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103873
TECHNICAL
SERVICE
You may have further questions about installation, operation, or troubleshooting.
If so, contact DESA International’s Technical Service Department at 1-800-323-5190.
CGN20T/CGN20TL CGN30T/CGN30TL
20,000 Btu/Hr Models 30,000 Btu/Hr Models
Btu (Variable) 10,000/20,000 15,000/30,000
Type Gas Natural Only Natural Only
Ignition Piezo Piezo
Pressure Regulator Setting 3" W.C. 3" W.C.
Inlet Gas Pressure (in. of water)
Maximum 10.5" 10.5"
Minimum 4" 4"
Dimensions, Inches (H x W x D)
Heater 23.5 x 18.5 x 8.0 23.5 x 25.9 x 8.0
Carton 25.8 x 21.3 x 10.1 25.8 x 28.7 x 10.1
Weight (pounds)
Heater 22 30
Shipping 27 35
SPECIFICATIONS
SERVICE
HINTS
When gas pressure is too low
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
When gas quality is bad
• pilot will not stay lit
• burner 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
PUBLICATIONS
You can purchase a service manual from the address listed on the back page of this
manual. Send a check for $5.00 payable to DESA International.