®
BLUE FLAME VENT-FREE NATURAL GAS HEATER
OWNER'S OPERATION AND INSTALLATION MANUAL
CGN20TB
CGN20TLB
CGN30TB
CGN30TLB
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Heater Sizes: 20,000 Btu/Hr Thermostat and
30,000 Btu/Hr Thermostat Model Heaters
WARNING: If the information in this manual is not I
followed exactly, a fire or explosion may result
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causing property damage, personal injury, or loss
Lof ife.
m Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
m 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.
WARNING: Improper instal-
lation, adjustment, alter-
ation, service, or mainte-
nance can cause injury or
property damage. Refer to
this manual for correct in-
stallation and operational
procedures. For assistance
or additional information
consult a qualified installer,
service agency, or the gas
supplier.
WARNING: This is an
unvented gas-fired heater.
It uses air (oxygen) from the
room in which it is installed.
Provisions for adequate
combustion must be pro-
vided. Refer to page 4 of this
manual.
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not prohibited
by state or local codes.
* Aftermarket: Completion of sale, notforpurposeofresale,fromthemanufacturer
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.
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