They are particularly relevant for underfloor heating where there is a high, low response thermal mass (the floor slab) to control. The best place for the thermostat is the room where you spend the most time, in many cases the living room or kitchen. Wired or Wireless Wired Width 133 mm Voltage 24 V to 230 V Type Programmable Room Thermostat Timer Cycle 7 Days Height 88.

I have three of these - two controlling underfloor heating manifold valves and one controlling my radiator circuit. The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products.

If you do use the PI function, leave it to self learn for a week or so before you change the temperatures and confuse it.

Update: My thermostat has been a little temperamental recently, sometimes turning on and off even when the room temperature is at or above the set temperature. The CM700 range of programmable room thermostats are designed for social housing provider and specifier market needs by providing automatic time and temperature control of domestic heating premises. Wiser however has a memory built into the TRV head, so it knows at what point to start turning off, so can reheat a room faster. As per the image, my current thermostat has a brown wire connected to A (Live according to the sticker?

Each day can be set with its own programme, or the programme can be copied to other days- so every day of the week can have the same programme- or you can have a different programme at weekends etc.

However with a gas modulating boiler this is counter productive, as every time the boiler is switched off by the thermostat any heat in boiler is lost out of the flue, and on switching on again it does so at full output, so the boiler never gets time to modulate and the mark/space switching does seem to work, but causes the boiler to work inefficiently.You maybe able to use the "grey wire that is folded behind" for this connection, but you need to find out first what it is connected to at the other end. There is a wired thermostat in the front entrance room that controls all the hallways and the downstairs rooms and another wired thermostat in one of the bedrooms which controls all the upstairs rooms and bathrooms. The Honeywell CM707 Programmable Room Stat 7 day is an easy-to-use programmable thermostat that allows you to set different temperatures for different times of the day and days of the week. There is a problem where zone valves are used, Wiser thermostats will only allow use of the Opentherm module when single channel, so with new builds often there are zone valves, so they will not work with the OpenTherm module, EPH seems to be the odd one out, it does not link to TRV heads, but it can work as master/slave, so even with zone valves it can still control boiler with OpenTherm. Finance is provided by PayPal Credit (a trading name of PayPal UK Ltd, Whittaker House, Whittaker Avenue, Richmond-Upon-Thames, Surrey, United Kingdom, TW9 1EH).