Timers allow you to set ‘On’ and ‘Off’ time periods. Some models switch the central heating and domestic hot water on and off at the same time, while others allow the domestic hot water and heating to come on and go off at different times. Set the ‘On’ and ‘Off’ time periods to suit your own lifestyle.
The Honeywell ST9100C provides timing control for your central heating system, letting you set ON and OFF periods to suit your own lifestyle. The ST9100C does not directly control the temperature but works together with other temperature controls, such as room thermostats, to…£51.84Product Details