newshound wrote:
On 14/11/2020 20:14, Tim+ wrote:
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 youre taking the calibrated scale of a thermometer as an indication of
typical CH water temperatures?

Tim

Boiling point of water at 3 bar is about 134 deg C. IIRC boiler gauges
typically go to 3 bar, presumably relief valves are slightly less.


So youre taking the relief pressure valve setting in boilers as an
indication of typical CH water temperature?

Tim

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