The T3 is a wired programmable room thermostat designed to control heating system efficiency and maintain comfort temperatures when you are at home or outside.
With its superior TPI control algorithm, your combi reaches the desired temperature by operating for a shorter time and consuming less energy. Temperature fluctuations are minimized and your boiler will not be fired unnecessarily, unlike 0.1 degree precision thermostats.
Our free installation service is available only in regions where Resideo Specialist Installers are available.