During cold nights, visitors of a terrace want to be comfortably warm. In most cases an energy consuming terrace heater is used to keep the visitors warm outside. Unfortunatly most energy used by such a device is lost to the air. With Sit & Heat, the person is heated directly through the seat and back cushion. The temperature can be controlled by the user and Sit & Heat switches off when the user leaves. With these features the product saves over 90% of energy.