Radiant heating is a complete different way of heating than air heating. Especially suitable for poor insulated buildings, half open buildings like harbour docks or even in the outside. We all know radiant heaters for terrasses.
The limitation of these types of heaters is their advantage at the same time: the heat can be directed fairly precise as long as a somebody or something is in reach of the heating appliance. Therefore, we also see radiant heaters often applied in production areas or parts of a warehouse were people work only in a part of the building: an air heater maintains a basic temperature of f.i. 5°C and radiant heaters provide extra heat where