On 08/10/2019 22:10, Gareth's was W7 now W10 Downstairs Computer wrote:



I'd be surprised if it is a thermocouple rather than one of those
devices where a liquid is vapourised because there is no electrical
supply to the gas fire other than the 1.5V cell used for the igniter;
the few mV from a thermocouple being IMHO too feeble to operate
a mechanical valve.

Thermocouples were used extensively on older boilers that had a
permanent pilot light. They held the gas valve on!

Modern boilers don't have pilot lights

see page 25. para 3.2.3 of the manual for your fire

https://www.flavelfires.co.uk/media/...uctions_55.pdf

Where it states that the pilot light heats up a thermocouple.

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