An Infrared heater is a body with a higher temperature which transfers energy to a body with a lower temperature through electromagnetic radiation. This type of heat doesn’t use water or air to transfer heat. Unlike convection or fan forced convection which heats the air which in turn heats the room, Infrared heats the objects like chairs, walls, floors, people, etc, then the objects warm up the air which warms up the room.
This form of heat is great for spot heating like a French Fry warmer. It only heats what’s in front of the heating element, no wasted heat rise up to the ceiling or second floor.
From Wikipedia, the free encyclopedia
An infrared heater is a body with a higher temperature which transfers energy to a body with a lower temperature through electromagnetic radiation. Depending on the temperature of the emitting body, the wavelength of the infrared radiation ranges from 780 nm to 1 mm. The relationship between temperature and wavelength is expressed by the Wien’s displacement law. No contact or medium between the two bodies is needed for the energy transfer.
One classification of infrared heaters is by the wavelength bands of infrared emission.
- Short wave or near infrared for the range from 780 nm to 1400 nm, these emitters are also named bright because still some visible light is emitted;
- Medium infrared for the range between 1400 nm and 3000 nm;
- Far infrared or dark emitters for everything above 3000 nm.