Temperature rise is: a. A predetermined safe operating range the temperature of the house air should rise when traveling through the furnace b The difference between the return air and supply air Both "a" and "b"

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Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.