L.B. White Therma Grow HW120 Owner's Manual And Instructions page 10

10
Therma Grow™ Greenhouse Heaters
15. Eventually, like all electrical/mechanical devices,
the thermostat can fail. Thermostat failure may
result in either an underheating or overheating
condition which may damage or kill plants. Plants
should be protected by a separate back-up con-
trol system that limits high and low temperatures
and also activates appropriate alarms.
16. Take time to understand how to operate and
maintain the heater by using this Owner's
Manual. Make sure you know how to shut off
the gas supply to the building and also to the
individual heater. Contact your fuel gas supplier if
you have any questions.
17. Any defects found in performing any of the
service or maintenance procedures must be
eliminated and defective parts replaced imme-
diately. The heater must be retested by properly
qualified service personnel before placing the
heater back into use.
18. Do not exceed input rating stamped on the
dataplate of the heater. Do not exceed the burner
manifold pressure stated on the dataplate. Do
not use an orifice size different than specified for
the specific input rating of this heater, fuel type
configuration and altitude.
Owner's Manual • Therma Grow™