Do I have to have a room thermostat?

Under approved document L guidance for heating systems

On all new and replacement systems of heating in any domestic building requires (since 2010) that it be split in two two heating zones with one zone having as a minimum independent temperature and timing controls, and the second zone having as a minimum heating temperture control.

In essance it breaks down to living areas being timed and heat controlled and none living areas (like bedrooms) having temperature controls only. The way of meeting these requirements is to install thermostatic radiator valves on all radiators and in the living area zone a room thermostat, and timer/programmer and the non-living areas have just the TRV's.

You can download for free the document and look for yourself at

http://www.planningportal.gov.uk/uploads/br/domest...

Marvin Shaw

Technical fella

The boiler has a thermostat inside it, detecting the heat of the returning water. If it is coming back without losing much heat, it shows the flat is already hot enough and, if it is set properly, should stop heating water for the central heating system. It is not as good as using a room thermostat that detects the actual temperature of the main living space (people do put them elsewhere but it is best to put them where they matter most) or thermostatic radiator valves (TRVs). A room stat will only do what the boiler's own stat does - turn the heating on or off. I do not know of a regulation requiring the installation of a room stat or TRVs.

Foobix and Boggy are genuine. this is now 'staggering education' to in useful situation a room thermostat on the area of TRVs. The boiler won't fire if the room temperature is above what you have set on the room stat. evaluate a time in spring or autumn at the same time as the heating gadget is programmed to return on indoors the morning and that's an extremely warmth morning. in case you probable did no longer have a room thermostat the boiler would desire to fire as wide-unfold and grant heated water around the gadget delivering heat temperature that's no longer mandatory and you do no longer choose. ultimately the temp. of the water returning to the boiler is on the factor of that at which this is leaving and so the boiler stat will carry out and close off the boiler. With a room stat the boiler would have by using no ability fired indoors the 1st place and so which you have stored all that gasoline!

In short only new installs should have a thermostat installed.

However as a gas installed you can't force anyone to pay for anything it is their house at the end

of the day.

Fitting a wall thermostat is straightforward to an existing system.