BLUE FLAME
VENT-FREE PROPANE/LP GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
Save this manual for future reference.
FB-20BB
FBS-20BB
FB-30BB
FBS-30BB
FGH-30LPB
20,000 and 30,000
Btu/Hr Models
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.
* Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) from the room in which it
is installed. Provisions for ad-
equate combustion and venti-
lation air must be provided.
Refer to
Air For Combustion
and Ventilation section on page
4 of this manual.
WARNING: Improper installa-
tion, adjustment, alteration, ser-
vice, or maintenance can cause
injury or property damage. Re-
fer to this manual for correct
installation and operational pro-
cedures. For assistance or ad-
ditional information consult a
qualified installer, service
agency, or the gas supplier.
This appliance may be installed in an aftermarket*, permanently located, manufac-
tured (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.
