Bergstrom Rechargeable Radiator Fan, Energy-Saving Heat Circulator in White; This rechargeable radiator fan is an energy-saving heat circulator designed to maximise the warmth from your radiators and reduce wasted heat. By redirecting heat that would normally rise up walls, out of windows or into ceilings, the fan pushes warmth back into the room for faster, more efficient heating and reduced energy use. Featuring both manual and auto settings, it activates automatically when your radiator reaches 33C and switches off when it cools, or you can control it manually to suit your needs. Lightweight and portable with a rechargeable battery, this radiator fan fits most standard single and double radiators and is ideal for home or office use. Its compact size and quiet turbo fans make it a practical way to stay warm and comfortable while helping to cut energy bills. Bergstrom Rechargeable Radiator Fan, Energy-Saving Heat Circulator in White color: White