48kwh per day for 2 hours heat!!!

becksfaz

jalexa wrote: »

Sorry, are you saying the stat is clicking on and off after reaching the setting temperature while still displaying the setting temperature?

Yes, that is what I mean. You are lowering the temperature the stat is satisfied, therefore should be OFF.

Think that is a rebadged Drayton. Not sure which one. If you are convinced the stat is clicking on and off after reaching the setting temperature, I would say the stat is faulty (technically low hysteresis) but first I would eliminate the possibility of a low battery.

Yes it would click off if I lowered the temperature on the stat. But even then having it at a lower temp, it still clicks in when the hall is at temperature. I don't understand why it doesn't allow temp to fall say 1c before it kicks in?!
Stat was only fitted in January. Would it need a new battery already?

becksfaz

Yes Jalexa - the stat clicks on and off when it's reached and is displaying the set temperature (sometimes it will do it when it displays 0.5c HIGHER than what I've set it at!!!) But only in short bursts.
So like I'd said in an earlier post (not sure if you've read it) - that even if my stat was at set temperature for 4 hours, then boiler would kick in and out in this period, even though there is no desire for heat, hence me now turning it off at the boiler and then manually turning it back on when my hall drops 1c, checking to when it's got back up to temperature and then turning it off again! Rather inconvenient!!!!

becksfaz

Batteries replaced. Stat set to 16.5c, stat displaying 16.5c, stat still displaying flame (which it does when it's calling for heat) however boiler not firing cos I've turned it off!

lovinituk

becksfaz wrote: »

Batteries replaced. Stat set to 16.5c, stat displaying 16.5c, stat still displaying flame (which it does when it's calling for heat) however boiler not firing cos I've turned it off!

Something doesn't sound right. I'd get BG back and tell them to sort it out. Hopefully you will get a more competent engineer next time!

WestonDave

Becks - its just a question of adapting your settings to the way the stat behaves. Lets say that you want the hall to heat to 15C (to take account of the fact that it will actually be warmer in the lounge). If you want the boiler to only start heating when the temperature falls 1C below that, then set the stat to 14C because your stat seems (like mine) to try to stop it falling below the set temperature rather than keep bringing it up to the set temperature. Its only a subtle difference but its how it works.

The other option of course is simply to replace the stat as they only cost about £100 (and that's for a really fancy programmable one).

Its always a bit of a compromise unless you have full zone control but that is a fair bit of cash and not really worth it.

The reality is that its not the boiler cycling which is hurting your bills its the fact that you are heating your living spaces to 21C rather than 18C. The boiler cycling within its timed setting will use very little gas compared to heating the house to a higher temperature than you intend (or need). I suspect if you leave your stat on 16.5 as this morning, you'll find a lot less gas being used! You will however have to get used to the lounge being colder and not the tropical 21C you are used to (even though you thought it was only 18C)

lovinituk

WestonDave wrote: »

Becks - its just a question of adapting your settings to the way the stat behaves. Lets say that you want the hall to heat to 15C (to take account of the fact that it will actually be warmer in the lounge). If you want the boiler to only start heating when the temperature falls 1C below that, then set the stat to 14C because your stat seems (like mine) to try to stop it falling below the set temperature rather than keep bringing it up to the set temperature. Its only a subtle difference but its how it works.

But what they are saying is that the stat will still do its regular intermittent clicking on/off no matter what the temperature is set to. So even if the stat is set to 14C it will still click on/off when the room reaches that temperature.

WestonDave

lovinituk wrote: »

But what they are saying is that the stat will still do its regular intermittent clicking on/off no matter what the temperature is set to. So even if the stat is set to 14C it will still click on/off when the room reaches that temperature.

If its doing when set to 14C, and the stat is displaying 15C and its still keeps calling for heat then its a problem because its heating beyond any form of setting.

If what its doing is heating a bit beyond 14C but not beyond 15C then although its wierd you've worked around the problem.

If the thermostat isn't working as she wants it then the only choice is to replace it (as you wouldn't get one repaired) but that costs money so changing use of it might be a cost effective solution once she works out how to "tame" it. If its not possible to "tame" it then it has to be chucked and a new one fitted.

becksfaz

WestonDave wrote: »

Becks - its just a question of adapting your settings to the way the stat behaves. Lets say that you want the hall to heat to 15C (to take account of the fact that it will actually be warmer in the lounge). If you want the boiler to only start heating when the temperature falls 1C below that, then set the stat to 14C because your stat seems (like mine) to try to stop it falling below the set temperature rather than keep bringing it up to the set temperature. Its only a subtle difference but its how it works.

If I want to heat my hall to 15c then having the stat set to 14c won't work because the boiler will kick out at 14c as it's reached temperature. It would, however, still then continue to click in and out when at 14c, just as it does now set to a higher temperature.

becksfaz

lovinituk wrote: »

But what they are saying is that the stat will still do its regular intermittent clicking on/off no matter what the temperature is set to. So even if the stat is set to 14C it will still click on/off when the room reaches that temperature.

That is indeed correct!

becksfaz

OH OH OH - just got my daughter up from her nap and stat is displaying 16c (set to 16.5) and no flame light.

Maybe this is progress.....???

Will keep at eye on it for it falling t0 15.5 and see what happens.