Here's what you should know about how heat pumps work, what kinds of heat pumps are out there, and how to decide if a heat ...

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.

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.