Skip to main content
9 events
when toggle format what by license comment
Nov 6, 2013 at 15:38 comment added Johnny No, sorry, I meant that even if you had a 100% efficient boiler (which doesn't exist), it would cost around £1.32/hour to run. If you had a 90% efficient A rated boiler, that would cost around £1.45/hour. This is assuming that your current boiler really is running at its rated 75% efficiency, but it might not be....it might be running below that level if it needs maintenance. So probably the first thing to do would be to have a repairman look at your existing boiler to see if it's running properly.
Nov 6, 2013 at 12:13 answer added RedGrittyBrick timeline score: 0
Nov 6, 2013 at 9:54 history tweeted twitter.com/#!/StackDIY/status/398025666207420417
Nov 6, 2013 at 8:54 comment added Paul Fleming @Johnny Thanks for your comments but I don't understand your numbers. You say the E rated (at £1.32/hour) is cheaper than the A rated (at £1.45/hour)?
Nov 6, 2013 at 2:11 comment added Johnny If your E rated boiler is running properly and is running at 75% efficiency, then you're losing 25% of the energy. So, even if you had a theoretical 100% efficiency burner, you'd be looking at about £1.32/hour to run it. A 90% A rated boiler should use about £1.45/hour. First thing I'd do is have someone come in to check to see if the boiler is running properly. You can find an explanation of the efficiency bands here
Nov 5, 2013 at 19:35 answer added Vitaliy timeline score: 1
Nov 5, 2013 at 18:31 review First posts
Nov 5, 2013 at 18:58
Nov 5, 2013 at 18:16 history edited Tester101 CC BY-SA 3.0
edited title
Nov 5, 2013 at 18:11 history asked Paul Fleming CC BY-SA 3.0