What Does a Heater Do?

An electric heater is an electrical device that converts an electric current into heat. The heating element inside every electric heater is an electrical resistor, and works on the principle of Joule heating: an electric current passing through a resistor will convert that electrical energy into heat energy.

What is a heater used for?

Room heaters are used to heat a small space and are normally portable or fitted to a wall. Most room heaters use gas or electricity. Room heaters are convenient appliances that provide focused and localised heat which is particularly suitable in a room for people that are elderly, ill or with limited mobility.

What does a heater do to the air?

With a forced-air system, a furnace warms air, an air conditioner cools air, a heat pump either warms or cools air, and then a blower forces the heated or cooled air through the system and out into the living spaces.