Desa CGN20TB Electric Heater User Manual


 
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OWNER’S MANUAL
INSTALLATION
WARNING: A qualified ser-
vice person must install heater.
Follow all local codes.
CHECK GAS TYPE
Use only natural gas. If your gas supply is
not natural gas, do not install heater. Call
dealer where you bought heater for proper
type heater.
INSTALLATION ITEMS
Before installing heater, make sure you have
the items listed below.
piping (check local codes)
sealant (resistant to propane/LP gas)
equipment shutoff valve *
ground joint union
test gauge connection *
sediment trap
tee joint
pipe wrench
test gauge connection*
* A CSA/AGA design-certified equipment
shutoff valve with 1/8" NPT tap is an ac-
ceptable alternative to test gauge connec-
tion. Purchase the optional CSA/AGA de-
sign-certified equipment shutoff valve from
your dealer. See Accessories, page 18.
LOCATING HEATER
This heater is designed to be mounted on a
wall.
WARNING: Maintain the mini-
mum clearances shown in Figure
4. If you can, provide greater clear-
ances from floor, ceiling, and join-
ing wall.
You can locate heater on floor, away from a
wall. An optional floor mounting stand is
needed. Purchase the floor mounting stand
from your dealer. See Accessories, page 18.
WARNING: Never install the
heater
in a bedroom or a bathroom
in a recreational vehicle
where curtains, furniture,
clothing, or other flammable
objects are less than 36 inches
from the front, top, or sides of
the heater
as a fireplace insert
in high traffic areas
in windy or drafty areas
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as to-
bacco smoke, aromatic candles,
cleaning fluids, oil or kerosene
lamps, etc.) in the air exist, may
discolor walls.
IMPORTANT:
Vent-free heaters add mois-
ture to the air. Although this is beneficial,
installing heater in rooms without enough
ventilation air may cause mildew to form from
too much moisture. See Fresh Air for Com-
bustion and Ventilation, pages 4 through 6.
NOTICE: This heater is intended
for use as supplemental heat. Use
this heater along with your pri-
mary heating system. Do not in-
stall this heater as your primary
heat source. If you have a central
heating system, you may run
system’s circulating blower while
using heater. This will help circu-
late the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
Minimum
From
Sides Of
Heater
36"
3"
FLOOR
CEILING
Minimum
Minimu
m
Of Carp
e
Combus
t
6"
Left
Side
Right
Side
For convenience and efficiency, install heater
where there is easy access for operation,
inspection, and service
in coldest part of room
An optional fan kit is available from your
dealer. See Accessories, page 18. If plan-
ning to use fan, locate heater near an electri-
cal outlet.
Figure 4 - Mounting Clearances As Viewed
From Front of Heater
CAUTION: If you install the
heater in a home garage
heater pilot and burner must
be at least 18 inches above
floor
locate heater where moving ve-
hicle will not hit it
Continued
Minimum
to Top
Surface
of Carpeting or
Other Combustible
Material