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Your electric furnace is not going to be able to do you much good without your contactor. You will need this in order to keep the temperature in your home nice and comfortable during the winter season. Sequencer. A sequencer used on an electric furnace is something that will turn your heating elements either on or off. It can do this to more than one should this be necessary. A sequencer is needed because it helps to keep the current spike that is electric down. This is something that can happen whenever your electrical device becomes energized in any way. It does not take much for your electrical device to become energized.
Electric Furnace Diagram An electric furnace is similar to a conventional gas forced-air furnace except that it produces heat with electric heating elements instead of gas burners. Circuit breakers that control the heating elements may be either inside or outside the cabinet. An electric-resistance furnace works like a big hair dryer. As with a gas forced-air furnace, it has a blower that draws air into the cabinet through a cold-air return and then pushes the air through the heat exchanger. There, electric heating elements heat the air, and the blower pushes the warmed air back into rooms through a system of duct work. One advantage of electric heating over gas and other combustion fuels is that electric heating doesnât give off carbon monoxide.