Trench Fan Convectors
Floor fan convectors are available with or without integrated fan as well as with both heating and cooling function. In most buildings you can do without a fan if the idea is to prevent cold draft only, and there is a supplement in the form of any ordinary radiator or underfloor heating. Many people still choose a convector with adjustable fan, because you can get up to four times more heat output even though the very quiet fan is only a few watts.
A further plus is that infloor fan convectors do not build up the floor as much as, for example, underfloor heating. This means that they can be installed in most places in both private homes and in public environments.