31
101308
TECHNICAL
SERVICE
You may have further questions about installation, operation, or troubleshooting.
If so, contact DESA International’s Technical Service Department at
1-800-DESA LOG (1-800-337-2564).
18" Thermostat- 24" Thermostat- 30" Thermostat-
Controlled Controlled Controlled
Btu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000
Type Gas Natural Gas Only Natural Gas Only Natural Gas Only
Ignition Piezo Piezo Piezo
Manifold Pressure 3.4" W.C. 3.4" W.C. 3.4" W.C.
Inlet Gas
Pressure (in. of water)
Maximum 10.5" 10.5" 10.5"
Minimum* 5" 5" 5"
* For purpose of input adjustment
Shipping Weight 36 lbs. 38 lbs. 40 lbs.
SPECIFICATIONS
18" Manually- 24" Manually- 30" Manually-
Controlled Controlled Controlled
Btu (Variable) 8,000/14,000/ 10,000/17,000/ 11,000/18,000/
26,000 33,000 36,000
Type Gas Natural Gas Only Natural Gas Only Natural Gas Only
Ignition Piezo Piezo Piezo
Manifold Pressure 3.4" W.C. 3.4" W.C. 3.4" W.C.
Inlet Gas
Pressure (in. of water)
Maximum 10.5" 10.5" 10.5"
Minimum* 5" 5" 5"
* For purpose of input adjustment
Shipping Weight 36 lbs. 38 lbs. 40 lbs.
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.
SERVICE
HINTS