Using brackets, SpeedComforts can be used for radiators with a distance between the panels of 38 mm to 72 mm. They are always placed at the bottom of the radiator.
It is best to place the SpeedComforts at the front, even to the side of the radiator. This looks better and means the SpeedComforts also push air along the radiator at the rear. As a result, less heat disappears into the (outer) wall.
Place multiple units in series, connected to one adapter, under a longer radiator. Look at where the wall bracket and the connection clip between the two panels.
Multiple units placed in series can be operated by one thermostat switch.
Old panel radiators sometimes have no convection fins between the panels and are not very suitable.
Older cast-iron radiators are also not suitable for SpeedComforts.