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107434
OWNER’S MANUAL
For more information, visit www.desatech.com
CLEANING AND
MAINTENANCE
WARNING: Turn off heater
and let cool before cleaning.
CAUTION: You must keep con-
trol areas, burner, and circulating
air passageways of heater clean.
Inspect these areas of heater be-
fore each use. Have heater in-
spected yearly by a qualified ser-
vice person. Heater may need more
frequent cleaning due to excessive
lint from carpeting, bedding mate-
rial, pet hair, etc.
CABINET
Air Passageways
• Use a vacuum cleaner or pressurized air
to clean.
Exterior
• Use a soft cloth dampened with a mild
soap and water mixture. Wipe the cabi-
net to remove dust.
LOGS
• If you remove logs for cleaning, refer to
Installing Logs, page 10, to properly re-
place logs.
• Replace log(s) if broken or chipped
(dime-sized or larger).
MAIN BURNER
Periodically inspect all burner flame holes
with the heater running. All slotted burner
flame holes should be open with yellow
flame present. All round burner flame holes
should be open with a small blue flame
present. Some burner flame holes may be-
come blocked by debris or rust, with no flame
present. If so, turn off heater and let cool.
Either remove blockage or replace burner.
Blocked burner flame holes will create soot.
Review your video included with your heater
for additional cleaning instructions.
CLEANING BURNER
INJECTOR HOLDER AND
PILOT AIR INLET HOLE
The primary air inlet holes allow the proper
amount of air to mix with the gas. This pro-
vides a clean burning flame. Keep these holes
clear of dust, dirt,lint, and pet hair. Clean these
air inlet holes prior to each heating season.
Blocked air holes will create soot. We recom-
mend that you clean the unit every three
months during operation and have heater in-
spected yearly by a qualified service person.
We also recommend that you keep the burner
tube and pilot assembly clean and free of dust
and dirt. To clean these parts we recommend
using compressed air no greater than 30 PSI.
Your local computer store, hardware store, or
home center may carry compressed air in a
can. You can use a vacuum cleaner in the
blow position. If using compressed air in a
can, please follow the directions on the can.
If you don't follow directions on the can, you
could damage the pilot assembly.
1. Shut off the unit, including the pilot.
Allow the unit to cool for at least thirty
minutes.
2. Inspect burner, pilot, and primary air
inlet holes on injector holder for dust
and dirt (see Figure 27).
3. Blow air through the ports/slots and
holes in the burner.
4. Check the injector holder located at the
end of the burner tube again. Remove any
large particles of dust, dirt, lint, or pet hair
with a soft cloth or vacuum cleaner nozzle.
5. Blow air into the primary air holes on
the injector holder.
6. In case any large clumps of dust have
now been pushed into the burner repeat
steps 3 and 4.
Clean the pilot assembly also. A yellow tip on
the pilot flame indicates dust and dirt in the pilot
assembly. There is a small pilot air inlet hole
about two inches from where the pilot flame
comes out of the pilot assembly (see Figure 28).
With the unit off, lightly blow air through the air
inlet hole. You may blow through a drinking
straw if compressed air is not available.
Figure 27 - Injector Holder On Outlet
Burner Tube
Burner
Tube
Injector Holder
Primary Air
Inlet Holes
Figure 28 - Pilot Inlet Air Hole
Burner
Tube
Pilot
Assembly
Pilot Air
Inlet
Hole
Ports/Slots
BURNER FLAME PATTERN
Figure 25 shows a correct burner flame pat-
tern. Figure 26 shows an incorrect burner
flame pattern. If burner flame pattern is
incorrect,
• turn heater off (see To Turn Off Gas to
Appliance, page 14)
• see Troubleshooting, pages 16 through 18
Figure 25 - Correct Flame Pattern with
Control Knob Set to High Flame.
Figure 26 - Incorrect Flame Pattern with
Control Knob Set to High Flame
Approx. 3-6" Above
Top of Logs
More Than 8"
Above Top of Logs
INSPECTING
BURNERS
Continued