18
105568
BLUE FLAME NATURAL GAS HEATER
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting.
If so, contact DESA International’s Techni-
cal Service Department at 1-800-323-5190.
You can also visit DESA International’s
Technical Service web site at
www.desatech.com
.
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.
FA-20BB
FAS-20BB
FA-30BB
FAS-30BB
FGH-30NGB
Btu (Variable)
20,000/10,500
20,000/9,000
30,000/15,000
30,000/14,000
30,000/15,000
Type Gas
Natural Only
Natural Only
Natural Only
Natural Only
Natural Only
Ignition
Piezo
Piezo
Piezo
Piezo
Piezo
Pressure Regulator Setting
3" W.C.
3" W.C.
3" W.C.
3" W.C.
3" W.C.
Inlet Gas Pressure (in. of water)
Maximum
10.5"
10.5"
10.5"
10.5"
10.5"
Minimum
4"
4"
4"
4"
4"
Dimensions, Inches (H x W x D)
Heater (Includes knobs & grill)
23 x 18.75 x 7
23 x 18.75 x 7
23 x 26 x 7
23 x 26 x 7
23 x 26 x 7
Carton
26 x 21 x 9
26 x 21 x 9
26 x 28.5 x 9
26 x 28.5 x 9
26 x 28.5 x 9
Weight (pounds)
Heater
21
21.5
27.7
28.1
25
Shipping
24.5
25
33.7
34.1
31
SERVICE
PUBLICATIONS
You can purchase service manual from the
address listed on the back page of this
manual. Send a check for $5.00 payable to
DESA International.
REPLACEMENT
PARTS
Note:
Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Techni-
cal Service Department at 1-800-323-5190.
When calling DESA International, have
ready
• your name
• your address
• model and serial numbers of your heater
• how heater was malfunctioning
• type of gas used (propane or natural gas)
• purchase date
Usually, we will ask you to return the defec-
tive part to the factory.
PARTS NOT UNDER WAR-
RANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Parts
Department at 1-800-972-7879 for referral
information.
When calling DESA International, have
ready
• model number of your heater
• the replacement part number