On Fri, 18 Mar 2016 21:43:16 +0000, polygonum wrote:

On 18/03/2016 18:11, David wrote:
We have TRVs on our heated towel rails.

Not a problem in warmer weather because:

(1) It is a TRV so doesn't kick in if the room is warm

(2) You can always turn it down to "frost protect" if you are worried.

We don't usually need heat in the summer to dry the towels - if you
think that you will need heat then the logical thing is to use the
electrical option in addition to wet heating.

Cheers

Dave R

Thank you Dave. If I understand right, you turn your TRVs round the
house down, and (if needed) simply turn the towel rail one up. Not
having a heated towel rail, I have simply been assuming that in the
intermediate months, we will need some heating for drying some the time.

Well, no, not quite.

When it is cold enough to need the central heating on, all rooms are
controlled by TRVs. They turn the radiators off when the room is just
above 20C. This includes both bathrooms. They tend to come on first thing
in the morning after the cooler overnight setting.

So far we haven't needed to run the heating just for the towel rails,
because when the daytime temperature is in the 20Cs we don't have any
issues with the towels not drying.

Both bathrooms also have extractor fans controlled by humidistats so in
general the humidity is low enough to dry the towels without any extra
heat.

As far as I can see, if the TRVs are set correctly then you shouldn't need
to turn them down because they would turn off anyway - just turn up the
one in the bathroom and turn up the CH thermostat. This heats the bathroom
above normal but should give an extra boost to drying towels.

I think I am struggling to describe a solution to a problem that we have
never had.

Cheers


Dave R



--
Windows 8.1 on PCSpecialist box