TRV's on which rads in small house

[onabudget]

Hi would appreciate some advice as getting mixed views on best setup

House is a small one bed with three rads upstairs, one in the bathroom is a towel rad no trv just regular valve, one in bedroom with a TRV, one on the upstairs landing with a TRV.

Downstairs there is a small hall, kitchen and lounge, all compact with no doors, there is no heating in the kitchen but in the hall there is one rad and in the lounge there are two rads.

In the hall there is a room thermostat.

Given there are no doors between hall and lounge and there never were when the house was built which rads downstairs should have TRV's ?

I assumed the hall rad which is near the hall termostat should NOT have a TRV and just have regular valves but the two rads in the lounge should have TRV's. Some agree with this but another view is all three rads downstairs should have regular valves and no TRV's as they are all effectively in one open plan room.

Appreciate your views

Thanks

 

[dilalio]

Put TRVs everywhere but the hall and bathrooms.

Most houses I go to have doors to all the rooms but they are never shut.

 

[Gasguru]

Put the thermostat in the living room with lockshields on the living room rads.
Leave the hall rad as it is...adjust it to give a little background heat.
TRVs on the upstairs landing and bedrooms.

The thermostat in the living room will give you much better temperature control in the main comfort zone....you don't sit in the hallway.

 

[stem]

The basic rule is: Don't fit a TRV to at least one radiator that is responsible for space heating in the same area that the room thermostat is located.

The logic is simple. If all radiators in that area had TRV's fitted, it would be possible to set them a lower temperature than the room thermostat and thus leaving the room thermostat with no control over the system. It would never reach its set temperature and switch the boiler off, meaning that the boiler would continue to cycle whether the property needed heat or not.

Leaving a radiator without a TRV allows the room thermostat to reach its set temperature and control the boiler as it should. It also provides the necessary 'boiler interlock' as per the current building regulations (standard TRV's don't have a boiler interlock facility)

 

[onabudget]

Thanks for responses