There, the rising warm air counteracts falling cool air from the cold window glass. Some heat is also radiated from the pipe, fins, and housing.īaseboard heaters are usually installed underneath windows. As air within the heater is warmed, it rises into the room, and cooler air is drawn into the bottom of the heater. The pipes, surrounded by aluminum fins to aid heat transfer, run the length of the baseboard heater's housing, or cabinet. Baseboard heaters contain electric heating elements encased in metal pipes. This limit controller may shut the furnace off if the blower fails or if a dirty filter is blocking the airflow.Īs with any furnace, it's important to clean or replace the furnace filters as recommended by the manufacturer, in order to keep the system operating at top efficiency.Įlectric baseboard heaters are zonal heaters controlled by thermostats located within each room.
A built-in thermostat called a limit controller prevents overheating. The furnace's heating elements activate in stages to avoid overloading the home's electrical system. If these ducts run through unheated areas, they lose some of their heat through air leakage as well as radiation and convection from the duct's surface.īlowers (large fans) in electric furnaces move air over a stack of three to seven electric resistance coils, called elements, each of which are typically rated at five kilowatts. Heated air is delivered throughout the home through supply ducts and returned to the furnace through return ducts.
Electric furnaces are more expensive to operate than other electric resistance systems because of their duct heat losses and the extra energy required to distribute the heated air throughout your home (which is common for any heating system that uses ducts for distribution).
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