In article , Imm wrote:
I find that ridiculous. Long flue lengths act against a condenser.
Regular and condensers both can have very long flues. Long flue
length should not act against a condensing boiler at all.

But the appraisal form is about considering how reasonable it is to
install a condensing boiler, and the notes do say that even if the
points score means that you don't have to install one it may still
be a good idea to do so.

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Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk
Free SEDBUK boiler database browser http://www.sda.co.uk/qsedbuk.htm