Their only useful feature is the different temps at different times thing, and it's only useful if your routine is regular enough for a fixed program to work for you. Otherwise it's always much easier to use an old fashioned knob to do the same thing. Don't forget it won't just be you using it, and people can get pissed off when they can't get it to do a simple job & aren' t interested in learning how to work it.
My experience of one was not constructive.
NT
On the ones I've owned a manual override has been as easy as a single button press. If off pressing a single button will put it into the mode that calls for the higher user programed temperature. It stays in this mode until manually swithed back to off or until the next automatic on/off sequence starts at which time the manual override is cancelled.
Manually raising of lowering the temperature is as simple as pressing the up or down button. Again this override is automatically cancelled on the next on/off sequence.
With a old fashioned knob you may get someone setting it to, say, 30C and leaving it there erroneously believing the room will heat up faster. With a basic electronic device the manual overrides are automatically cancelled at the time of the next program cycle.
alan_m wrote in news: snipped-for-privacy@mid.individual.net:
Agree fully
Eh?????
Yup I find the better prog stats have a number of advantages over the mechanical type - not least better temperature regulation.
On my VR470 weather compensating stat, it has a rotary knob that you can treat just like that of a mechanical stat. The display always shows you the current inside and outside temps, along with the currently demanded temp. If you twiddle the knob, it just adjusts the demanded temp. When you stop twiddling it gives you the option to press a button to make the change permanent and update the program for that time slot. If you just leave it alone, then new temp demand is discarded at the next time slot change.
Quite. Like if single, and out at work all day. Rather the same as being able to control the heating from your phone.
IME they don't quite last a year but I may be replacing them overcautiously whenever I notice the battery warning indicator on the thermostat.
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