An on / off thermostat only switches a boiler on and off. When the thermostat makes a heat request at the central heating boiler, it immediately emits 100% gas. As soon as the desired room temperature has been reached, the boiler switches itself off again. On / off thermostats have the advantage that on / off thermostats on both on / off central heating boilers and modulating boilers fit.
Undamaged|Starter pack|Suitable for floor heating|Adjustable temperature zones
347,-
316,-
Delivered tomorrow
Lightly damaged|Starter pack|None suitable for floor heating|Adjustable temperature zones
160,-
81,-
Delivered tomorrow
More Second Chance varieties available
Undamaged|Expansion|Suitable for floor heating|None adjustable temperature zones
127,-
89,-
Delivered tomorrow