michael adams wrote:

"Tim+" wrote in message
...
michael adams wrote:


It appears its not the actual contact but the heat being radiated (?) by
pipes potentially being up to 120C over prolonged periods which may cause
the problem

So you're taking the calibrated scale of a thermometer as an indication of
typical CH water temperatures?

Er, no ? As I said above, it's the pipes themselves which are 120C,

Not in a typical domestic CH system.

Tim

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