However, despite their name, radiators actually transfer most of their heat to a room by convection, not radiation. Normally radiant heaters must be at least red hot before they are effective.

Radiative heat transfer is one of the most critical energy transfer mechanisms in nature. However, traditional blackbody radiation, due to its inherent characteristics, such as its non-directional ...

Trapped air prevents heat loss by conduction and convection. Radiation is the transfer of heat energy from a region of high temperature to a region of low temperature by infrared radiation.