On Thu, 28 Aug 2003 00:21:00 +0100, Andy Hall
wrote:

On Wed, 27 Aug 2003 22:26:21 GMT, (Frank
Watson) wrote:



Ah, I understand what BigWallop was saying. My thinking is that if the
weather is cold enough to need the bathroom rad on, the main system
thermostat will already have the boiler pumping hot water to other
radiators in the cirquit.. Does that make sense?

Frank

That would be OK.

One other thing that you could do is to make sure that the bathroom
radiator is well oversized for the room and back it off with a
thermostat (i.e. use a thermostat/timer) or even a TRV on the
radiator.

This would help, but not guarantee that the bathroom gets a fair dose
of heat even if the rest of the house is warm. You could even cheat
a bit if needed and reduce the flow through the radiator where the
main room thermostat is. However you might then need to rebalance
the system.

Another aspect to this is the Wiring Regulations and electrical
accessories in bathrooms. There are restrictions of placement based
on distances from the bath and shower in bathrooms, although one
option might be to get an IP rated thermostat. I believe that there
is at least one room controller that can have a remote probe for
sensing the temperature, so you could have the main electrical piece
outside the room. There are also the wireless thermostat/timers
which have a battery in the control piece. That would be OK for a
bathroom (provided that the electronics don't mind the humidity), but
they are pushing up the cost.


Thanks for the input. Yes, the electrical accessories-in-bathrooms is
a problem, but even more of a problem is the added clutter. in what is
a small uncluttered bathroom. I was really hoping that someone
plumbing-supplies company might offer a TRV with a built-in
battery-operated timer; something that simply replaces a standard TRV.
What a nice, neat solution that would be!

Frank