How much would this cost?

[foteu]

to have heating on 20 hours a day at 20 degrees?

this is needed for the next month unfortunately and I can’t seem to get any indication as to cost even calling the energy company

It's a how long is a piece of string question - depends on how efficient your heating system is, how well insulated your home is, how many rooms/floors/radiators you have, the temperature outside etc.

Nobody can tell you - too many variables.
As soon as the internal temp hits 20 the boiler will stop, each time, and the internal temp will go on rising while radiators are warm.
Boiler will eventually come on again when internal temp drops back to 19.9, but how long that will take depends on outside temp, house insulation etc.

There is no way for anyone to tell you really. It will depend on what form of heating you're using, how well insulated your house is etc.

Thanks is there no ball park? I have never lived alone and so never looked into it, it could be 100 a day or 20 for all I know!

Do you need to heat the whole house to that temperature for that long? Could you heat one room instead?

What is your rate?

Why do you need it on for 20 hours at 20?

Take a meter reading at a set time, then again 24 hours later. This will tell you how much energy you have used in 24 hours, and you can estimate (still an estimate, but at least a guide) from there.

If you give your energy supplier your boiler details they might be able to supply a running cost per hour, but nobody can say how many hours the boiler will actually be on each day.

That's a good idea. Do it for one day and see how many units it uses. It will depend how cold it gets also

Mine used just over £1 an hr today

Just for info OP - I had mine on 19 today for 1 hour & it was about £1.20ish

At the moment mine uses about £1 for the first hour, and about 20p an hour after that if it stays on. That's at 18°.

Last winter I heated my three bed house ( just me living there) for 15 hours a day at 19°, boosted to 20° in the late afternoon evening if I felt cold. My monthly dual fuel direct debit based on current prices would have been £250 a month. This included using the tumble dryer approx six times a month.

Hope this helps.

The thing is, you aren't setting the heat to 20c - 20c is the temperature you are maintaining the house at.
A well insulated house is going to stay at that temperature with far less heating input than a draughty house, & the outside temperature will also vary & dictate how often/long the heating actually comes on for.
For example, at the moment I have the heating set to come on if the temperature goes below 19c (young baby in the house) & the last few weeks we've averaged around an hour a day of the heating actually being on in order to bring it back up to that temperature. In January I expect it will be far colder outside & we may be having the heating running for several hours a days to achieve the same effect.

What temperature do you currently hear your house to? How many hours do you have the heating on to do that? That will give you a starting point.

It's not going to be £100 a day.

PPs sharing their figures should help but there are so many variables, eg do you have electric or gas heating? Do you live in a 1 bed flat, 3 bed house, 64 bed mansion? No one can give you a ballpark that is independent of these things.

Turn off radiators in any unused rooms. I would suggest taking a meter reading every few days and keeping a record alongside rough outdoor temps. Over the next month you will get enough data to get a good handle on how much it's costing, though of course it will get more expensive as the weather gets colder. Info you gather from your own system will be much more useful than what Google alone can give you.

Last couple of weeks my house has been consistently 20 degrees during the day and drops no lower than 18 at night, and that’s without actually putting the heating on at all. So based on today’s weather in London and assuming a well insulated terrace then it wouldn’t cost much, if anything, to keep it at 20 for all but 4 hours a day. Whether that’s relevant to you, no idea, there are a lot of variables!