Boost your home's heating efficiency and save money with the SpeedComfort Radiator Fan. This innovative device can increase your heating system's efficiency by up to 22%, reducing the time it takes to warm your home and providing a more comfortable environment. Installation is a breeze – simply attach it to your radiator using the built-in magnets or included legs, and it automatically turns on and off with the temperature sensor. Designed to fit most radiator and convector types, including standard, narrow, single-plate, and convectors. Enjoy faster heating, lower energy bills, and quiet operation. Features a 10-year warranty and is extendable with the SpeedComfort booster extension set. Turns on at 33°C and off at 25°C. The original inventor since 2015. Key Features: * Save up to 22% on energy costs * Heat your home twice as fast * Easy, tool-free installation * Whisper-quiet operation * Suitable for radiators 40-70 cm wide (extendable) * Automatic on/off functionality * 10-year warranty Product Summary: SpeedComfort radiator fan booster, white, duo pack, increases heating efficiency up to 22%, faster heating, energy saving, easy install, magnetic, quiet, for standard, narrow, single plate radiators and convectors, 40-70cm extendable, auto on/off, 10-year warranty.