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For use with a listed gas-fired 
unvented decorative room heater 
not to exceed 40,000 BTU/hr. Do 
Not Build a Wood Fire.

READ AND SAVE THESE INSTRUCTIONS

WARNINGS

If the information in this manual is not followed exactly, 
a fi re or explosion may result causing property damage, 
personal injury or loss of life.

–  Do not store or use gasoline or other fl ammable 

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 

fi re department.

–  Installation and service must be performed by 

a qualified installer, service agency or the gas 
supplier.

MODELS:

BUF400

BUF500 

UNVENTED VENT-
FREE FIREBOXES 

INSTALLATION AND OPERATING 

INSTRUCTIONS

Carefully review the instructions 
supplied with the decorative type 
unvented room heater for the mini-
mum fi replace size requirement.

DO NOT INSTALL AN APPLIANCE 
IN THIS FIREBOX UNLESS THIS 
FIREBOX MEETS THE MINIMUM 
DIMENSIONS REQUIRED FOR 
THE INSTALLATION.

WARNINGS

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 fl ammable 

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 

fi re department.

–  Installation and service must be performed by 

a qualifi ed installer, service agency or the gas 
supplier.

WARNINGS

Summary of Contents for Unvented Vent-Free Fireboxes BUF400

Page 1: ...ODELS BUF400 BUF500 UNVENTED VENT FREE FIREBOXES INSTALLATION AND OPERATING INSTRUCTIONS Carefully review the instructions supplied with the decorative type unvented room heater for the mini mum fireplace size requirement DO NOT INSTALL AN APPLIANCE IN THIS FIREBOX UNLESS THIS FIREBOX MEETS THE MINIMUM DIMENSIONS REQUIRED FOR THE INSTALLATION WARNINGS If the information in this manual is not follo...

Page 2: ...m Hearth Dimensions 7 Location of Fireplace 7 Clearances and Height Requirements 8 Fireplace Framing 10 Gas Line Installation 12 Canopy and Radiant Face Plates Installation 13 Other Optional Equipment 14 Forced Air Kit 14 Brass or Chrome Louvers 14 Brass or Chrome Trim 14 Firebrick 14 Optional Wide Canopy 14 Illustrated Parts Breakdown 15 Warranty Back Cover ...

Page 3: ...MPORTANT Read these instructions carefully before installing or trying to operate a vent free gas heater in this firebox IMPORTANT SAFETY INFORMATION 1 Due to high temperatures the appliance should be located out of traffic and away from furniture and draperies 2 Children and adults should be alerted to the hazard of high surface temperature and should stay away to avoid burns or clothing ignition...

Page 4: ...e reduced 4 percent for each 1 000 feet above sea level Refer to the National Fuel Gas Code 21 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 psig 3 5 kPa 22 The appliance must be isolated from the gas supply piping system by closing its equipment shutoff valve durin...

Page 5: ...he following 1 Vent Free Gas Firebox 3 Five 5 sheet metal screws for canopy 2 Canopy 4 Installation and Operating Instructions WHAT YOU WILL NEED FOR INSTALLATION TOOLS BUILDING SUPPLIES Phillips screwdriver Square Framing materials Hammer Piping complying with local codes Wall finishing materials Saw and or sabersaw Tee joint Caulking material noncombustible Level Pipe wrench Fireplace surround m...

Page 6: ...ferent sequence 1 Position firebox prior to framing or into prepared framing 2 Field wire main power supply to models with fan kit Electrical connections should only be performed by an experi enced licensed certified tradesman Electrical outlet is needed with fan kit 3 Plumb gas line Gas connections should only be performed by an experienced licensed certified tradesman 4 Install vent free gas log...

Page 7: ...fans return air registers for forced air furnaces air conditioners windows or doors Installation must provide adequate ventilation and combus tion air DO NOT INSTALL THIS FIREBOX IN A BEDROOM OR BATHROOM Location should be out of high traffic or windy or drafty areas DONOTINSTALLWHERECURTAINS FURNITURE CLOTHING OR OTHER FLAMMABLE OBJECTS ARE LESS THAN 42 FROM FRONT OF HEATER Never obstruct the fro...

Page 8: ...to follow these requirements may create a fire hazard 1 Sidewall clearances The clearance from the inside of the appliance to any combustible wall should not be less than 9 See Figure 4 2 Ceiling clearance The ceiling must be at least 42 from the top of the firebox opening See Figure 4 3 Back wall clearnace The appliance may be placed against a combustible back wall Figure 4 Clearance and Height R...

Page 9: ...ooring mate rial such as carpeting or asphalt tile which is closer than 14 to the base of the firebox See Figure 6 Or The inner chamber firebox floor may be installed nearer to the floor if a minimum of 14 of noncombustible material such as slate or marble is installed between the base of the firebox and the combustible flooring See Figure 7 Figure 5 Mantel Clearances Figure 6 Minimum Clearance ab...

Page 10: ... See Figure 1 on Page 6 for firebox dimensions The framing headers may rest on the top of the firebox standoffs The firebox may be installed directly on a combustible floor or raised on a platform of an appropriate height When the firebox is installed directly on carpeting tile or other combustible material other than wood flooring the firebox shall be installed on a metal or wood panel extending ...

Page 11: ...the firebox Shim if necessary 4 Anchor firebox to the side framing members using 8d nails or other suitable fasteners See Figure 12 5 The canopy must be installed for safe operation of the heater See page 13 for canopy installation details Figure 12 Location of Nailing Flanges Nail Sides Through Nailing Flanges The fireplace must be installed giving full consideration to the clearance and height r...

Page 12: ... from passing through trap to the heater controls and burners Failure to do so could prevent the heater from operating reliably Consult applicable codes An external regulator must be used on all propane L P G heaters in addition to the regulator fitted to the heater to reduce the supply tank pressure to 13 w c maximum Any copper tubing used to supply propane L P G from the tank must be internally ...

Page 13: ...3 2 Align the canopy with the holes in the top of the frame 3 Secure canopy to front of frame with screws provided See Figure 13 The firebox canopy must not be modified or replaced with a canopy that may be provided with the unvented decorative room heater WARNING Close fireplace screen panel before operating a decorative type unvented room heater WARNING Figure 13 Installing Canopy Canopy Screws ...

Page 14: ...must be installed prior to the installation of the vent free heater The electrical connec tions must be made before the firebox is framed and enclosed in the finished walls Electrical connections should only be performed by a qualified licensed electrician main power must be off when connecting to main electrical power supply or performing service The blower when installed must be electrically gro...

Page 15: ...IST ITEM DESCRIPTION QTY BUF400 BUF500 1 Canopy 1 26D4568 26D4706 2 Screen Panel 2 26D0131 26D0187 3 Screen Rod 2 26D0132 26D0133 4 Rear Refractory 1 61D0102 61D0107 5 Side Refractory 2 61D0101 61D0101 6 Bottom Refractory 1 61D0100 61D0106 ...

Page 16: ... in accordance with the installation instructions The Limited Lifetime Warranty will also be void if the appliance is not operated and maintained according to the operating instructions supplied with the appliance and does not extend to 1 firebox burner assembly damage by accident neglect misuse abuse alteration negligence of others including the installation thereof by unqualified installers 2 th...

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