Radiator under window sill

[JohnW2]

One further (I hesitate to dare say 'final'!) question ...

In that bay, I have 1,960 mm horizonal space ('between walls') available, so an 1,800 mm rad (with valves) ought to just about fit. However, the TRV will then be 'tucked into the corner', very close to the reveal of the bay,and probably beneath the sill (about 600 mm above TRV). In that situation, will the TRV 'work' satisfactorily?

 

[Agile]

TRVs only operate on the generality of the temperature around them.

In that case, with 100mm gap at the top, the heat should be able to get out well at the top and so the temperature around the valve will be pretty much that of the lower part of the room.

So I do not forsee any significant problem.

 

[JohnW2]

TRVs only operate on the generality of the temperature around them.

Thanks. That was my slight concern - it felt as if the TRV might be trapped within its own little 'microclimate', very close to the rad, in that corner!

In that case, with 100mm gap at the top, the heat should be able to get out well at the top and so the temperature around the valve will be pretty much that of the lower part of the room. So I do not forsee any significant problem.

Thanks for the reassurance!

I have to say that I've always wondered how/why TRVs seem to work as well as they do, because they are sensing the temp so close to the radiator. If one puts one's hand in the vicinity of the TRV (i.e. very close to the rad), it feels much hotter than 'the room' in general. However, I presme that's an unnecessary concern, since they do seem to work reasonably well

Kind Regards, John