SPECIFICATIONS
Maximum Input (BTUH)
Minimum Input (BTUH)
Indoor Mounting Air
(1)
Exchange Requirements
Outdoor Mounting Air
(1)
Exchange Requirements
Inlet Gas Supply
Pressure Acceptable at
the Inlet of the Heater
for Purpose of Input
Adjustment (In. W.C.)
Burner Manifold
Pressure (In. W.C.)
Fuel Consumption Per
Hour
Motor Characteristics
Electrical Supply
(Volts/Hz/Phase)
Amp Draw
Dimensions (Inches)
L x W x H
Minimum Safe
Distances From
Nearest
Combustible
Materials
Net Weight (lbs.)
Shipping Weight (lbs.)
(1) Air inlets and exhaust outlets must be electromechanically operated and electrically interlocked with the heater to
prevent heater operation if air inlet and exhaust outlet do not open when heating is required.
EXHAUST FAN
SHUTTERED AIR INLET
SHUTTERED
EXHAUST OUTLET
MAX.
MIN.
MAX.
MIN.
MAX.
MIN.
STARTING
CONTINUOUS
OPERATION
TOP
SIDES
BACK
BLOWER
OUTLET
GAS
SUPPLY
Heater Specifications
M M o o d d e e l l
HD120
Propane
Gas
120,000
65,000
300 CFM
120 sq. in.
120 sq. in.
13.5
11.0
5.2
1.3
5.56 lbs.
3.01 lbs.
Ball Bearing
1/3 H.P.
1,100 RPM
115/60/1
11.8
4.5
30 3/4 x 18 1/4 x 28 1/4
1 ft.
1 ft.
1 ft.
6 ft. (1.83 m)
Propane Gas Supply — 6 ft. (1.83 m)
Natural Gas Supply — N/A
116
126
Natural
Gas
11.0
7.0
3.1
0.8
120 cu. ft.
65 cu. ft.
4