Thread: Ever wondered why your gas bill is so high?
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Andy Wade Andy Wade is offline
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Default Ever wondered why your gas bill is so high?
wrote:

[...] with the calorific value, which is variable (by up to 15%

15%? My record of gas bills going back to 1991 shows a lowest CV of
38.1 MJ/m^3 and a highest of 39.6. That's a spread of just under 4%.

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Andy
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