Can anyone tell me how to calculate how many cubic metres of gas/hour my 98k btu/hr max 40.6k btu/hr min boiler should use approx. The reason I ask is that after Brit Gas have installed a new meter our daily avge usage has doubled from 3.5 to 8 cubic metres/day & we are not using anything longer than we did before. I am trying to decide whether I am now paying too much or was not paying enough before. Many thanks.
Running costs for ch boiler
- Thread starter jj4091
- Start date
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If your boiler is running at full power and is 30 kW then it costs about £1.15 per hour to run for hot water for example.
Heating about 50p/hour.
Tony
PS I made a few assumptions which may be a little out in any particular case. I assumed it was 30 kW input power which is typical for a 30 kW boiler delivering hot water with an actual output power of 27 kW average.
Also a gas price on 3.8 p/kW with a seperate standing charge. Depending on your actual tarriff it may be a lot more perhaps up to 8p if you have a card meter!
Heating about 50p/hour.
Tony
PS I made a few assumptions which may be a little out in any particular case. I assumed it was 30 kW input power which is typical for a 30 kW boiler delivering hot water with an actual output power of 27 kW average.
Also a gas price on 3.8 p/kW with a seperate standing charge. Depending on your actual tarriff it may be a lot more perhaps up to 8p if you have a card meter!
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