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BLUE-FLAME VENT-FREE
NATURAL GAS HEATER
OWNER’S OPERATION AND INSTALLATION MANUAL
Models: CGN20, CGN20L, and RN30D
®
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.
RN30D
CGN20
CGN20L
This appliance may be installed in an aftermarket* manufactured (mobile) home, where not
prohibited by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale, from the manufacturer. (I.E. Installation of this
product is permitted after the manufactured (mobile) home is sited)
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: Improper installation,
adjustment, alteration, service, or
maintenance can cause injury or
property damage. Refer to this
manual for correct installation
and operational procedures. For
assistance or additional informa-
tion consult a qualified installer,
service agency, or the gas sup-
plier.
WARNING: This is an unvented
gas-fired heater. It uses air (oxy-
gen) 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
sec-
tion on page 3 of this manual.
Save this manual for future reference.