BuckMaster FP-327-ZC User manual

Page 1
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.
 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.
 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.
This is an unvented gas-fired heater. It uses air (oxygen) from the room in which it is in-
stalled. Provisions for adequate combustion and ventilation air must be provided. Refer to
section “ Producing Adequate Ventilation” page 14.
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 appli-
ance is not convertible for use with other gases.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
MANUFACTURED BY
NEW BUCK CORPORATION
200 ETHAN ALLEN DRIVE,
SPRUCE PINE, N.C. 28777
www.buckstove.com
This appliance is intended for supplemental heating.
This heater shall not be installed in a bedroom or
bathroom.
Revised January 2013
MODEL FP-327-ZC VENT-FREE GAS HEATER
MAY BE INSTALLED AS A ZERO CLEARANCE FIREPLACE OR
WITH AN OPTIONALWOODEN SURROUND

Page 2

Page 1
TABLE OF CONTENTS
Safety Information and Warnings...........................................................................................................3
Installation ..............................................................................................................................................6
Fireplace and Framing Dimensions........................................................................................................7
Fireplace Clearances...............................................................................................................................8
Finishing Your Fireplace ........................................................................................................................9
Mantel Profiles For Zero Clearance......................................................................................................10
Mantel Installation...............................................................................................................................11
Mobile Home Installation.....................................................................................................................13
Producing Adequate Air For Combustion And Ventilation .................................................................14
Ventilation Air For Combustion And Ventilation From Inside Building.............................................16
Ventilation Air For Combustion And Ventilation From Outdoors.......................................................17
Gas Connection.....................................................................................................................................18
Gas Pressure Check ..............................................................................................................................19
Placement of Logs ................................................................................................................................20
Lighting Instructions - Millivolt Valve.................................................................................................21
Lighting Instructions - Modulating Valve............................................................................................25
Flame Check .........................................................................................................................................29
Wiring Diagram....................................................................................................................................30
Important Safeguards............................................................................................................................32
Trouble Shooting ..................................................................................................................................33
Service/Replacement Parts ...................................................................................................................37
Warranty/Owner Registration................................................................................................Back Cover

Page 2
WARNING
This appliance is equipped for (natural or propane) gas .
Field conversion is not permitted.
SECTION I
SAFETY INFORMATION WARNINGS
IMPORTANT: READ THIS OWNER’S MANUAL CAREFULLY AND COMPLETELY
BEFORE TRYING TO ASSEMBLE, OPERATE, OR SERVICE THE APPLIANCE.
IMPROPER USE OF THESE LOGS CAN CAUSE SERIOUS INJURY OR DEATH FROM
BURNS, FIRE, EXPLOSION, AND CARBON MONOXIDE POISONING.
Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness, and/or
nausea. If you have these signs, the heater may not be working properly. Get fresh air at once!
Have heater serviced. Some people-pregnant women, persons with heart or lung disease,
anemia, those under the influence of alcohol, and those at high altitudes-are more affected by
carbon monoxide than others.
CAUTION: Strong drafts, such as a ceiling fan placed directly in front of the heater
(pulling from either direction) may create sooting. Sooting will discolor
walls.
1. The installation must conform with local codes ,or in the absence of local codes, with the
National Fuel Gas Code, ANSI Z223.1/NFPA54.
2. This appliance may be installed in an After-Market* Manufactured (Mobile) Home,
where not prohibited by state or local codes.
* (After-Market: Completion of sale, not for purpose of resale from the manufacturer.)
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.
NOTE: See Section VII, “Producing Adequate Air For Combustion And Ventilation” page 14.
IMPORTANT: VENT-FREE HEATERS ADD MOISTURE TO THE AIR. ALTHOUGH THIS
IS BENEFICIAL, INSTALLING HEATER IN ROOMS WITHOUT ADEQUATE
VENTILATION MAY CAUSE MILDEW TO FORM FROM TOO MUCH MOISTURE.
3. Never install this heater:
 in a recreational vehicle, bathroom, bedroom, or any other sleeping quarters
 where curtains, furniture, clothing, or other flammable objects are less than 42" from the
front of the heater
 in high traffic areas or in windy areas
4. Two models are available. One specific model for propane (LP), and one for natural gas.
Use the correct type gas for your home. Do not convert from one gas type to another.
NOTE: This appliance complies with ANSI Z21.11.2b-2010 Unvented Room Heater.
WARNING: ANY CHANGE TO THIS HEATER OR ITS CONTROLS CAN BE
DANGEROUS.

Page 3
5. If this heater is used with propane gas, do not place propane supply tank (s) inside any structure.
6. What To Do IF You Smell Gas:
- Shut off gas supply.
- 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 neighbor’s phone.
- Follow the gas supplier’s instructions.
- If you cannot reach your gas supplier, call the fire department.
7. When operated for the first time, the logs may emit a “paper burning” smell. This smell will gradually
diminish and will be totally eliminated after the first few hours of operation. Run the gas logs with the
flue damper open during this time. Do not use blower at this time.
8. This heater shall not be installed in unusually tight construction unless provisions are provided for
adequate combustion and ventilation air. See Producing Adequate Air For Combustion And
Ventilation, page 14.
9. Surface of gas logs becomes very hot when operating. Keep children and adults away from hot surface.
Gas logs will remain hot for sometime after shutdown. Allow surface to cool before touching.
10. Do not place clothing or other flammable material on or near the appliance.
11. If equipped, fresh air damper must be closed.
12. Keep appliance area clean and free from combustible materials, gasoline and other flammable
flammable vapors and liquids. .
13. If burner shuts off, do not relight until you provide fresh outside air. If burner continues to shut off,
have unit serviced.
14. Do not use this heater if any part has been under water. Immediately call 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.
15. Turn off the heater and let cool before servicing.
16. These logs are made of bonded fiber. When removing logs and base, do not damage the bonded
material. If the material is damaged extensively, loose fiber dust could be emitted into the air.
17. Any safety screen or guard removed for servicing an appliance must be replaced prior to operating the
heater.
18. This appliance is intended for supplemental heating.
18. WARNING: Any change to this heater or its controls can be dangerous.
19. Installation and repairs should be performed by a qualified service person. The appliance 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.

Page 4
20. All heater screens must be kept clean when operating the gas logs.
21. WARNING: Failure to keep the primary air opening(s) of the burner(s) clean may result in sooting
and property damage.
22. Do not use this heater for burning trash or cooking. Never place matches, paper, garbage or any
other material on top of logs or into the flames.
23. Do not install or operate this heater in areas where impurities in the air exist (such as tobacco smoke
or heavy cooking grease). Particles from impurities may discolor walls.
24. Due to high temperatures, the appliance should be located out of traffic and away from furniture and
draperies.
25. Children and adults should be alerted to the hazards of high surface temperature and should stay
away to avoid burns or clothing ignition.
26. Young children should be carefully supervised when they are in the same room with the appliance.
27. An unvented room heater having an input rating of more than 10,000 Btu per hour shall not be
installed in a bedroom or bathroom.
28. The appliance and its appliance main gas valve must be disconnected from the gas supply pipping
system during any pressure testing of that system at test pressure in excess of 1/2 psi (3.5 kPa).
29. The appliance must be isolated from the gas supply piping system by closing its equipment shut-off
valve during any pressure testing of the gas supply piping system at test pressures equal to or less
than 1/2 psi (3.5 kPa).
30. WARNING: Do not allow fans to blow directly into fireplace. Avoid any drafts that alter burner
flame patterns.
31. WARNING: Do not use a blower insert, heat exchanger insert or other accessory not approved for
use with this heater.

Page 5
CHOOSING THE LOCATION FOR YOUR FIREPLACE:
Figure 1 shows some of the many ways your fireplace may be installed. Consider the traffic pattern
in your room and the location of doors and windows. Moving air from ceiling fans, open doors, and
hot air grills may cause the flames to soot. If a disturbance is found that affects the flames, it must be
eliminated by turning off the ceiling fan, closing the door, or closing or moving the hot air register. A
corner location may be best where space is limited.
Your fireplace weighs no more than some of your fine furniture. If the fireplace is located near a load
bearing wall, additional supports to the foundation will not be necessary. HEAVY FACINGS, SUCH
AS BRICK, STONE, ETC., MAY REQUIRE ADDITIONAL FOUNDATION SUPPORT.
NOTE: If this appliance is installed directly on carpeting, tile or other combustible material,
other than wood flooring, the appliance shall be installed on a metal or wood panel extending
the full width and depth of the appliance.
SECTION II
ZERO CLEARANCE INSTALLATION
The installation must conform with local codes ,or in the absence of local codes, with the
National Fuel Gas Code, ANSI Z223.1/NFPA54.
This appliance may be installed in an After-Market* Manufactured (Mobile) Home,
where not prohibited by state or local codes.
* (After Market: Completion of sale, not for the purpose of resale from the manufacturer).
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.
NOTE: See “Producing Adequate Air For Combustion And Ventilation” page 14.
GAS LINE
The gas supply line and electrical
supply must be installed before
framing in the fireplace by a licensed
installer.
DRAFTS
Do not locate the fireplace in high
traffic areas or areas exposed to high
drafts and winds. Locate the fireplace
away from furniture and draperies.

Page 6
Fireplace and Framing Dimensions (inches)
Figure 2
15 3/4" 26 1/4"
31 7/8"
30 3/16"
32 3/16"
31 7/8"
32 3/16"
3 1/4"
13 1/2"
7 1/2"
GAS LINE
WARNING: Installation and repairs should be performed by a qualified service person.
The appliance should be inspected before use and at least annually by a professional ser-
vice 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.
NOTE: Do not obstruct air openings around appliance. Maintain adequate clearances around
air openings.

Page 7
FIREPLACECLEARANCES
Thefireplacemaybeplaceddirectlyonacombustible
floor,againstacombustiblewallatmarkedclearances,or
onaraisedwoodenplatform.
Ifthefireplaceistobeinstalledonaraisedwooden
platform,theplatformmustbeacontinuouslevelsurface.
Thefireplacemustbesecuredinplacesoitcannotshift
positions. Thenailingflangesonthesidesofthefirebox
makesecuringittotheframingeasy. Theyweredesigned
toallowtheinstallationof1/2"wallboardorplywoodflush
withthefaceofthefireplace.
Onlytheheader(seeFigure2)mayrestonthestandoffs
ontopofthefirebox.
Whenthefireboxisinstalledovercarpeting,vinyltile,or
anycombustiblematerialotherthanwoodflooring,it
mustbeinstalledonametalorwoodpanelextendingits
fullwidthanddepth. Alternatives,thecarpeting,vinyl
tile,etc.mayberemovedbeneaththefireplacebefore
installing.
COMBUSTIBLEMATERIALS MUSTNOTBEINSTALLED
OVERORTOUCHANY BLACKPAINTEDSURFACE. DO
NOT BLOCKHEATCIRCULATINGAIROUTLETS. DOING
SOMAYRESULTINPOTENTIALFIREHAZARDS.
1. SidewallClearances: Clearancesfromthesideofthe
fireplaceopeningtoanyadjacentcombustiblewall
shouldnotbelessthan 7"right side, 7” left side.
2. Ceiling Clearances: The ceiling height should
not be less than 42" from the top of the fireplace
opening.
INSTALLING THE FIREBOX
Thislistofspecificinstructionswillhelpyoumakecertainthatevery
installationoperationisperformedcorrectly. Completetheinstallation
stepsinthesequenceshown.
LOCALBUILDINGCODESSHOULDBE CONSULTEDINALLCASESAS
TOTHEPARTICULARREQUIREMENTSCONCERNINGTHE
INSTALLATIONOFFACTORYBUILT FIREPLACES. Selectthelocation
forthefireplacebytakingintoconsiderationthefactorspreviously
outlined in the “Choosing the Location.” See page 6.
FramingtheFirebox
Thewidthoftheframedopeningmustbe317/8". Theheightofthe
framedopeningmustbe323/16". Theentirefireplacecan beelevated
abovethefloortoachievearaisedheartheffect. Thiscanbedoneby
addingasmallplatformtoachievethedesiredheight.
NOTE: Thewiringforthelowerblowermustbeinstalledduringthe
framingstage. Thenailingflangesonbothsidesweredesignedtoallow
theinstallationof1/2"wallboardorplywoodflushwiththefaceofthe
fireplace.
Whentheframingisinside,theoutsidewallwillbeinsulated. Ifthe
framingorchaseisoutside,thininsulationshouldbeusedinthe
framingontheback,sides,andtop.Thebottomshouldbeinsulated
withahardinsulatingboard. Thiswillpreventcoldfromgoingintothe
chasethroughthefireplacetothelivingspace.
InstalltheFirebox
Installthefireboxintotheframed openingbyplacingitdirectlyinfront
oftheopeningandslidingitintotheproperposition.
LeveltheFirebox
Checkthelevelofthefireboxonthetopedgeofthefireplaceface.
Shimifnecessary.
SecuretheFirebox
Securethefireplacetotheframing. Thenailingflangesonthefirebox
willmakesecuringthefireboxtotheframequickandeasy. Use
appropriatesizenailsorscrewstosecurethefirebox.
25"1/2"
13 1/2"
*7" 31 7/8"
*Note: Minimum 1/2"clearance
SIDE VIEW
13 1/2"
32 3/16"
FRONT VIEW
FRAMING
HEADER
31 7/8"
32 3/16"
LEFT FRONT RIGHT

Page 8
FINISHING YOUR FIREPLACE
There is a wide variety of finishing material
available for your fireplace from formal wall
treatments with marble and mantels, to rustic
wood paneling, stone or brick. Non-
combustible materials used in this installation
such as slate, tile, marble, etc. must be at least
1/2" thick.
IT IS IMPORTANT THAT THE BLACK FACE OF
THE FIREPLACE NOT BE COVERED WITH ANY
TYPE OF COMBUSTIBLE MATERIAL.
Non-combustible facing materials such as
marble, brick, or ceramic tile may overlap the
black face of the fireplace up to the opening on
either side of the fireplace. Seal all joints
between the black fireplace face and the wall
covering with a heat-resistant material such as
rock, wool, insulation or mortar. Be sure to use
high temperature adhesive or mortar when
anchoring brick, stone, or tile to the face of the
fireplace. Check to see whether man-made
brick and stone are made of non combustible
materials before using them on the face of the
fireplace. Some of these products contain
combustible materials. Combustible wall
coverings such as paneling or wallboard may
not overlap the black face of the fireplace. The
space between the wall covering and the
fireplace should be sealed with a heat resistant
material such as rock, wool, insulation or
mortar.
NOTE: An “L” shaped steel lintel must be
installed across the top of the firebox opening
where facing materials such as brick or stone is
used on the face of the firebox. It acts as a
support/firestop. It should be attached to the
face of the fireplace with screws and sealed to
the fireplace with a heat-resistant sealer.
CLEARANCES
To ensure a safe installation, the following
must be carefully observed.
1. Sidewall Clearances: Clearances from
the side of the fireplace opening to any
adjacent combustible wall should not be less
than 7"right side, 7” left side. See Figure 4.
2. Ceiling Clearances: The ceiling height
should not be less than 42" from the top of the
fireplace opening.
3. Mantel Clearances: We have provided 3
different situations to position your mantel.
See Figure 5.
4.Floor Clearances: No clearance is
required if the appliance is installed per
these instructions.
5. Front Clearances: 24” to combustible
Materials.
FIGURE 4
2"NON-COMBUSTIBLE
MATERIAL
7"MIN.
CLEARANCE TO
SIDE WALL
SIDE WALL
42"MIN.
CLEARANCE
TO CEILING
RIGHT SIDE
LEFT SIDE
FRONT 24” MIN. TO COMBUSTIBLE MATERIALS

Page 9
MANTEL PROFILES FOR ZERO CLEARANCE CABINET
MUST BE FOLLOWED
Figure 5
2"
3"
3 1/4"
3 1/4"
2"
2"
42"
COMBUSTIBLE
MATERIAL
NAILING FLANGE
STAND OFF FP-327-ZC
LOUVERS
HOOD
TOP TRIM(METAL)
CEILING
2"
2"
2"
42"
COMBUSTIBLE
MATERIAL
NAILING FLANGE
STAND OFF FP-327-ZC
LOUVERS
HOOD
TOP TRIM(METAL)
CEILING
2" 6"
2"
2"
42" MIN.
COMBUSTIBLE
MATERIAL
NAILING FLANGE
STAND OFF FP-327-ZC
LOUVERS
HOOD
TOP TRIM(METAL)
CEILING
MANTEL 3/4"FLATSURFACE
MANTEL 3/4"FLATSURFACE
2 1/2"FLATSURFACE
3"
12"
10"
3/4"
TO 12"
5" MIN.
2-1/2"
3/4"
10”
7”
13”
8”
PICTURE. 1
PICTURE. 2
PICTURE. 3

Page 10
INSTALLATION OF MODEL
FP - 327- ZC
WITH OPTIONALWOODEN MANTEL
(1) When choosing the right location for your heater and mantel keep the following in mind:
NOTE: Due to high temperatures, this heater should be located out of traffic areas and away
from furniture and draperies.
NOTE: Kit No. (PAKDM327) Optional Wooden Mantel for FP-327-ZC.
CAUTION: THE INSTALLATION MUST CONFORM WITH LOCAL CODES OR, IN THE
ABSENCE OF LOCAL CODES, WITH THE NATIONAL FUEL GAS CODES, ANSI Z223.1/
NFPA 54.
NOTE: See page 18 for “Gas Connection” and page 19 for “Gas Pressure Check”.
WARNING: YOUNG CHILDREN SHOULD BE CAREFULLY SUPERVISED WHEN THEY
ARE IN THE SAME ROOM WITH THE APPLIANCE.
DO NOT PLACE CLOTHING OR OTHER FLAMMABLE MATERIAL ON OR NEAR THE
APPLIANCE
(2) Screen(s) can not be removed or altered (Position screen(s) in the closed position before leaving
heater unattended).
(3) Follow instructions for assembly of (Optional) Wooden Mantel. See instructions supplied with
mantel.
(4) After mantel has been assembled, slide the heater from the rear into the opening of the mantel.
NOTE: Place a cloth or blanket over the front portions of the mantel as not to scar the wood.
(5) Center the heater in the opening of the mantel. See Figure 6.
(6) Fasten mantel to hearth by using 1/2" wood screws.
(7) Insert the nine (9) wood screws provided with mantel through slots on nailing flange and secure in
place. See Figure 6.
(8) Position mantel and fireplace into desired location.
NOTE: Hook gas supply line into heater. Check for leaks using soap and water, not an open flame.
NOTE: At this point, you may want to anchor the mantel to the wall or floor.
(9) Now you are ready to position the log set.

Page 11
(10) To light the heater, see “Lighting Instructions” pages 21 through 28. Make sure you have the
right gas valve for Natural or LP gas.
TOP MANTEL
SIDE MANTEL
1/2"WOOD
SCREWS
(9)
MANTEL BASE
REAR OF HEATER
FIGURE 6

Page 12
SECTION VI
AFTER MARKET MOBILE HOME
INSTALLATION
NOTE: See “Producing Adequate Air For Combustion And Ventilation” page 14.
.THIS APPLIANCE MAY BE INSTALLED IN AN AFTERMARKET*, PERMANENTLY
LOCATED, MANUFACTURED (MOBILE) HOME, WHERE NOT PROHIBITED BY
LOCAL CODES.
*After Market: Completion of sale, not for the purpose of resale from the manufacturer.
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.
NOTE: For mobile home installation follow “Installation This Instruction Manual”.
NOTE: See “Producing Adequate Air For Combustion And Ventilation” page 14

Page 13
PRODUCING ADEQUATE AIR FOR
COMBUSTION AND VENTILATION
This section is for residential or manufactured (mobile) installation
This heater shall not be installed in unusually tight construction unless provisions are adequate
for combustion and ventilation air.
NOTE: This heater shall not be installed in a room or space unless the required volume of in-
door combustion air is provided by the method in the National Fuel Gas Code, ANSIZ223.1/
NFPA 54, the International Fuel Gas Code, or applicable codes.
The National Fuel Gas Code, ANSI Z223.1/NFPA 54 defines unusually tight construction or
unconfined space as a space whose volume is less than 50 cubic feet per 1,000 BTU per hour
(4.8m3 per kw) of the aggregate input rating of all appliances installed in that space and an
unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 BTU per
hour (4.8m3 per kw) of the aggregate input rating of all appliances installed in that space.
Rooms communicating directly with the space in which the appliances are installed, through
openings not furnished with doors, are considered a part of the unconfined space.
WARNING: IF THE AREA IN WHICH THE HEATER MAY BE OPERATED DOES
NOT MEET THE REQUIRED VOLUME FOR INDOOR COMBUSTION AIR, COM-
BUSTION 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, OR APPLICABLE CODES.
WARNING: IF THE AREA IN WHICH THE HEATER MAY BE OPERATED IS
SMALLER THAN THAT DEFINED AS AN UNCONFINED SPACE OR IF THE
BUILDING IS OF UNUSUALLY TIGHT CONSTRUCTION, PROVIDE ADEQUATE
AIR FOR COMBUSTION AND VENTILATION BY ONE OF THE METHODS
DESCRIBED IN THE NATIONAL FUEL GAS CODE, ANSI Z223.1/NFPA 54 AIR FOR
COMBUSTION AND VENTILATION, OR APPLICABLE LOCAL CODES.
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 1 perm (6 x 10-11 kg per pa-sec-m2) or less with openings gasketed
or sealed;
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 plumbing, electrical, and gas lines, and at other openings.
NOTE: SOME AREAS IN THE UNITED STATES HAVE HIGHER REQUIREMENTS
FOR CUBIC FEET PER 1000 BTU/ HOUR INPUT. (EX. CINCINNATI, OHIO CODES
REQUIRE 70 CUBIC FEET). CHECK YOUR LOCAL CODE BEFORE
INSTALLATION.
DETERMINING FRESH-AIR FLOW FOR
HEATER LOCATION
DETERMINE IF YOU HAVE UNUSUALLY TIGHT CONSTRUCTION OR UNCONFINED SPACE
Use this worksheet to determine if you have confined or unconfined space.
SPACE: Includes the room in which you will install heater plus adjoining rooms with
doorless passageways or ventilation grills between the rooms.

Page 14
1. Determine the volume of the space (length x width x height).
Length x Width x Height =_________cu.ft.(volume of space)
EXAMPLE: 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. Divide the space volume by 50 cubic feet to determine the maximum BTU/Hr the
space can support.
_________(volume of space)/50 cu. ft. =maximum BTU/Hr the space can support)
EXAMPLE: 2560 cu. ft. (volume of space /50 cu. Ft .= 51.2 or
51200 (maximum BTU/Hr the space can support)
3. Add the BTU/Hr of all fuel burning appliances in the space.
Vent-free heater _______________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
Example: Gas water heater 40000 BTU/Hr
Vent-free heater + 18000 BTU/Hr
Total = 58000 BTU/Hr
*Does not include direct-vent gas appliances. Direct-vent draws combustion air
from the outdoors and vents to the outdoors.
4. Compare the maximum BTU/Hr the space can support with the actual amount of BTU/
Hr used.
____________BTU/Hr (maximum the space can support)
____________BTU/Hr (actual amount of BTU/Hr used)
Example: 51200 BTU/Hr (maximum the space can support)
58000 BTU/Hr (actual amount of BTU/Hr used)
The space in the above example is unusually tight construction because the actual BTU/Hr
used is more than the maximum BTU/Hr the space can support. 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 an unconfined space, remove door to adjoining room or add
ventilation grills between rooms. See “Ventilation Air For Combustion And Ventilation From
Inside Building”, page 16.
B. Vent room directly to the outdoors. See “Ventilation Air For Combustion And
Ventilation From Outdoors”, page 17.
C. Install a lower BTU/Hr heater, if lower BTU/Hr size makes room unconfined.
If the actual BTU/Hr used is less than the maximum BTU/Hr the space can support, the
space is an unconfined space. You will need no additional fresh air ventilation.
WARNING: YOU MUST PROVIDE ADDITIONAL VENTILATION AIR IN A UNUSU-
ALLY TIGHT CONSTRUCTION.

Page 15
VENTILATION AIR FOR COMBUSTION AND
VENTILATION FROM INSIDE BUILDING
This fresh air would come from an adjoining unconfined space. When venting to an adjoining space,
you must provide two permanent openings: one within 12" of the ceiling and one within 12" of the
floor on the wall connecting the two spaces (see Options 1 and 2, Figure 7). You can also remove door
into adjoining room (see Option 3, Figure 7).
WARNING
REWORK WORKSHEET, ADDING THE SPACE OF THE ADJOINING UNCONFINED
SPACE. THE COMBINED SPACES MUST HAVE ADEQUATE AMOUNT OF AIR TO
SUPPLY ALL APPLIANCES IN BOTH SPACES.
NOTE: Each opening shall have a minimum free area of 1 square inch per 1000 BTU’s per hour of
the total input ratings of all gas utilization equipment in the confined space, but not less than 100
square inches.
Figure 7 Ventilation Air From Inside Building
NOTE: This heater shall not be installed in a room or space unless the required volume of indoor
combustion air is provided by the method in the National Fuel Gas Code, ANSIZ223.1/NFPA 54, the
International Fuel Gas Code, or applicable codes.

Page 16
FIGURE 8
VENTILATION AIR FOR COMBUSTION AND
VENTILATION FROM OUTDOORS
Provide extra fresh air by using ventilation grills or ducts. You must provide two permanent
openings: one within 12" of the ceiling and one within 12" of the floor. Connect these items
directly to the outdoors. These spaces include attics and crawl spaces. Follow the National
Fuel Gas Code NFPA 54/ANSI Z223.1, Section 5.3, “Air For Combustion and Ventilation”
for required size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet air into attic if attic has a thermostat-
controlled power vent. Heated air entering the attic will activate the power unit.
WARNING
THIS APPLIANCE MUST HAVE ADEQUATE AMOUNT OF AIR FOR PROPER
OPERATION. IF NOT, POOR FUEL COMBUSTION COULD RESULT. READ THE
FOLLOWING INSTRUCTIONS TO ENSURE PROPER AMOUNT OF AIR FOR THIS
AND OTHER FUEL-BURNING APPLIANCES IN YOUR HOME.
VENTILATED ATTIC
OUTLET AIR
OUTLET AIR
INLET AIR
TO ATTIC
TO
CRAWL
SPACE
INLET AIR VENTILATED
CRAWL SPACE

Page 17
WARNING: ANY CHANGE TO THIS HEATER OR ITS CONTROLS CAN BE
DANGEROUS
GAS CONNECTION
Check gas type. Use only the type of gas indicated on the valve rating plate. If the gas type listed on
the plate is not your type of gas supply, DO NOT INSTALL. Contact your dealer for proper model.
Always use an external regulator for all LP heaters to reduce the supply tank pressure to a maximum
of 13" W.C. This is in addition to the regulator furnished with the heater.
WARNING: CONNECTION DIRECTLY TO AN UNREGULATED LP TANK CAN
CAUSE AN EXPLOSION.
The normal gas connection is 3/8" N.P.T. made at the left side (facing the front of the appliance) of
the appliance. If a right side connection is desired, the connecting pipe may be led under the rear of
the burner base to terminate at the right side for connection to the inlet of the valve.
NOTE: The connecting pipe must be internally tinned copper tubing for use with natural gas. Test
for leaks using a solution of soap and water after completing the connection. DO NOT USE OPEN
FLAME.
NOTE: If the factory-built fireplace has no gas access hole(s) provided, an access hole of 1.5 inch (37.5mm)
diameter or less may be drilled through the lower sides or bottom of the fire box in a proper workmanlike
manner. This access hole must be plugged with non-combustible insulation after the gas supply line has been
installed.
WARNING: Installation and repairs should be performed by a qualified service person. The appli-
ance should be inspected before use and at least annually by a professional service person. More fre-
quent cleaning may be required due to excessive lint from carpeting, bedding material, etc. It is im-
perative that control compartments, burners and circulating air passageways of the appliance be kept
clean.

Page 18
GAS PRESSURE CHECK
Check the inlet pressure to the burner to ensure that it is as shown in the table below.
NOTE: The pressure check point is located on the right side of the valve facing burner, for ITT, and
the left side for SIT.
The appliance and its appliance main gas valve must be disconnected from the gas supply piping
system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5kPa).
The appliance must be isolated from the gas supply piping system by closing its equipment shut-off
valve during any pressure testing of the gas supply piping system at test pressures equal to or less than
1/2 psi (3.5 kPa).
MODEL FP-327-ZC FP-327-ZC
Gas Natural ITT Maxitrol Propane ITT Maxitrol
Maximum Heat Input 27,000 27,000 27,0000 27,000
Gas Inlet Pressure:
Maximum 10.5 ins. W.C. 13 ins. W.C.
Minimum * 5 ins. W.C. *11 ins. W.C.
Manifold Pressure 3.5 ins. W.C. 9 ins. W.C.
NOTE: On initial installation it may be necessary to bleed out air in the gas lines. Do this by
holding the control knob and turning the knob to the “PILOT” position for about 30
seconds.
To check the Regulator pressure, remove the pressure tag plug at the left side of the
Regulator facing the heater. The pressure should be checked with the heater burning
and the control set on high. After measuring the pressure, replace the pressure tap
plug, ensuring that there are no leaks.
* For the purpose of minimum input adjustment.
WARNING
This appliance is equipped for (natural or propane) gas.
Field conversion is not permitted.
PLACEMENT OF LOGS
CERAMIC LOGS
(1) REAR LOG (2) FRONT LOG (3) LEFT TOP LOG
WARNING: POSITIONING OF LOGS IS VERY CRITICAL (FIGURE 9).
LOG PLACEMENT FOR CR8T LOG SET.
1. Place Rear log #1 on rear log support. The log has an alignment notch on Left and
right corners.
2. Place Front log #2 with alignment notches over front andirons.
3. Left Top log has locating hole in one end, place hole over pin on Left side of Rear log
(#1) . Make sure Front of Left Top log (#3) is resting on Left side of Left Andiron.
SEE DIAGRAM ON PAGE 20.