107884
For more information, visit www.desatech.com
For more information, visit www.desatech.com
24
SPECIFICATIONS
SPECIFICATIONS
REPLACEMENT PARTS
SERVICE HINTS
TECHNICAL SERVICE
SERVICE PUBLICATIONS
WMN20
GN30, GN30T
GWN20
GWN30T
GWN20T
Btu (Variable)
15,000/30,000
10,000/20,000
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
24
1
/
4
x 25
3
/
4
x 7
24
1
/
4
x 18
1
/
4
x 7
Carton
26
3
/
8
x 28
1
/
8
x 10
26
3
/
8
x 20
7
/
8
x 10
Weight (pounds)
Heater
28
20
Shipping
33
25
WMP20
GP30, GP30T
GWP20
GWP30T
GWP20T
Btu (Variable)
15,000/30,000
10,000/20,000
Type Gas
Propane/LP Only
Propane/LP Only
Ignition
Piezo
Piezo
Pressure Regulator Setting
8" W.C.
8" W.C.
Inlet Gas Pressure (in. of water)
Maximum
14"
14"
Minimum
11"
11"
Dimensions, Inches (H x W x D)
Heater (Includes knobs & grill)
24
1
/
4
x 25
3
/
4
x 7
24
1
/
4
x 18
1
/
4
x 7
Carton
26
3
/
8
x 28
1
/
8
x 10
26
3
/
8
x 20
7
/
8
x 10
Weight (pounds)
Heater
28
20
Shipping
33
25
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 Technical Service Depart-
ment at 1-866-672-6040.
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/LP or natural gas)
• purchase date
Usually, we will ask you to return the part to the
factory.
PARTS NOT UNDER WARRANTY
Contact authorized dealers of this product. If they
can’t supply original replacement part(s), either
contact your nearest Parts Central (see page 27) or
call DESA International at 1-866-672-6040 for
referral information.
When calling DESA International, have ready
• model number of your heater
• the replacement part number
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA International’s Technical
Service Department at 1-866-672-6040. When calling please have
your model and serial numbers of your heater ready.
You can also visit DESA International’s technical service web site
at
www.desatech.com.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If so, contact your local
natural or propane/LP 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.
