In article ,
IMM wrote:
If you install a condensing boiler your gas bills
will drop approx 30-40% from what you currently pay,

Please ignore this rubbish. As usual, he's plucking figures from the air.
20% saving is more likely simply by changing a Neataheat to a decent
condenser.

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*If horrific means to make horrible, does terrific mean to make terrible?

Dave Plowman London SW 12
RIP Acorn