The IHD uses the electric gates (for chairlifts) and a heat sensor in a reference vehicle on the installation to control seat heating automatically, which helps save energy and make seat heating sustainable. A sensor detects the temperature on the surface of the seats and passes this information on to the system. The chairs and cabins are heated (or not) as they pass through the station, depending on the temperature of the seat surfaces. This system can save a lot of energy, especially in the spring and in very sunny ropeways, because the seats are already warmed by the sun’s radiation or the outside temperature, so they no longer need to be heated. In chairlifts, a direct connection is established between the electric gates and the heating system. This connection ensures that only chairs on which passengers are sitting are heated. The IHD system can also be integrated into existing seat heating systems with minimal effort.