In message , at 16:33:44 on Sat, 10 Oct
2020, "Dave Plowman (News)" remarked:
In article ,
Roland Perry wrote:
And most of my TRVs are in rather inaccessible places (mainly behind
bits of furniture).

Means the rads are too?

Some bits of the rads are, but especially the ends. A couple of the
bits of furniture are tables/desks, and don't prevent the heat getting
to the room under the tabletop (and of course up the wall too - but
that's because what we call "radiators" are actually more accurately
"convectioners").

A TRV works by convection too. And anything which restricts the flow round
the rad will effect the output.

Never had any problems so far in the way they affect the output.
--
Roland Perry