On 08/09/2019 12:44, charles wrote:
In article , David
wrote:
We are heading for a cool week with maximum outside temperatures forecast
to be around 14C to 16C.

In spring this would, to me, be a sign that it was still too early to
turn off the CH.

In autumn it feels as though the extra jumper route is appropriate for
the moment.

I know that some people leave the CH on year round on the sensible
argument that they maintain a constant indoor temperature so why ever
turn it off?

I seem to have a few mental hang ups about temperature; for example if
we have hot days and cold nights it doesn't feel right to heat the house
overnight then throw the doors wide open during the day to allow that
expensive heated air to flow out.

I think if I know that it is going to be eventually warm without the CH I
am reluctant to turn it on. If it is cold and miserable outside I seem
to want a higher average temperature inside. Not logical (as in wear a
jumper) but then I can probably afford the extra gas to raise the inside
temperature to 20C (or a bit more) so the house is toasty when I come in
from the cold.

We also have significant solar gain at the back of the house so at the
moment 50% of the house is around 22-24C and the other half at around
18-19C. Noting that I did try the experiment to move the hot air to the
cold rooms but couldn't achieve a high enough flow rate with extractor
fan technology. I think you would need industrial size air ducts (the
kind people crawl along inside in films) to achieve an adequate rate of
air exchange.

No doubt things will get slowly colder during the week as heat outflow is
greater than heat inflow over a number of days.

For those who turn the CH off in the summer, is it CH on time again? I
assume some of those in the NW have already passed that point.

we turned ours on the day before yesterday.


The Jet Stream forecast suggests the coming weekend will be an Indian
Summer.

It will be the local Harvest Festival Village Fete on Sep 28th, and
since it started about 15 years ago, they have never had bad weather,
and usually nice and warm.