www.desatech.com
118997-01B
5
OPERATION
WARNING: Review and un-
derstand the warnings in the
Safety Information section, page
2. They are needed to safely
operate this heater.
TO START HEATER
1. Follow all ventilation and safety informa-
tion.
2. Locate heater to provide maximum circu-
lation of the heated air. Follow all location
requirements noted in
Safety Information
,
page 2.
3. Fill fuel tank with kerosene or #1 fuel oil.
4. Attach fuel cap.
5. Set thermostat dial to desired tempera-
ture.
Note:
Thermostat setting must be
higher than surrounding air temperature.
6. Plug power cord of heater into three-
prong, grounded extension cord. Exten-
sion cord must be at least 6 feet long.
WARNING: Use only a three-
prong, grounded extension
cord. Use cord with proper wire
size to assure 120 volt operation.
See Extension Cord Wire Size
Requirements below.
Extension Cord Wire Size Requirements
6 to 100 feet long, use 14 AWG rated cord
101 to 200 feet long, use 12 AWG rated cord
201 to 300 feet long, use 10 AWG rated cord
301 to 400 feet long, use 8 AWG rated cord
401 to 500 feet long, use 6 AWG rated cord
7. Plug extension cord into standard 120
volt/60 hertz, three-hole, grounded outlet.
8. The motor will start when extension cord is
plugged into outlet. The heater should ignite
at once. If heater does not ignite, restart
heater. To restart heater, wait 60 seconds,
then push in flame-out control reset button.
Flame-out control reset button is at rear of
heater near power cord (see Figure 3).
Note:
A cold heater may affect the thermostat
setting. This thermostat is a general-heating
control. It is not intended for precise tem-
perature control. Adjust thermostat until heater
cycles at the desired setting.
Note:
If starting heater for first time, you may
need to prime the pump. If equipped, slightly
Figure 3 - Flame-Out Control Reset
Button
Flame-Out
Control
Reset Button
TO STOP HEATER
CAUTION: Never unplug
heater while heater is running.
Heater must go through purge
cycle. The purge cycle cools the
combustion chamber. Damage
to heater can occur if combus-
tion chamber is not cooled. Do
not restart heater until purge
cycle is complete.
1. Turn thermostat dial to lowest temperature
setting. This will cause heater flame to go
out. The motor will continue to run during
the purge cycle. This allows the fan to cool
the combustion chamber. When the purge
cycle is finished, the motor will stop. Do not
unplug heater until purge cycle is finished.
2. Unplug extension cord from outlet.
3. To
temporarily
stop heater, set thermostat
at a temperature lower than air around
heater. Heater will cycle back on if air
temperature around heater matches
thermostat setting.
TO RESTART HEATER
CAUTION: Do not restart
heater until purge cycle is fin-
ished. The purge cycle cools the
combustion chamber.
1. Wait until purge cycle is finished after
stopping heater.
2. Repeat steps under
To Start Heater
.
open bleeder valve of pump to allow air to
escape. Quickly close valve once fuel is seen.
Wipe up any excess fuel. If equipped with
canister fuel filter, remove the canister bottom
and fill with fuel. Reassemble filter. Wipe up
any excess fuel. You may also have to do this
after taking heater out of storage.
