On 10/11/2019 10:02, T i m wrote:
On Sat, 09 Nov 2019 11:25:13 +0000, T i m wrote:

On Fri, 8 Nov 2019 11:04:14 -0800 (PST),
wrote:

On Friday, 8 November 2019 18:14:27 UTC, T i m wrote:
Combi boiler in a flat with just a room stat in the lounge (from what
I can see).
Can you get (at a reasonable cost) a simple Clock / timer stat for
such circumstances and if so, would / could they be battery powered,
assuming the stat isn't currently fed by mains?

Programmable thermostat. £29 + VAT

https://www.tlc-direct.co.uk/Products/SMTRT035.html

battery powered, contacts are changeover volt-free

Excellent, thanks very much for that mate. It seems to tick all the
right boxes. ;-)

I think it would be used in the 5+2 day mode as one occupant has the
weekends off and the other two other days in the week (where it could
just be overridden)?


Having a look though the instructions I'm not sure if this unit is as
'flexible' as I might have hoped, or maybe it is but I just wasn't
expecting it to work this way ...

https://www.tlc-direct.co.uk/Technic...structions.pdf

"10.
Programming Time/Temperature Periods
Note:
€¢
There are no OFF periods with this controller. As soon as a Start time
begins, heat will be demanded until the temperature reaches/falls to
the selected set point, then it will move on to the next Start
time/temperature period, and so on.

The most boring instructional video I've seen in a long time.
https://www.youtube.com/watch?v=6zfWEVtL5Co

No off periods but you could set every other start temperature to, say,
5 C which will effectively turn the CH off unless the pipes are about to
freeze.


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