How do I convert gas in CuFt to KWh

[paul10june]

Question 1: I have a UK 6 digit meter showing consumption in cubic feet. Does anybody know what the fist 4 digits show - is it 100's of cubic feet, or single units - or some other?

Question 2:
Assuming average calorific values - does anybody know how to convert cubic feet into KWh

Thanks

[buildersmate]

It varies slightly according to region. You will find it written on your bill somewhere, but 100 cubic feet is approximately 30kWh.

[paul10june]

Thats great - thanks. Can you enlighten me on the meter reading part of the question?

Paul

[buildersmate]

Don't have gas any more so can't check. One Unit in gas bill terms is 100 cubic feet. The meter in the old house had 4 digits not 6 - that's why I didn't answer that bit of the question. If you've got gas CH you're going to be using 700-1000 units per year. Surely that enables you to work out where the decimal point lies in the cubic feet readings.

[dilligaf]

Our supplier and apparently others use the following calculation:
hcf of gas units used ..................... ?
to convert to cubic metres................. x 2.83
multiply by conversion factor ........... .x 1.02264
multiply by calorific value....................x 39.3
convert into kilowatt-hours.......divide by 3.6
Result gives kWh used.

It does work if you have the patience to work it out.

[buildersmate]

Hmm
(2.83 x 1.02264 x 39.3)/3.6 = 31.5936106

I prefer an easy life. Stick with 'approximately 30'.