the result -Gas central heating - Cheaper to leave on constant ..almost

macman

prosaver wrote: »

true
however i remember a real difference this winter, maybe it was a little milder but not mild bit it was still winter weather.

the warmth was like an hotel, maybe thats why library's, schools and public places leave there heating on..there the ones who are always trying to save money

ambient temperatures on every day of the billing period
the question would be.. how much, 1 or 2 degrees would effect the houses temperature- as its heavy insulated..meaning stopping the cold coming in, as well as stopping the heat going out..
who knows?

Hugely-The EST guideline is that turning your CH down 1C can reduce your heating bills by 8%. So if it's 1C warmer, that's 8% off the energy needed to bring it up to the required temp. By ambient temp, I am referring to the internal temp before heating comes on.
Of course insulation is a factor , because it slows the rate of heat loss.

prosaver

i live in sunderland and this is the nearest data i have for the billing period of december to feb 2011
the weather isn't much different from last year as yours.. can compare from your chart..
. as we live near the sea and keeps us not as snow bound as the inland cities or towns.
where did u get the data for this year?

prosaver

sorry wrong year-- heres the right one

prosaver

December 2010 was colder ..not much though,
........(shrug shoulders)

cant get data for jan12 and feb12

prosaver

gotta go a do some work byeeeeee

grahamc2003

prosaver wrote: »

This winter i done an experiment with the gas.

Not the most confidence building start...

prosaver wrote: »

Last year i use to get in and turn the gas on, and when it was warm enough, switch it off..then when it got chilly see how long we could last and then switch it on...till about 9.30pm ..wore jumpers and used throws (blankets)
This year i thought, sod it and kept it at a low temperature (t-shirt comfy)

Low temperature and t shirt comfy?



There's nothing to be concluded from your experiment.

If the 'low tshirt' temperature you set it to this year was zero degrees, then you'd use less gas than last year.

if it was 15 degrees, it's debatable.

If it was 20 degrees, then probably more expensive

If higher then 20 then certainly more expensive.

Not the most rigorous scientific test at all - in fact completely worthless I'm afraid.

You don't even need to do any tests anyhow, just know some basic physics (and make reasonable assumptions, like you boiler is a normal boiler, your house a normal house etc etc).

Then, if you compare like with like, e.g. have a max temperature of 20C say set by a thermostat,, then manually turning it on when you're there and off when you're not and controlled by the thermostat too, will cost less than leaving it on all the time just controlled by the thermostat.

If you went away for a year, then the manual strategy would cost you nothing while the 'always on' strategy would cost quite a bit.

grahamc2003

macman wrote: »

Hugely-The EST guideline is that turning your CH down 1C can reduce your heating bills by 8%. So if it's 1C warmer, that's 8% off the energy needed to bring it up to the required temp. By ambient temp, I am referring to the internal temp before heating comes on.
Of course insulation is a factor , because it slows the rate of heat loss.

Yeah, the last 1 degree setting on the thermostat really costs a lot. Likelwise, a one degree drop in outside temperature has a relatively large effect on heating costs.

Of course, sitting in a warm living room with the temp set by a thermostat tells you nothing of how much it is costing you - that depends on the temperature difference. One day, the cost may be a quid to keep it 20C, the next day £4, the next day £6 - all 'invisible' to most homeowners. That's why, after a very cold prolonged spell, you get a plethora of posts from people saying their meters aren't working properly just after the bills go out.

prosaver

grahamc2003 wrote: »

Not the most confidence building start...



Low temperature and t shirt comfy?
last year high temperature for an hour turn it off
wait till its gets cold..



There's nothing to be concluded from your experiment.

If the 'low tshirt' temperature you set it to this year was zero degrees, then you'd use less gas than last year.


if it was 15 degrees, it's debatable.

If it was 20 degrees, then probably more expensive

If higher then 20 then certainly more expensive.

Not the most rigorous scientific test at all - in fact completely worthless I'm afraid.

You don't even need to do any tests anyhow, just know some basic physics (and make reasonable assumptions, like you boiler is a normal boiler, your house a normal house etc etc).

Then, if you compare like with like, e.g. have a max temperature of 20C say set by a thermostat,, then manually turning it on when you're there and off when you're not and controlled by the thermostat too, will cost less than leaving it on all the time just controlled by the thermostat.

If you went away for a year, then the manual strategy would cost you nothing while the 'always on' strategy would cost quite a bit.

this year
1, t shirt temp is about 16c
2,left on for 6 hours a day 16c
to see the bill see first post
last year in more detail:
blasting it high 20c- switching off when temp achieved
waiting till cold and then switching it back on ...doing this off and on for 6 hours.
only comparing dec to feb this year and last

HappyMJ

prosaver wrote: »

this year
1, t shirt temp is about 16c
2,left on for 6 hours a day 16c
to see the bill see first post
last year in more detail:
blasting it high 20c- switching off when temp achieved
waiting till cold and then switching it back on ...doing this off and on for 6 hours.
only comparing dec to feb this year and last

16 is not t-shirt temperature...21+ is a true t-shirt temperature. 18 is on the edge and 16 requires a blanket or a throw on the sofa to keep some warmth in. I don't like it warm myself. I set my thermostat to 18 degrees but I would not call it t-shirt temperature. I still need a blanket/throw to cover myself to keep warm. If I have guests I'll up it a bit.

prosaver