"Christian McArdle" wrote...

Indeed, although it might be better to switch the TRVless radiator to the
lounge. A room thermostat in the bathroom could be less than ideal.

Christian.

Thanks for the replies - I haven't got a room stat, either in the
bathroom or in any other room... which is obviously why the room's
getting so warm. I'd like to put the TRV back on, but I don't want to
if it's going to cause problems if I don't have a bypass fitted (I
seem to remember that I did have a pump go about 18 months ago).

The installation instructions for the (Myson) TRV's say that a bypass
should be fitted - the problem is that I don't know if there is one.

The plumber who fitted the boiler fitted the TRV's on all the
radiators (at the same time as installing the boiler). I don't know if
that means that it's fair to assume that it's very likely that he
would have fitted a bypass.

Regards,

Michael