On 14/02/15 21:00, Roger Mills wrote:
On 14/02/2015 18:20, charles wrote:


my logic was that removing power to the system, which includes the pump,
could result in overheating of the boiler and a consequent shut down, so
that when power was restored the boiler wouldn't restart. This could,
if I
wasn't at home, result in expensive call out charges.


You'd better make sure that you never have a power cut then!

If a low water content boiler, set at its maximum flow temperature, is
running balls-out when the power goes off, the over-temperature trip
might pop: but anyone who is competent to arrange an expensive call-out
could also be trained to press the tit to reset it.

__

Kevin