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Thermostat with oil heating
pc10
Posts: 368 Forumite
Having just moved into a new house - I am having some difficulty with the heating.
There is a condenser boiler installed - oil heating - seems pretty new.
In the hallway is a timer - programmer.
Nearby also in the hallway is a thermostat.
If I have the programmer set on 'continuous' and the thermostat set at either 10/20 or 30 degrees, I think it makes no difference to how hot the house/radiators get.
Near the thermostat, I have an energy monitor which also shows the temp - the highest it has got to is 20 degrees which is fine, comfortably warm.
Does this sound as if the thermostat is not working properly? I understood if it was set to eg 15 degrees, that would switch the heating off once 15 had been reached and then on again when it fell below 15.
What do I need to do to get the temp above 20? On the actual boiler, once I remove the door panel, there is what seems like a temp guage (from small flame to big flame - it is set in the middle) - however I'm not sure if its wise to change these settings?
Hope someone can help please.
There is a condenser boiler installed - oil heating - seems pretty new.
In the hallway is a timer - programmer.
Nearby also in the hallway is a thermostat.
If I have the programmer set on 'continuous' and the thermostat set at either 10/20 or 30 degrees, I think it makes no difference to how hot the house/radiators get.
Near the thermostat, I have an energy monitor which also shows the temp - the highest it has got to is 20 degrees which is fine, comfortably warm.
Does this sound as if the thermostat is not working properly? I understood if it was set to eg 15 degrees, that would switch the heating off once 15 had been reached and then on again when it fell below 15.
What do I need to do to get the temp above 20? On the actual boiler, once I remove the door panel, there is what seems like a temp guage (from small flame to big flame - it is set in the middle) - however I'm not sure if its wise to change these settings?
Hope someone can help please.
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Comments
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If it's a conventional thermostat which audibly clicks on and off thensee what temp. It clicks on/off at. Does that figure agree with your energy monitor? If so then the stat. Is probably ok. When the boiler is running turn up the stat. To a high level ....does the boiler stop? If so then the boiler/stat connection is OK. I suggest that the temp. Control on the boiler is kept at a middle setting at least until you've checked everything else.0
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Control in the boiler dictats what temp the water leaves the boiler.
If it is low, you'll only get warm water, so whaterver you set the hall thermostat at it will never heat the rads enough to warm the house to the leven the hall stat wants - so will constantly fire the boiler.
If the boiler stat is very high, boiling water will come out, and when the hall stat calls for the heat the rads will get rapidly hot, the air temp will rise, and the hall stat will turn off the boiler.
But obviously a high boiler stat setting will use more oil (to produce the boiling water). So you need to experiment to get the boiler stat high enough to properly heat the rads (and water in the tank), without overheating and wasting fuel.0 -
Rereading my post I see that I made an error: turn the stat. To a LOW level and see if the boiler stops.0
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Thanks for the replies.
Will have a play about tomorrow with settings etc.
The thermostat looks quite basic - it clicks at 25 degrees so is that significant?0 -
You have a very warm hall, or an inaccurate thermostat!!
That thermostat switches on/off the pump and heating when it clicks.
It certainly doesn't feel overly warm!
I have turned the boiler up to the highest setting and the thermostat is set at 30.
It clicks at 25.
The energy monitor reads 19!0 -
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Last night kept the heating on all night (having turned the setting on the boiler up to the max) and the thermostat on at 15 degrees.
Got up at 6am - house was really hot - energy monitor was at 20 degrees.
Turned off all heating until later in the day - turned boiler setting down to about midway setting and thermostat still at 15 - heat has been on all day - energy monitor says 19 degrees....
I think now that neither thermostat nor energy monitor are accurate!!!
So until I get this sorted, in terms of energy efficiency - if I have boiler setting on midway and that's a comfortable heat if I have the programmer on at constant - will the boiler start and stop whilst maintaining that heat?0 -
oh and thermostat and energy monitor are not near a radiator!0
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I've got oil heating and one those basic thermostats in the rented house.
My thermostat is woefully inaccurate to the point that with it se to about 13c its clicking on and off with a thermometer showing the temperature is actually 19c in the room.
20c should be comfortable, if the energy monitor is showing the room as being 20c but its really hot then maybe just the energy monitor is inaccurate.
I would get a thermometer and place it in the same room by the thermostat and let it settle. Then turn the thermostat until it clicks on/off and see how that varies with the actual temperature.
I leave my heating on 24/7 during the winter months, without touching the controls at all. Doing this I can get a whole 12 months from 1200 litres of oil, thats maintaining around 19-20c in the living room. I found that letting the house cool down and then using the boiler it can take many hours to get the house back to temperature, thus negating any saving made by having it switched off when I am not in (boiler output set to max water temperature).0
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