I'm having difficulty getting my (gas) central heating to start in the morning. The digital control is situated on an internal wall (engineering brick) which has underfloor heating (v. efficient!) on the other side. Is it likely that the heat from the underfloor heating will affect the heating control by heating up the wall to a temperature above that set, so the heating does not come on.

If so, would moving the control to a different wall, away from the heat source be a good idea? Or is there another solution, apart from jacking the temperature up to uncomfortable levels?

Grateful for any suggestions.

NB Boiler is new and working fine.

gav8553 brought next idea :
If so, would moving the control to a different wall, away from the heat
source be a good idea? Or is there another solution, apart from jacking
the temperature up to uncomfortable levels?

Of course it will affect the stat and the temperature it 'sees'.

You have more or less confirmed that by suggesting that the boiler is
not firing, but you are still cold. If it is a wireless one, then it
should be fairly easy to try various alternative positions for the
stat, to see where works best.


--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

On 01/11/12 10:08, gav8553 wrote:
I'm having difficulty getting my (gas) central heating to start in the
morning. The digital control is situated on an internal wall
(engineering brick) which has underfloor heating (v. efficient!) on the
other side. Is it likely that the heat from the underfloor heating will
affect the heating control by heating up the wall to a temperature above
that set, so the heating does not come on.


could be. Just see if it is calling forheat.

If so, would moving the control to a different wall, away from the heat
source be a good idea? Or is there another solution, apart from jacking
the temperature up to uncomfortable levels?


get a radio stat if you need to move it.


Grateful for any suggestions.

NB Boiler is new and working fine.






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rewarded with goods and services paid for by the confiscated wealth of a
diminishing number of producers.

On 01/11/2012 10:08, gav8553 wrote:
I'm having difficulty getting my (gas) central heating to start in the
morning. The digital control is situated on an internal wall
(engineering brick) which has underfloor heating (v. efficient!) on the
other side. Is it likely that the heat from the underfloor heating will
affect the heating control by heating up the wall to a temperature above
that set, so the heating does not come on.

If so, would moving the control to a different wall, away from the heat
source be a good idea? Or is there another solution, apart from jacking
the temperature up to uncomfortable levels?

Grateful for any suggestions.

NB Boiler is new and working fine.


Being a digital control, does it have a display which shows the current
temperature and target temperature (maybe by pressing a button)? If so,
you should be able to see whether the displayed temperature is being
biased by the nearby UFH. There may well be other reasons why the
heating isn't starting but if it *is* due to bias, the obvious solutions
a
1. Bias the stat to lie about the temperature it sees (some have an
offset facility for this purpose), OR
2. Move the stat somewhere where there won't be a bias, OR
3. Replace the stat with a wireless stat, and experiment to find the
best position
--
Cheers,
Roger
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