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Central Heating questions: New build radiators

Hi

I own a new build property (well 4yrs old), and moved in 2 years ago.

When I had the first boiler inspection, the chap mentioned that the systems in new builds were a bi 'different'.

The oddities (that I see it as) ready to be educated here!, are:
-The radiator in the upstairs hall way is connected to the downstairs thermostat and not the upstairs thermostat.
-The bedroom radiator does not have a TRV on it - so, it is 'always on'.

This isn't really creating a problem; in fact we seldom have the heating upstairs on in the past 2 years, but I am keen to understand what is going on here.

Also considering adding something like Hive, and thinking what the impact (if any) may be.

Thanks!
 
New builds are weird

Normally master bedroom on its own zone hence no trv (room thermostat in there ?)
 
New builds are weird

Normally master bedroom on its own zone hence no trv (room thermostat in there ?)
Yes, the room thermostat is in there....!

Ah, so maybe the upstairs thermostat (which there is only one... in the bedroom) controls the bedroom ONLY! and the other rooms are controlled by the downstairs thermostat!?
(Something ive never considered or tested).
 
Most common way they do it, (it’s stupid in my opinion)

Easy way to tell turn the other thermostat off eg 10dc and turn the bedroom one up and see which rads heat
 
So, this is what is happening:
-Downstairs Thermostat: Controls all rads downstairs, the upstairs hallway rad, bedroom 2 rad
-Upstairs Thermostat: Controls Main bedroom + en-suite, upstairs bathroom, bedroom 3 rad

Totally bizarre!
 
Further to this... we would like to heat the en-suite radiator but NOT the bedroom radiator...

As the bedroom radiator does not have a TRV.... what is the solution, I assume a TRV can be added? and if so, what sort of price am i looking at?

Thanks!
 
Further to this... we would like to heat the en-suite radiator but NOT the bedroom radiator...

As the bedroom radiator does not have a TRV.... what is the solution, I assume a TRV can be added? and if so, what sort of price am i looking at?

Thanks!

As the room stat is in there unfortunately you can’t add a trv
 

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