The Tiemme thermal drive can be used on the floor heating systems for the control of the thermostatic elements placed on distribution manifolds, or on the traditional heating systems (radiators) to control the thermostatic valves ( by replacing of the adapter see page 4 of the linked brochure).
The valves operate by using a piston movement that is triggered by a synthetic wax placed into a capsule as temperature changes. The valves default position is closed and are of the on-off switch type.