Velvet wrote:
I've googled, read the faq's, but I still have some questions.

Oh, and I've just run around shutting all the TRVs to establish if the
flow rate through teh bathroom rad is sufficient should they all shut.
It's not, because it short-cycles and kettles. It's not *that* likely
during winter that it'd be on from the room stat yet the trvs would all
be shut, but it *does* happen regularly in spring/autumn, due to the
location of the room stat, and it's useful to warm the bathroom up to
help with condensation issues in there

So I'm going to have to rethink all this - it *clearly* needs a higher
flow rate through the bathroom rad, regardless of what the others are
throttled back to.

Am I doomed to failure with my thought that overly eager rads are
causing mayhem with the trvs, and open all the rads up a bit more (and
settle for a 4C drop across them, or something?)

Velvet