By using convection, cool air is drawn into the bottom slots and warmed by the heating coils and fins. Then warm air exits from the top slots of the unit. These units are usually placed beneath windows to counter heat loss through the glass.
A remote line voltage thermostat may be used to control the baseboard heater or it may come with an integrated thermostat control. It is important to keep the unit clear of drapes and unobstructed by furniture for best performance.
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