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24632-0-0508 Page 5
GAS SPECIFICATIONS
MODEL FUEL MAXIMUM INPUT MINIMUM INPUT
HW080
Propane/LP -- Natural gas
8,000 Btu/hr 5,000 Btu/hr
HW181 18,000 Btu/hr
9,000 Btu/hr NAT
9,500 Btu/hr LP
MANIFOLD PRESSURE
Natural gas: 4" water column pressure
Propane/LP gas: 10.0" water column pressure
Gas Inlet 3/8"
SUPPLY
MINIMUM PRESSURE MAXIMUM PRESSURE
Natural Gas 5" W.C.P. 10.5" W.C.P.
LP Gas 11" W.C.P. 13" W.C.P.
Note: Appliance input ratings are based on sea level operation and need not be changed for operation up to 2,000 feet.
SPECIFICATIONS
MODELS HWDV080(B)DV HWDV181(B)DV
COMBUSTION
ATMOSPHERIC BURNER
STANDARD HEATING SPACE
85 - 250 Sq. Ft. 169 - 529 Sq. Ft.
EXTERNAL DIMENSIONS INCHES
HEIGHT 21 11/16" 25 3/16"
WIDTH 18 5/16" 22 5/16"
DEPTH 8 7/8" 9 3/8"
NET WEIGHT LBS.
33.5 45.5
MAX. GAS CONSUMPTION
8,000 Btu/hr. 18,000 Btu/hr.
SAFETY DEVICES
Safety valve (thermocouple)
Warning: This direct vent wall furnace is equipped for Natural or Propane gas. Field conversion is not permitted.
HIGH ALTITUDE SPECIFICATIONS
Model
0 - 2,000 feet (0 - 610 m) 2,000 - 4,500 feet (610 - 1 370 m)
Main Burner Orifice/Gas Pressure Main Burner Orifice/Gas Pressure
Natural Gas LP Gas Natural Gas LP Gas
HW080 #55 (4") #66 (10") #1.27 mm (4") #67 (10")
HW181 #49 (4") #56 (10") #50 (4") #57 (10")
For altitudes/elevations above 2,000 feet (610 m), input ratings should be reduced at the rate of 4% for each 1,000 feet (305 m) above
sea level. Canadian High Altitudes for locations having an elevation above mean sea level between 2,000 feet (609.9 m) and 4,500 feet
(1,370 m), use orifices as indicated in the following table: