Underfloor heating is a method of heating a floor base itself, rather than using radiators or radiant heat sources. Underfloor heating results in an element of radiant heat but far more convective heat transfer as the air above the floor is gradually warmed. Unlike radiators, however, underfloor heating creates very little draughts as the air is heated over the entire floor area.
Underfloor heating can be divided into three main types. Wet systems, which use hot water pipes beneath the floor covering, electric underfloor heating that uses a resistance wire beneath the floor covering and warm air heating which ducts warm air beneath the floor. Warm air heating is the type of heating that was made famous by the Romans.