Therma Grow™ Greenhouse Heaters
www.lbwhite.com
Owner’s Manual • Therma Grow™
4
Specifications
HW120 STD HW120 PLUS HW220 STD HW220 PLUS
Maximum Input (btu/h / kW)
120,000 / 35.2
220,000 / 64.5
Minimum input (btu/h / kW)
N/A
65,000 / 19.0
N/A
120,000 / 35.2
Indoor Mounting Air Ex-
change Requirements
(1)
Exhaust Fan
(cfm / m3 / hour)
300 / 510
550 / 934.5
Shuttered Air Inlet
(sq. in. / sq. cm.)
120 / 774
Outdoor Mounting Air
Exchange Requirements
Shuttered Exhaust
Outlet (sq. in. / sq.
cm.)
120 / 774
550 / 934
Inlet Gas Supply Pressure
Acceptable at the Inlet of
the Heater for Purpose
of Input Adjustment (In.
W.C./kPa)
LP Gas
Max.
13.5 / 3.36
Min.
11.0 / 2.74
Nat. Gas
Max.
11.0 / 2.74
Min.
7.0 / 1.74
Burner Manifold
Pressure (in. W.C. / kPa)
LP Gas
Max.
5.0 / 1.24
Min.
N/A
1.4 / 0.35
N/A
1.4 / 0.35
Nat. Gas
Max.
3.1 / 0.77
Min.
N/A
0.8 / 0.20
N/A
0.8 / 0.20
Fuel Consumption Per
Hour
LP Gas
Max.
5.56 lbs / 2.52 kg
10.19 lbs. / 4.62 kg
Min.
N/A
3.01 lbs. /
1.36 kg
N/A
5.56 lbs. /
2.52 kg
Nat. Gas
Max.
120 cu. ft. / 3.42 m3
220 cu. ft. / 6.28 m3
Min.
N/A
65 cu. ft. /
2.53 m3
N/A
120 cu. ft. /
3.42 m3
Motor Characteristics
H.P. / Watts /RPM
Ball Bearing
1/3 / 246 / 1,100
1/2 / 372.8 / 1,100
Electrical Supply
(Volts/Hz/Phase)
115 / 60 / 1
YES
230 / 60 / 1
N/A
YES
Amp Draw
(Includes Ignitor)
Starting
115 volt motor
11.8
17.1
230 volt motor
N/A
6.7
Continuous
Operation
115 volt motor
4.5
8.4
230 volt motor
N/A
2.6
Dimensions (in. / cm) L x W x H
30.75 x 21.28.25 / 78.1 x 53.3 x 71.75
35 x 25 x 30 / 89 x 63.5 x 76.2
Minimum Safe
Distances from Heater
to Nearest Combustible
Materials
Top
1 ft. (0.3 m)
Sides
1 ft. (0.3 m)
Back
1 ft. (0.3 m)
Blower Outlet
6 ft. (1.83 m)
Gas Supply
Propane (L.P.) Gas Supply - 6 / 1.83 Natural Gas Supply - N/A
(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.
Содержание Therma Grow HW120
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