Now I have a programmable room thermostat....

[jchasty]

Hi All

I was very kindly and quickly helped yesterday with an installation question for a programmable room thermostat - all now in and working!

It is one where you can program different temps for different times of the day. Prior to this, our boiler was programmed to go off at night for example.

So, my question is, thinking of economy, now that we have this new thermostat, should we leave the bolier on 24x7 (in terms of the Central Heating) and just use the new thermostat?

Or...does leaving it on use more gas? i.e. does it still the heat the central heating water, even if the thermostat is down low?

Thanks again in advance kind people!

John

 

[D_Hailsham]

So, my question is, thinking of economy, now that we have this new thermostat, should we leave the boiler on 24x7 (in terms of the Central Heating) and just use the new thermostat?

I assume this means that you have left the existing timer in place and set it to CH always ON. If so that's OK, the programmable stat will control everything.

When setting up your new programmable stat, set the last time/temperature to a low temperature, e.g 2300hrs - 10°C. The boiler will then go off at 2300hrs and stay off until the morning; it will only come on if the temperature drops below 10C.

 

[ajrobb]

One setting for programmable thermostats is to drop the temperature by just a few degrees at night. In cold weather, the heating can come on in the night but in mild weather it will stay off. This will help the house warm up quicker when needed. I've noticed that the house will warm up by 4°C in half an hour but can take several hours to warm up by 8°C.

The timer and the thermostat are often wired in series, so there is no difference between being off on the timer or the thermostat.

So, if you sometimes feel cold at night, you can use the thermostat to stop the house getting too cold. If you don't feel cold then you can set the night temperature to 10°C for 'frost protection'.