www.desatech.com 113997-01B
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8.  This heater needs fresh, outside air ventilation 
to run properly. This heater has an Oxygen 
Depletion Sensing (ODS) safety shutoff sys-
tem. The ODS shuts down the heater if not 
enough fresh air is available. You must provide 
a minimum 10 square inches (6.5 square cm) 
of ventilation air for adequate combustion.
9.  If heater shuts off, do  not  relight  until  you 
provide fresh, outside air. If heater keeps 
shutting off, have it serviced.
10.  Keep all air openings in front and bottom of 
heater clear and free of debris. This will insure 
enough air for proper combustion.
11.  Do not use heater if any part has been under 
water. Immediately call a qualified service 
technician to inspect the room heater and to 
replace any part of the control system and any 
gas control which has been under water.
12.  When heater is placed on the ground, make sure 
the ground is level and keep any objects at least 
24" (60 cm) from the front of the heater. This 
heater is equipped with a tip over switch that 
will shut the heater off if the heater tips over. 
However, do not leave heater unattended or 
where children may cause the heater to tip over. 
Never operate the heater while sleeping!
13.  Gas pressure at heater is regulated and fixed 
at 11" W.C. When using a remote hose con-
nection do not regulate or reduce propane tank 
supply pressure to heater!
14.  Regulator in heater must always be in place 
during operation.
15.  Turn off and let cool before servicing. Only 
a qualified service person should service and 
repair heater.
16.  Turn off propane/LP supply when not in 
use.
17.  Check heater for damage before each use. Do 
not use a damaged heater.
18.  Do not alter heater. Keep heater in its original 
state.
19.  Do not use heater if altered.
20.  Before using the heater provide adequate 
ventilation. An area of 10 square inches (6.5 
square cm) of opening of a window or roof 
vent is needed for adequate combustion and 
ventilation air.
SAFETY INFORMATION
Continued
21.  This heater is safe for indoor use in small 
recreational enclosures, having means for pro-
viding combustion air and ventilation, such as 
enclosed porches, cabins, fishing huts, trailers, 
tent trailers, tents, truck caps and vans. It may 
be used for emergency indoor heating when 
connected to a disposable 1 lb. propane/LP 
cylinder and for indoor use in commercial 
enclosures, having means for providing com-
bustion air and ventilation, such as construction 
trailers or temporary work enclosures.
22.  When the heater is cold or at room tempera-
ture, it will take a few minutes for the burner 
tile to turn bright orange. This is normal and 
the heater is working properly. If burner tile 
is visibly flaming, turn heater off and call a 
qualified service technician.
23.  When the unit is lit, there should be about a 
quarter inch border around the tile that will 
not turn bright orange. This is normal.
24.  When operating the heater for the first time, 
the top area of the reflector may discolor. This 
is also normal and is no reason for concern.
25.  When operating the heater at altitudes over 
7,000 feet (2,100 m) above sea level, the unit 
may not burn as bright as in lower altitudes. 
This is normal. At higher altitudes, the heater 
may shut-off. If this happens, provide fresh 
air, wait 5 minutes and relight heater.
26.  Operating time will vary depending on the 
heater  setting and  the supply cylinder  size. 
3 to 6 hours on a 1 lb. (0.45 kg) cylinder. 48 
to 110 hours on a 20 lb. (9 kg) cylinder (based 
on HI and LO settings).
27.  Moving heater when lit or bumping heater 
while setting it down may cause tip over 
switch to shut off heater. If this happens relight 
heater.
LOCAL CODES
Install and use  heater  with  care.  Follow all  lo-
cal codes. In the absence of local codes, use the 
latest edition of National Fuel  Gas Code, ANSI 
Z223.1/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY  10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA  02269