Vanguard Heating GVB50P User Manual
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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.
If so, contact DESA International’s Technical Service Department at 1-800-323-
5190.
35,000 BTU/Hr
50,000 BTU/Hr
Model
Model
BTU
35,000
50,000
Type Gas
Propane Only
Propane Only
Ignition
Piezo
Piezo
Pressure Regulator Setting
10.5" W.C.
10.5" W.C.
Inlet Gas Pressure
Maximum
14" W.C.
14" W.C.
Minimum
11" W.C.
11" W.C.
Dimensions, Inches
Heater (H x W x D)
25 x 27
1
/
4
x 16
28 x 32
1
/
2
x 16
Shipping Weight (pounds)
78
98
Flue Vent Size
4" dia.
4" dia.
Orifice Size
52 drill, ø .0635
46 drill, ø .081
SPECIFICATIONS
Note:
These heaters are certified for elevations of 0-4500 feet above sea level. For
elevations above 2000 feet, de-rate heater 4% for each 1000 feet above sea level.
When gas pressure is too low
• pilot will not stay lit
• burner will have delayed ignition
• heater will not produce specified heat
• propane gas supply may be low
• burner will have delayed ignition
• heater will not produce specified heat
• propane gas supply may be low
When gas quality is bad
• pilot will not stay lit
• burner will produce yellow flames and soot
• heater will backfire when lit
• burner will produce yellow 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 propane gas supplier.
local propane gas supplier.
SERVICE
HINTS