HR 25 Power Programmable radiator thermostat: 3 piece of it I bought and mounted on three new radiators and programmed. 12 months worked the regulation properly. Then came the end! All three radiator thermostats jammed after 12, 13 and 14 months. Two radiators remained cold. A radiator was very hot. The cause of the failure is a wear of the plastic gears in the unit. Also new batteries not help. If you solve the deadlock, then the device will work three days again, but then again follows the end. All appliances wear out and go after 12 months broken. My advice is: do not buy!
