Electric Furnace and Components

Front

An electric furnace uses forced ___________ to distribute air warmed by electric heating elements.

Back

Convection

Front

Electrical requirements can be found on the furnace wiring diagram or ________________.

Back

installation manual

Front

Feeder wires must be enclosed in rigid metal or flexible ___________.

Back

Conduit

Front

Electric heating elements have built in __________ to electric flow.

Back

resistance

Front

The amount of resistance on an electric heating element are determined by its __________ and diameter

Back

length

Front

Electric heating elements have ceramic insulators to prevent a ___________.

Back

short circuit

Front

Electric heating elements are usually sized at ________ kw.

Back

5

Front

Heat output of electric heating elements is ______ Btu per watt.

Back

3.415

Front

A limit switch _____________ a heating element if the temperature exceeds the switch's rating.

Back

de-energizes

Front

a fusible link protects heating elements against a burn out if the __________ fails.

Back

limit