Gas used running a boiler at different temperatures?

Zither

shortcrust wrote: »

It doesn't work very well unfortunately, I think because the pipes are too reflective. However, the return pipe is way too hot to touch. I'd guess it's much hotter than 55c.

Ah that's a shame - I was going to ask for a recommendation for which temp gun you have... and do similar with the return pipe too!

Zither

northernsoul wrote: »

To give an example of how much it can (should ? ) cost to run this house, next door, with 1 more person (should make little difference to heating a house), in a house exactly the same as mine, pay £70 a month for gas (do not know their tariff but obviously they have it hotter than me). This house costs £30 a month on a 3 year fixed isupply tarrif of 2.574/kW inc VAT + 15.5p per day standing charge.

Wow, really interesting that next door uses over double the amount of gas/cost that you do - just one house away. Do you think there's any chance that their gas meter is faulty?

Zither

shortcrust wrote: »

This whole balancing radiators thing is new to me. Is suspect that water is just rushing through mine. However, my house is warm and my gas bills are relatively low so I think I'll just leave things alone! Admittedly not very MSE.:o

What if they could go even lower though

macman

Zither wrote: »

Wow, really interesting that next door uses over double the amount of gas/cost that you do - just one house away. Do you think there's any chance that their gas meter is faulty?

It's completely irrelevant. They may leave their CH on all night, set the room 'stat higher....heat more rooms, have poorer insulation, get less sunlight. There are just too many variables.
A 1C increase in temp can add 1% to your usage.

thorganby

shortcrust wrote: »

This whole balancing radiators thing is new to me. Is suspect that water is just rushing through mine. However, my house is warm and my gas bills are relatively low so I think I'll just leave things alone! Admittedly not very MSE.:o

Actually it is very MSE because tinkering with something that you don't fully understand will most likely mess up your system, which is obviously properly commissioned and working well for you, so I totally agree leave well alone.

Zither wrote: »

Have to agree with northernsoul pal. Your post might have been well intended, but it just comes across as aggressive and unhelpful.

Zither you basically ignored or simply didn't understand the advice that you were given in your last thread "Why is my house cold?" here so the many posters trying to help simply gave up on you.

I very much doubt if you actually needed the new boiler that you have now had fitted because what you described pointed to a circulation pump problem, so you have likely been sold a new boiler that you didn't really need but it did come with a new pump that is now circulating the water effectively around your house.

Now that you have a new boiler, you still seem to think that setting a lower flow temperature will use less gas and save you money, even though it will obviously need to be on for much longer to raise the temperature in your property!

If as you have previously said, you can only afford to have the heating on for short periods, then setting the flow temp low is lunacy, as you want to get the maximum heat into the house in that short time!

northernsoul

“
Wow, really interesting that next door uses over double the amount of gas/cost that you do - just one house away. Do you think there's any chance that their gas meter is faulty?
Originally posted by Zither
”
It's completely irrelevant. They may leave their CH on all night, set the room 'stat higher....heat more rooms, have poorer insulation, get less sunlight. There are just too many variables.
A 1C increase in temp can add 1% to your usage.

Hi.
I don't think its completely irrelevant.
They live next door to me, so weather, wind, temperature is the same. They have a similar level of insulation ie not much, apart from they do not have Kingspan on the ceiling in their attic. To balance that they have laminate flooring all downstairs, which I think (though maybe wrong) stops draughts from the floorboards. They are not a moneysaving family and just run the central heating how they want with not looking first at the cost. I posted it because I think their costs are a fairer representation of the normal cost for this type of house. Also what you can save if you are a skinflint like me.
Edit. I have asked them questions and definitely know they do not leave the CH on all night and their radiators are 65C at the top so boiler probably running at 70C. Their house is a fair bit warmer (they set the stat to 20 sometimes 21 but feels warmer) but I think I already said that.
Edit. They have a 2 month old Ideal condensing boiler (though the costs I quote are from their old condensing boiler)

northernsoul

Zither wrote: »

Wow, really interesting that next door uses over double the amount of gas/cost that you do - just one house away. Do you think there's any chance that their gas meter is faulty?

I dont know for sure but unlikely. They had a smart meter fitted recently but they have not said there has been any difference in costs. Their monthly cost was based on the old boiler. They do think their new boiler (2/3 months old) is better than their old condensing boiler, but from a warming up rate rather than mentioning anything about lower running costs (may be that when the system was emptied to put in the new boiler some sluge was removed - just guessing). Forgot who they are with so dont know their tariff although they did show me their last 3 month bill, but i cant remember exactly what was on it.