In article .uk,
Ed Sirett wrote:
Thought it had to be the 'fumes' from stagnant water kept at a highish
temp and breathed in a confined space? Like from water cooled air con?

My understanding is that you need a body of warm water standing around
exposed to air.

Mine too.

Condensing boilers have only a little amount of water in
the trap, which is mildly acidic and anything which comes in from
outside is going to get zapped in the burner.

Plus presumably on a hot day with the boiler not in use it would soon
evaporate away anyway?

--
*If Barbie is so popular, why do you have to buy her friends? *

Dave Plowman London SW
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