Therma Grow™ Greenhouse Heaters
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Owner’s Manual • Therma Grow™
12
FIG. 4A
Blower Outlet View
FIG. 4B
Underside View
FIG. 4C
Side View
FIG. 4D
Alternate Air Inlet Locations
Exhaust Fan
The exhaust fan must be located at an upper area of
the end wall opposite from the heater, preferably in
an area higher than the heater’s discharge. See Fig.
5. The fan does not need to be directly in line to the
heater. Ensure the exhaust fan is kept free of blockage.
FIG. 5
END WALL
1-1/2 FT. MAX
2 FT. MIN
INTERIOR EXTERIOR
AIR DISCHARGE
DUCT ATTACHED TO
AIR INLET OF HEATER,
AND CUT TO PROPER
LENGTH. (NO KINKS
OR SAGGING)
MOTORIZED AIR INLET
SHOWN WITHOUT DUCT
ATTACHED FOR CLARITY
DUCT WITH COLLAR
CENTERED TO AIR INLET
OF HEATER
18 IN. MIN.
18 IN.
MIN.
CUT DUCT TO PROPER LENGTH, NO
KINDS OR SAGGING
10 FT. MAX FROM AIR INLET AT HEATER TO
MOTORIZED AIR INLET SHUTTER REGARD-
LESS OF INLET LOCATION DUCT MUST BE
INSTALLED.
18 IN. MIN.