Simple but effective device, the Radiator Booster uses a micro fan to suck the warm air into the central channel of the Radiator Booster and distributes it around the room. Simple to use technology, it maximises the efficiency of your central heating radiators by "sucking up" the lost heat from behind your radiator and gently circulating it around the room, the Radiator Booster mixes warm and cold spots, giving you a consistent, even room temperature for less heat. This efficiency means that on average the room thermostat can be reduced by 1 to 3 degrees.