Turning down TRV in same room as thermostat.

PopeSock

My house has an odd arrangement where by the thermostat is in the kitchen, a room I don't need heating as much as the lounge.

I've heard that it's best not to use the TRV in the room where the thermostat is, but then again I'd be heating a room at full blast that I don't really need.

Can anyone advise me what issues I might have cranking it down to 3, or even to 1?

I gather that the heating is auto turned off when the thermostat room hits the thermostat temperature. But then again, if the heating's on, won't it only fire up the boiler when a room with a TRV'd radiator needs heat?

Or is there a point to having the whole house - or at least the two largest rooms - fully heated?

Andy_WSM

The TRV will regulate the radiator it is attached to, the thermostat will regulate the whole system.

If you turn the TRV down, or off, in the Kitchen where your thermostat is then the thermostat will never reach the desired temperature to turn the system off.

Ideally the Thermostat would be in the living room and there would not be a TRV on the living room radiator. Given your set up though then it might be best to ignore the thermostat, turning it up high and use only the TRVs to adjust the temperature of each room.

Cardew

This has been discussed many times and, unless you have a zoned CH system, the setting and positioning on a thermostat is always a compromise.

Having a wireless remote thermostat helps, but still requires moving from room to room if more that one room is in use.

System

I agree with Cardew. Provided all the rooms have radiators with TRVs, then the position of the thermostat is arguably irrelevant. In such situations, the thermostat is little more than a system ON/OFF switch. By setting the thermostat to, say, 25C, then each of the TRVs will do their own thing.

It is though bearing in mind that if TRVs are fitted to all radiators then some form of pump bypass is needed - either a radiator in the bathroom left fully open or an automatic bypass valve in the system as most modern boilers have a pump over-run to protect the boiler from over heating.