Why is a traditional room thermostat not the best choice for controlling an infrared heater?
a. It must be mounted high on a wall.
b. The bimetal element is too slow to react to radiant heat.
c. It is incompatible with the heater's control circuit voltage.
d. Radiant heat may affect thermostat operation.
[Ques. 2] Excessive draft through the flue vent may cause _____.
a. higher combustion efficiency
b. soot formation
c. lower combustion efficiency
d. furnace short cycling
[Ques. 3] A high temperature rise across a furnace heat exchanger may cause _____.
a. condensation in the vent
b. higher flue gas temperatures
c. carbon monoxide formation
d. lower flue gas temperatures
[Ques. 4] A requirement for an area in which a non-vented high-intensity infrared heater is to be installed is _____.
a. the area must be well ventilated
b. all ceilings must be at least 20' high
c. no combustible material can be within 15' of the heater
d. no vehicles can be parked under the heater
[Ques. 5] Net stack temperature identifies _____.
a. actual flue gas temperature
b. heat lost to the ambient
c. burner flame temperature
d. heat created by combustion
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