An oil-filled electric baseboard heater works by heating the oil through the use of a coil. As the oil heats up, it emits warm air to the room it is placed in.
Oil-filled baseboard heaters are energy-efficient since it uses a slower cycle. Since the oil heats slowly, it heats the room gradually and requires the system to be turned on less often. As the oil cools down, it continues to warm the room as it does so. This type of heater also offers quiet operation and can be used in rooms of all different sizes. Installation should be done by a professional.