
Wiring Diagram.................................................. 26
Replacement Parts............................................ 26
Service Hints ..................................................... 26
Technical Service............................................... 26
Parts.................................................................. 27
Accessories....................................................... 31
Warranty............................................................ 35
WARNING: FIRE, EXPLOSION, AND ASPHYXIATION HAZARD
Improperadjustment,alteration,service,maintenance,orinstallationofthis
heater or its controls can cause death or serious injury.
Read and follow instructions and precautions in User’s Information Manual
provided with this heater.
WARNING:Thisapplianceisfor
installationonlyinasolid-fuelburn-
ing masonry or UL127 factory-built
fireplace or in a listed ventless fire-
boxenclosure.Itisdesign-certified
fortheseinstallationsinaccordance
with ANSI Z21.11.2. Exception:
DO NOT install this appliance in a
factory-built fireplace that includes
instructions stating it has not been
tested or should not be used with
unvented gas logs.
WARNING: This is an unvented
gas-firedheater.Itusesair(oxygen)
fromtheroominwhichitisinstalled.
Provisionsforadequatecombustion
andventilationairmustbeprovided.
Refer to Air for Combustion and
Ventilation section on Page 6 of
this manual.
Thisappliancemaybeinstalledinan
aftermarket,* permanently located,
manufactured(mobile)home,where
not prohibited by local codes.
This appliance is only for use with
the type of gas indicated on the
rating plate. This appliance is not
convertibleforusewithothergases.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
WARNING:Thisproductcontains
and/or generates chemicals known
to the state of California to cause
cancer or birth defects or other re-
productive harm.
DANGER: Carbon monoxide
poisoning may lead to death!
WARNING:Vent-freeproductsare
prohibitedforbedroomandbathroom
installation in the Commonwealth of
Massachusetts.

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126857-01B 3
SAFETY
Continued
IMPORTANT: Read this owner’s
manual carefully and completely
beforetryingtoassemble,operateor
service this fireplace. Improper use
of this fireplace can cause serious
injury or death from burns, fire, ex-
plosion,electricalshockandcarbon
monoxide poisoning.
WARNING: Any change to this
heater or its controls can be dan-
gerous.
WARNING: Do not use a blower
insert,heatexchangerinsertorother
accessorynotapprovedforusewith
this heater.
Carbon Monoxide Poisoning: Early signsof
carbon monoxide poisoning resemble the flu,
with headaches, dizziness or nausea. If you
have these signs, the fireplace may not be
workingproperly. Get fresh air at once! Have
fireplace serviced. Some people are more af-
fectedby carbonmonoxidethanothers.These
include pregnant women, people with heart
or lung disease or anemia, those under the
influenceofalcoholandthoseathighaltitudes.
Natural and Propane/LP gases: Natural and
Propane/LP gases are odorless. An odor-
making agent is added to these gases. The
odorhelps youdetectagasleak.However,the
odor added to the gas can fade. Gas may be
present even though no odor exists.
Make certain you read and understand all warn-
ings. Keep this manual for reference. It is your
guidetosafe and properoperationofthisfireplace.
Due to high temperatures, the ap-
pliance should be located out of
traffic and away from furniture and
draperies.
Do not place clothing or other
flammable material on or near the
appliance. Never place any objects
on the heater.
Heaterbaseassemblybecomesvery
hot when running heater. Children
and adults should be alerted to the
hazard of high surface temperature
and shouldstay awayto avoidburns
orclothingignition.Heaterwillremain
hot for a time after shutdown. Allow
surface to cool before touching.
Young children should be carefully
supervisedwhentheyareinthesame
room with the appliance. When us-
ingthehand-heldremoteaccessory,
keepselectorswitchintheOFFposi-
tiontopreventchildrenfromturning
on burners with remote.
WARNING: Do not allow fans
to blow directly into the fireplace.
Avoid any drafts that alter burner
flame patterns. Ceiling fans can
createdrafts that alter burnerflame
patterns. Altered burner patterns
can cause sooting.
WARNING: Do not place log
scraps or volcanic stone on burner.
You must operate this heater with
a fireplace doors or screen in place
and fully closed. Unless provided
by other means, screens shall have
openings for introduction of com-
bustion air.
Keep the appliance area clear and
free from combustible materials,
gasolineandotherflammablevapors
and liquids.
Solid-fuels shall not be burned in a
fireplaceinwhichanunventedroom
heater is installed.

SuperiorFireplaces.us.com 126857-01B4
2. Donotplacepropane/LPsupplytank(s)inside
any structure. Locate propane/LP supply
tank(s) outdoors (propane/LP units only).
3. If you smell gas
• shut off gas supply
• do not try to light any appliance
• do not touchany electrical switch; do not
use any phone in your building
• immediately call your gas supplier from
aneighbor’sphone.Followthegassup-
plier’s instructions
• if you cannot reach your gas supplier,
call the fire department
4. This heater shall not be installed in a
bedroom or bathroom unless installed
as a vented appliance. See Installing
Damper Clamp Accessory for Vented
Operation, Page 12.
5. WARNING:
Before installing in a solid
fuel burning fireplace, the chimney flue
and firebox must be cleaned of soot,
creosote, ashes and loose paint by a
qualified chimney cleaner.Creosotewill
igniteifhighlyheated.Adirty chimney flue
may create an distribute soot within the
house. Inspect chimney flue for damage.
If damaged, repair flue before operating
heater.
6. Do not burn solid fuel in a masonry or
UL127 factory-built fireplace in which a
vent-free room heater is installed.
7.
If fireplace has glass doors, never operate
this heater with glass doors closed. If you
operate heater with doors closed, heat
buildup inside fireplace will cause glass to
SAFETY
Continued
burst.Makesuretherearenoobstructions
across openings of fireplace.
8. To prevent the creation of soot, follow the
instructionsinCleaning andMaintenance,
Page 21.
9. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater
off.If heated, the vapors from these prod-
ucts may create a white powder residue
within burner box or on adjacent walls or
furniture.
10. This heater needs fresh, outside air ven-
tilation to run properly. This heater has an
oxygen depletion sensing (ODS) pilot light
safety system. The ODS shuts down the
heater if not enough fresh air is available.
See Air for Combustion and Ventilation,
Page 6. If heater keeps shutting off, see
Troubleshooting, Pages 22-25.
11. Do not run heater
• where flammable liquids or vapors are
used or stored
• under dusty conditions
12. Donotuse thisheatertocook foodorburn
paper or other objects.
13. Do not use this room heater if any part
has been under water. Immediately call a
qualified service technician to inspect the
room heater and to replace any part of the
control system and any gas control which
has been under water.
14. Donotoperateheaterif any log is broken.
Do not operate heater if a log is chipped
(dime-sized or larger).
15. Turn heater off and let cool before servic-
ing or repairing. Make sure the selector
switchisinthe OFF position. Onlyaquali-
fied service person should install, service
or repair heater.
16. Make sure selector switch is in the OFF
position when you are away from home
for long periods of time.
17. Thisheater doesnot needtobeconnected
to any external electrical source.
18. Toprevent performance problems, do not
usepropane/LPfuel tank of less than 100
lb. capacity (propane/LP units only).
19. Provide adequate clearances around air
openings.
1. WARNING: This appliance is onlyfor
use with the type of gas indicated on
the rating plate.This appliance isnot
convertible for use with other gases.
Installation and repair should be done
by a qualified service person. The ap-
pliance should be inspected before use
and at least annually by a professional
service person. More frequent cleaning
may be required due to excessive lint
from carpeting, bedding material, etc. It
is imperative that control compartments,
burners, and circulating air passageways
of the appliance be kept clean.

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126857-01B 5
PRODUCT IDENTIFICATION
Figure 1 - Product Identification
Hand-Held
Remote Control Chassis
Assembly
Control
Knob
Log Set
Assembly
Selector
Switch
Flame
Adjustment
Knob
Remote
Receiver
Electronic
Igniter
LOCAL CODES 2. Remove control cover floor media compo-
nents.
3. Remove all protective packaging applied
to log set for shipment.
4. Check appliance for any shipping dam-
age. If appliance is damaged, promptly
inform dealer where you purchased the
appliance.
Install and use appliance with care. Follow all
localcodes.Intheabsence oflocalcodes, use
the latest edition of The National Fuel Gas
Code, ANSI Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
25 West 43rd Street, 4th floor
New York, NY 10036
National Fire Protection Association, Inc.
1 Batterymarch Park
Quincy, MA 02169-7471
UNPACKING
1. Remove log set assembly from carton.
NOTE: Do not pick up heater base as-
sembly by burners. This could damage
heater.Always handle base assembly by
grate.
CAUTION:Donotremovethe
data plates from the grate as-
sembly. The data plates contain
important warranty and safety
information.
COMMONWEALTH OF MASSACHUSETTS REQUIREMENTS
These appliances are approved for installation in the US state of Massachusetts if the fol-
lowing additional requirements are met:
• Un-vented Room Heaters shall be installed in accordance with 527 CMR 30.
• Installation and repair must be done by a plumber or gas fitter licensed in the Common-
wealth of Massachusetts.
• Theflexiblegasline connector used shall not exceed36inches(92centimeters)in length.
• The individual manual shut-off must be a T-handle type valve.
• Unvented appliances may NOT be installed in bedrooms or bathrooms.
• A working smoke detector must be installed in the area where vent-free appliances are
installed.
Seller of unvented propane or natural gas-fired supplemental room heaters shall provide
to each purchaser a copy of 527 CMR 30 upon sale of the unit.

SuperiorFireplaces.us.com 126857-01B6
PRODUCT FEATURES
OPERATION
Thisheateriscleanburning.Itrequiresnooutside
venting. There is no heat loss out a vent or up a
chimney. Heat is generated by realistic flames
and glowing ceramic logs/coals. This heater is
designedforvent-free operationwithfluedamper
closed. It has been tested and approved toANSI
Z21.11.2 standard for unvented heaters. State
and local codes in some areas prohibit the use
of vent-free heaters. This heater may also be
operated as a vented decorative (ANSI Z21.60)
product by opening the flue damper.
SAFETY DEVICE
Thisheaterhasa pilot with anOxygenDepletion
Sensing(ODS)safetyshutoffsystem.The ODS/
pilotisa requiredfeaturefor vent-freeroomheat-
ers. The ODS/pilot shuts off the heater if there
is not enough fresh air.
ELECTRONIC IGNITION SYSTEM
This system has an electronic igniter. This
system requires no matches or other sources
to light heater. Receiver requires 4 AA batteries
(included), hand-held remote control requires a
12-volt battery and a 3-volt button cell battery
for the LCD display (both included).
AIR FOR COMBUSTION AND VENTILATION
Today’s homes are built more energy efficient
than ever. New materials, increased insulation
andnewconstructionmethodshelpreduceheat
lossinhomes.Homeowners apply weather strip
and caulk around windows and doors to keep
the cold air out and the warm air in. During heat-
ing months, homeowners want their homes as
airtight as possible.
While it is good to make your home energy
efficient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning ap-
pliances need fresh air for proper combustion
and ventilation.
Exhaust fans, some fireplaces, clothes dryers
and some fuel-burning appliances draw air from
thehousetooperate.Youmustprovide adequate
fresh air for these appliances. This will ensure
properventingof ventedfuel-burningappliances.
PROVIDING ADEQUATE VENTILATION
The following are excerpts from National Fuel
Gas Code, ANSI Z223.1/NFPA 54,Air for Com-
bustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classifications:
WARNING: This heater shall not be
installed in a room or space unless the
required volume of indoor combustion
air is provided by the method described
in the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, the International Fuel
Gas Code, or applicable local codes.
Read the following instructions to en-
sure proper fresh air for this and other
fuel-burning appliances in your home.
1. Unusually Tight Construction
2. Unconfined Space
3. Confined Space
The information on Pages 6-8 will help you
classify your space and provide adequate
ventilation.
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combus-
tion and ventilation. However, in buildings of
unusually tight construction, you must provide
additional fresh air.
Unusually tight construction is defined as
construction where:
a. walls and ceilings exposed to the outside
atmosphere have a continuous water
vapor retarder with a rating of one perm
(6 x 10-11 kg per pa-sec-m2) or less with
openings gasketed or sealed and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to areas
such as joints around window and door
frames, between sole plates and floors,
between wall-ceiling joints, between
wall panels, at penetrations for plumb-
ing, electrical and gas lines and at other
openings.
If your home meets all three criteria above,
you must provide additional fresh air. See
Ventilation Air From Outdoors, Page 8.
If your home does not meet all three criteria
above, proceed to Determining Fresh-Air
Flow For Heater Location, below.
Confined and Unconfined Space
The National Fuel Gas Code, ANSI Z223.1/
NFPA54 allows two methods for determining
whether the space in which the heater is being

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126857-01B 7
AIR FOR COMBUSTION AND VENTILATION
Continued
installedisconfined orunconfinedspace.The
standardmethoddefinesa confinedspaceas
a space whose volume is less than 50 cubic
feetper1,000 Btu/hr (4.8m3perkw)of theag-
gregateinputratingofallappliancesinstalled
in that space and an unconfined space as
a space whose volume is not less than 50
cubic feet per 1,000 Btu/hr (4.8 m3per kw) of
the aggregate input rating of all appliances
installedinthat space.Roomscommunicating
directlywiththe spaceinwhichthe appliances
areinstalled*,throughopenings not furnished
with doors, are considered a part of the un-
confined space.
Where the air infiltration rate of a structure is
known,theKnownAirInfiltrationRate Method
may be used. Follow The National Fuel Gas
Code, ANSI Z223.1/NFPA 54 to use this
method to determine if the space is confined
or unconfined.
* Adjoining rooms are communicating only if
therearedoorless passagewaysorventilation
grills between them.
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Confined or
Unconfined Space Using the Standard
Method
Use this work sheet to determine if you have
a confined or unconfined space.
Space: Includesthe roomin whichyou willinstall
fireplace plus any adjoining rooms with door-
less passageways or ventilation grills between
the rooms.
1. Determine the volume of the space (length
x width x height).
LengthxWidth xHeight=__________cu. ft.
(volume of space)
Example:Space size 20 ft. (length) x 16 ft.
(width) x 8 ft. (ceiling height) = 2560 cu. ft.
(volume of space)
If additional ventilation to adjoining room
is supplied with grills or openings, add the
volume of these rooms to the total volume
of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example:2560 cu. ft. (volume of space) x
20= 51,200(maximum Btu/Hrthespacecan
support)
3. Add the Btu/Hr of all fuel burning appliances
in the space.
Vent-free fireplace __________Btu/Hr
Gas water heater* __________Btu/Hr
Gas furnace __________Btu/Hr
Vented gas heater __________Btu/Hr
Gas fireplace logs __________Btu/Hr
Other gas appliances* + _________Btu/Hr
Total = _________Btu/Hr
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
Example:
Gas water heater __________Btu/Hr
Vent-free fireplace + _________Btu/Hr
Total = _________Btu/Hr
4.
Compare the maximum Btu/Hr the space can
support with the actual amount of Btu/Hr used.
_______ Btu/Hr (maximum can support)
_______ Btu/Hr (actual amount used)
Example:51,200 Btu/Hr (maximum the
space can support)
73,000 Btu/Hr (actual amount of
Btu/Hr used)
The space in the above example is a confined
space because the actual Btu/Hr used is more
than the maximum Btu/Hr the space can sup-
port. You must provide additional fresh air. Your
options are as follows:
A. Rework worksheet, adding the space of an
adjoining room. If the extra space provides
anunconfined space,removedoortoadjoin-
ing room or add ventilation grills between
rooms. See Ventilation Air From Inside
Building, Page 8.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, Page 8.
C. Install a lower Btu/Hr fireplace, if lower Btu/
Hr size makes room unconfined.
If the actual Btu/Hr used is less than the maxi-
mum Btu/Hr the space can support, the space is
anunconfined space.You willneed noadditional
fresh air ventilation.
40,000
33,000
73,000

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AIR FOR COMBUSTION AND VENTILATION
Continued
Figure 3 - Ventilation Air from Outdoors
Outlet
Air
Ventilated
Attic
Outlet
A
ir
Inlet
Air
Inlet Air Ventilated
Crawl Space
To
Crawl
Space
To Attic
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconfined space. When ventilating to an
adjoining unconfined space, you must provide
two permanent openings: one within 12" of the
ceilingandonewithin12"oftheflooronthewall
connecting the two spaces (see options 1 and
2, Figure 2). You can also remove door into
adjoiningroom(seeoption3,Figure 2).Follow
the National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation
for required size of ventilation grills or ducts.
Or
Remove
Door into
Adjoining
Room,
Option
3
Ventilation Grills
Into Adjoining Room,
Option 2
Ventilation
Grills
Into Adjoining
Room,
Option 1
12"
12"
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation
grills or ducts. You must provide two perma-
nent openings: one within 12" of the ceiling
andonewithin12"ofthefloor.Connectthese
items directly to the outdoors or spaces open
to the outdoors. These spaces include attics
and crawl spaces. Follow the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation for required size
of ventilation grills or ducts.
IMPORTANT:Do not provide openings
for inlet or outlet air into attic if attic has a
thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
Figure 2 - Ventilation Air from Inside Building
WARNING:Iftheareainwhich
theheatermaybeoperateddoes
notmeettherequiredvolumefor
indoorcombustionair,combus-
tion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code, ANSI Z223.1/NFPA
54, the International Fuel Gas
Code,orapplicablelocalcodes.

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126857-01B 9
INSTALLATION
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as, but
not limited to, tobacco smoke,
aromatic candles, cleaning flu-
ids,oilorkerosenelamps,etc.)in
the air exist, may discolor walls
or cause odors.
WARNING:Beforeinstalling
in a solid fuel burning fireplace,
the chimney flue and firebox
must be cleaned of soot, creo-
sote, ashes and loose paint by
a qualified chimney cleaner.
Creosote will ignite if highly
heated.Adirtychimneyfluemay
createanddistributesootwithin
thehouse.Inspectchimneyand
firebox flue for damage. If dam-
aged, repair flue and firebox
before operating heater.
WARNING: Never install the
heater
• in a bedroom or bathroom
unless installed as a vented
unit, see Page 12
• in a recreational vehicle
• wherecurtains,furniture,cloth-
ingorotherflammableobjects
arelessthan42"fromthefront,
top or sides of the heater
• in high traffic areas
• in windy or drafty areas
NOTICE: This appliance is in-
tended for supplemental heat-
ing. Use this heater along with
yourprimaryheatingsystem.Do
notinstallthisheaterasyourpri-
mary heat source. If you have a
centralheatingsystem,youmay
run system’s circulating blower
whileusingheater.Thiswillhelp
circulatetheheatthroughoutthe
house. In the event of a power
outage, you can use this heater
as your primary heat source.
NOTICE: State or local codes
mayonlyallow operationofthis
applianceinaventedconfigura-
tion. Check your state or local
codes.
WARNING: A qualified ser-
vice person must install heater.
Follow all local codes.
WARNING: Make sure the
selector switch is in the OFF
positionbeforeinstallingheater.
WARNING: Seal any fresh
air vents or ash clean-out doors
located on floor or wall of fire-
place.Ifnot, draftingmaycause
pilot outage or sooting. Use a
heat-resistant sealant. Do not
seal chimney flue damper.
IMPORTANT:Vent-freeheatersaddmoisture
totheair.Although this is beneficial, installing
heater in rooms without enough ventilation
air may cause mildew to form from too much
moisture.SeeAir for CombustionandVentila-
tion, Page 6.

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INSTALLATION
Continued
Carefully follow the instructions below. This
will ensure safe installation into a masonry,
UL127-listed manufactured fireplaceorlisted
vent-free firebox enclosure.
Minimum Clearances For Side Combustible
Material, Side Wall and Ceiling
A. Clearances from the side of the fireplace
cabinet to any combustible material and
wall should follow diagram in Figure 4,
Page 10.
Example:Theface ofamantel,bookshelf,
etc. is made of combustible material
and protrudes 3-1/2" from the wall. This
combustible material must be 4" from the
side of the fireplace cabinet (see Figure
4, Page 10).
NOTE: When installing your gas logs into
a manufactured firebox, follow firebox
manufacturer’s instructions for minimum
clearances to combustible materials.
B. Clearances from the top of the fireplace
opening to the ceiling should not be less
than 42".
LOG SIZING REQUIREMENTS
Minimum Firebox Size Center
Log Size Height Depth Front Width Rear* Width
18" 17" 14" 24" 20"
24" 17" 14" 28" 22"
*Measured at 14" depth
Figure 4 - Minimum Clearance for
Combustible to Wall
*Minimum 16" from Side Wall
*
Example
WARNING:Thisapplianceis
equipped for either natural gas
or propane/LP gas but not both.
Gas type is indicated on the rat-
ingplate.Fieldconversionisnot
permitted.
CHECK GAS TYPE
Usethecorrecttypeofgas(naturalorpropane/
LP). If your gas supply is not the correct gas
type, do not install appliance. Call the dealer
whereyoupurchased theappliancefor proper
type appliance.
WARNING: Maintain the
minimumclearances.Ifyoucan,
providegreaterclearancesfrom
floor,ceilingandadjoining wall.
MINIMUM FIREPLACE CLEARANCE
TO COMBUSTIBLE MATERIALS
Side Wall 16", Ceiling 42"
Floor 5", Front: 36"
INSTALLATION AND CLEARANCES
FOR VENT-FREE OPERATION
NOTICE: Nonthermostat control
heaters may be used as a vented
product.Ifso,youmustalwaysrun
heater with chimney flue damper
open. If running heater with
damper open, noncombustible
material above fireplace opening
is not needed. Go to Installing
Damper Clamp Accessory for
Vented Operation, Page 12.
Maintain adequate clearances for accessibility for purposes
of servicing and proper operation.