Gas & Electricity

Claytop said:
Thing about turning your boiler down, surely it all works out the same.

Higher temp, rooms heat up quicker, turn off heating earlier

or

Lower temp, rooms heat up slower, heating on for longer

No? What am I missing?...
Click to expand...
I don’t think your water has to be at 100% to get the heat in your radiator it goes off your trv and thermostat.
 
Claytop said:
Thing about turning your boiler down, surely it all works out the same.

Higher temp, rooms heat up quicker, turn off heating earlier

or

Lower temp, rooms heat up slower, heating on for longer

No? What am I missing?...
Click to expand...
it's the condensing boilers that work more efficient at lower temperatures, at higher temperature the condensing element has little effect so you're burning far more gas to maintain the heat. At a lower temperature the boiler starts to use the residual energy from the condensing element instead of gas so you get a double boost in less gas used
 
Claytop said:
Thing about turning your boiler down, surely it all works out the same.

Higher temp, rooms heat up quicker, turn off heating earlier

or

Lower temp, rooms heat up slower, heating on for longer

No? What am I missing?
Click to expand...

Wrong.

Google best boiler rad and water temperature.

There is a wealth of practical heating information online if you can be arsed reading it.
 
jrb said:
Wrong.

Google best boiler rad and water temperature.

There is a wealth of practical heating information online if you can be arsed reading it.
Click to expand...
Tbf I was just on the money saving boiler challenge website and at the end it states it may take a little longer to heat up the rooms when it's set to a lower temperature.
 
Claytop said:
Tbf I was just on the money saving boiler challenge website and at the end it states it may take a little longer to heat up the rooms when it's set to a lower temperature.
Click to expand...
Takes longer to heat up a room but more than outweighed by the cost savings. Additionally it stops the heating over compensating. If your rad water temp is at max then it will keep heating until it gets to the set temperature, but because the heat remains in the radiator and the pump will still be running it will actually overshoot the target temperature as the rad is still a lot hotter than the air.
At a lower water temp the heat builds more gradually and is therefore easier to control.
Manufacturers of thermostats will say that they compensate for the overheating effect, but in my experience they don’t as you would need to know things like the volume of air in the room you are trying to heat, humidity level and the efficiency of the radiators (aluminium rads are more efficient than traditional steel).
Try turning it down to 60deg and see how you go on. We have pretty big radiators and seem to be fine at around 55deg.
 
Kompany Car said:
Takes longer to heat up a room but more than outweighed by the cost savings. Additionally it stops the heating over compensating. If your rad water temp is at max then it will keep heating until it gets to the set temperature, but because the heat remains in the radiator and the pump will still be running it will actually overshoot the target temperature as the rad is still a lot hotter than the air.
At a lower water temp the heat builds more gradually and is therefore easier to control.
Manufacturers of thermostats will say that they compensate for the overheating effect, but in my experience they don’t as you would need to know things like the volume of air in the room you are trying to heat, humidity level and the efficiency of the radiators (aluminium rads are more efficient than traditional steel).
Try turning it down to 60deg and see how you go on. We have pretty big radiators and seem to be fine at around 55deg.
Click to expand...
Thanks, I don't have a digital display on the boiler as far as I'm aware so will just turn it down quite low on the dial and monitor it.
 
Claytop said:
Thing about turning your boiler down, surely it all works out the same.

Higher temp, rooms heat up quicker, turn off heating earlier

or

Lower temp, rooms heat up slower, heating on for longer

No? What am I missing?...
Click to expand...
I tries turning the boiler temp down, and as you said it takes longer to get to the temperature you want. Have now turned it back up.
 
Claytop said:
Thanks, I don't have a digital display on the boiler as far as I'm aware so will just turn it down quite low on the dial and monitor it.
Click to expand...
If the rad water temp has an “e” setting that’s usually a flow temp of 70 degrees which taking into account the drop from the rads results in a return temp of 50 degrees, which is about the threshold for the boiler to start recovering heat in condensing mode.
Any lower than this setting and it will be even more efficient, but like I say reduce it a bit and see how you go on as you may find it just takes too long on a very cold day.
One thing I wouldn’t advocate doing is turning down the tap water temp as you need it high enough to prevent legionella (so around 60 deg).
 
AKA 55 year old teenager said:
Ofgem have just increased the price cap to £4,279. This will come into effect from Jan next year!!!!!
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Getting silly now, they are due to go over £5k in April with the cap been £3k, thank god central heating will be off by then, if and it’s a big IF things turn back to normal then we will all have loads of extra cash to spend but I have a funny feeling they will never drop to pre Covid prices. Best we get those nuclear plants, wind farms and tidal stuff built though I’ll be long gone by then.
 
When I had my new Ideal combi boiler fitted about 2 years ago I also had a combisave and filter fitted at the same time. There’s a combismart out now, which is shaped differently, but does the same job. The magnetic filter cleans the water before it goes into the combi Boiler. I also get the boiler serviced every year, which maintains it’s 12 year guarantee if anything should go wrong with it.

Stock picture.

Combisave.

E8CD1F27-05CB-493F-99F7-79EC8B015DAF.jpeg

British Gas combismart promo video. How it works.

www.britishgas.co.uk

CombiSave | British Gas

Reduce the amount of water and gas used with the award-winning Combisave. British Gas can install a Combisave to most combi-boilers.
www.britishgas.co.uk www.britishgas.co.uk

Compact, highly efficient magnetic filter removes up to 100% of suspended black iron oxide, to protect and restore central heating systems. Rapid-fit connectors for quick installation and faster servicing.

4BF52887-845A-4DBC-A515-2097A8872ADA.jpeg

www.screwfix.com

Adey CP1-03-00022-01 2 Magnetic Filtration 22mm - Screwfix

Order online at Screwfix.com. Compact, highly efficient magnetic filter removes up to 100% of suspended black iron oxide, to protect and restore central heating systems. Rapid-fit connectors for quick installation and faster servicing. FREE next day delivery available, free collection in 1 minute.
www.screwfix.com www.screwfix.com
 
It had not occurred to me until I read a press story today, the taxpayer picks up the gas and leccy bill for MPs second homes. Humph.
 
KS55 said:
It had not occurred to me until I read a press story today, the taxpayer picks up the gas and leccy bill for MPs second homes. Humph.
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Yep along with lots of other things. Always amuses me when they say they need a second home in London, because they spend a long time working unsociable hours there.
As someone who spent the best part of 10yrs on the 5:11am train to London each day and getting back home at 9pm on an evening, I find it particularly grating.
 
Pe
Alan Harper's Tash said:
Wife was interviewing at home yesterday. Having the heat on for 7 hours cost us £11.

And it’s going up next year. Madness.
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people on JSA or legacy ESA (cont based) get about £100 a week more or less to live on.

My leccy and gas is £70 a week......they're well and truly fucked
 
Alan Harper's Tash said:
Wife was interviewing at home yesterday. Having the heat on for 7 hours cost us £11.

And it’s going up next year. Madness.
Click to expand...
Was that the first time it’s been on? Ive ended up with covid this week and put our heating on for the first time on Tuesday. The full day was around £12 in gas. Since then it’s been left on and averaged about £7 a day. So I think it used a lot more that first time to get the house up to temp
 
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