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DESA INTERNATIONAL
UNVENTED NATURAL GAS LOG HEATER
SPECIFICATIONS
18" Variable
Btu (Variable)
16,000/26,000
Type Gas
Natural Gas Only
Ignition
Piezo
Manifold Pressure
3.4" W.C.
Inlet Gas Pressure (in. of water)
Maximum
10.5"
Minimum*
5"
Shipping Weight
32 lbs.
* For purpose of input adjustment
WIRING DIAGRAM
24" Variable
30" Variable
20,000/33,000
21,500/36,000
Natural Gas Only
Natural Gas Only
Piezo
Piezo
3.4" W.C.
3.4" W.C.
10.5"
10.5"
5"
5"
34 lbs.
36 lbs.
24
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting. If
so, contact DESA International's Technical
Service Department at 1-800-DESA LOG
(1-800-337-2564).
You can also visit DESA International's
Technical
www.desatech.com.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
When Gas Quality Is Bad
• pilot will not stay lit
• burners will produce flames and soot
• heater will backfire when lit
You may feel your gas pressure is too low or
gas quality is bad. If so, contact your local
natural gas supplier.
Thermopile
Services
web
site
104416
at
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