central heating thermostat location?

[LFB1975]

I've bought a brand new three story townhouse and I am wondering if the heating thermostat has been put in the correct place.

The builder has put it in the first floor sitting room internal wall behind a door. I have two radiators on the outside wall without TRV's. The rest of the house has radiators with TRV's on them.

The problem I am getting is that the sitting room gets warmed up by us being in there with the telly on etc and the heating turns off before the rest of the rooms in the house have warmed up properly and most of the time it will stay off.

I've had to turn off one of the radiators in the room to slow down how quickly the room warms up.

I've had the builders round to discuss it but they wern't much help.

Has anyone got any ideas. From my experiance with thermostats I thought they had to be located in a place that would give a good representative tempature.

 

[Armo74]

It's possible that the radiators have not been sized correctly or the system wants balancing. Do any of the other rooms reach temperature? What have you got the TRV's set at?

 

[LFB1975]

The radiators are the correct size. Most of the trv's are set to full as the heating isn't on long enough sometimes to warm the rest of the rooms up.

 

[DickieP]

Room thermostats are generally located in the Hall, this being a central location that'll give you rough overall house temp. And with a modern 'Townhouse' type property I'd say it's very important that it's sited in the Hall or Landing.

 

[Charnwood]

The radiators are the correct size.

Not waning to sound supercilious, but says who?

 

[bolshy]

Turn up your roomstat. Or move it. There's nothing wrong with installing a roomstat in the main living area, it complies with BR.
And my money is on undersized rads too - builders don't waste money on decent spec. For a condensing boiler, oversized rads work best.
Are all your rads double convectors. I bet there's a few singles in there.

 

[LFB1975]

The radiator size is ok because when the heating comes on they get very hot and the rooms warm up.

But after the sitting room has warmed up and we are in it, the thermostat thinks that the rest of the house is warm so doesn't turn the heating back on.

 

[Armo74]

It's doing its job then, hence the need for correct system design part of that being correctly sized radiators. Why not try an online heatloss calculator and see if the radiators are actually the right size? (Radcalcs.com)

 

[bolshy]

The radiator size is ok because when the heating comes on they get very hot and the rooms warm up.

That means the radiators are working. It doesn't mean they are sized correctly. Are they double panel radiators?