Residential electric furnaces require which type of power supply?

Question

Quizplus · Accepted Answer

Residential electric furnaces typically require a 220-V single-phase power supply. This type of power supply is common in residential homes and is sufficient to power the furnace without requiring excessive amounts of electricity. Options A, C, and D are not typically used for residential electric furnaces. A 115-V power supply would not provide enough power to heat a home adequately, while 220-V three-phase and 440-V three-phase power supplies are more commonly used for commercial and industrial applications.

Residential Electric Furnaces Require Which Type of Power Supply