In article ,
RedOnRed wrote:
Before you embark on a load of misleading figures. The efficiency of a
25 year old boiler is likely to be around 55% efficient. Like the one I
just got shot of.

It really depends on the type of 25 year old boiler. In 1980 there were
plenty that bettered that and by quite some margin.

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*I'm pretty sure that sex is better than logic, but I can't prove it.

Dave Plowman London SW
To e-mail, change noise into sound.