TECHNICAL
SERVICE
SPECIFICATIONS
SERVICE
PUBLICATIONS
SERVICE
HINTS
30
You may have further questions about installation, operation, or troubleshooting.
If so, contact DESA International's Technical Service Department at 1-800-323-
5190.
BTU (Variable)
Type Gas
Ignition
Pressure Regulator Setting
Inlet Gas Pressure (in. of water)
Maximum
Minimum
Dimensions, Inches (H x W x D)
Heater
Carton
Weight (pounds)
Heater
Shipping
BTU (Variable)
Type Gas
Ignition
Pressure Regulator Setting
Inlet Gas Pressure (in. of water)
Maximum
Minimum
Dimensions, Inches (H x W x D)
Heater
Carton
Weight (pounds)
Heater
Shipping
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.
When gas pressure is too low
• pilot will not stay lit
• burner(s) will have delayed ignition
• heater will not produce specified heat
When gas quality is bad
• pilot will not stay lit
• burner(s) 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.
VN1800IT
6,600-18,000
Natural Only
Piezo
6" W.C.
10.5"
7"
23.5 x 18.5 x 8
25.8 x 21.3 x 10.1
24
29
VN1800C
6,600/12,000/18,000
Natural Only
Piezo
6" W.C.
10.5"
7"
23.5 x 18.5 x 8
25.8 x 21.3 x 10.1
22
27
VN2550IT
7,000-25,500
Natural Only
Piezo
6" W.C.
10.5"
7"
23.5 x 25.9 x 8
25.8 x 28.7 x 10.1
32
38
VN3000C
6,600/18,000/30,000
Natural Only
Piezo
6" W.C.
10.5"
7"
23.5 x 25.9 x 8
25.8 x 28.7 x 10.1
30
36
100750