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UNVENTED (VENT-FREE)
NATURAL GAS LOG HEATER
Variable Manually-Controlled Models Also Design-Certified As
Vented Decorative Appliances
OWNER’S OPERATION AND INSTALLATION MANUAL
Save this manual for future reference
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 sup-
plier, call the fire department.
— Installation and service must be per-
formed by a qualified installer, service
agency, or the gas supplier.
WARNING: Improper installation, ad-
justment, alteration, service, or mainte-
nance can cause injury or property
damage. Refer to this manual for cor-
rect installation and operational proce-
dures. For assistance or additional in-
formation 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 and ventilation air must be
provided. Refer to
Air for Combustion and Ventilation
section on page 4 of this manual.
®
P
I
L
O
T
O
F
F
O
N
LO
REMOTE
OFF
ON
HI
CFS18NR, VS18NR,
VS24NR VS30NR
18", 24", and 30"
Remote-Ready Models
DESA INTERNATIONAL
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
WARNING: This appliance is for in-
stallation only in a solid-fuel burning
masonry or UL127 factory-built fire-
place, or in an approved ventless fire-
box. It is design-certified for these
installations in accordance with ANS
Z21.11.2. Exception: Do not install
this appliance in a factory-built fire-
place that includes instructions stat-
ing it has not been tested or should
not be used with unvented gas logs.