In article ,
Martin Angove wrote:
This is the point where someone either tells me it's been done and is
available or tells me that there is no need to ditch the bimetal
thermostat because...

Can't really see any benefit. With a well lagged tank I don't think you'd
separate the top third from the full tank for the time scale involved. And
my boiler cuts in before the hot water is exhausted anyway.

--
*Consciousness: That annoying time between naps.

Dave Plowman London SW 12
RIP Acorn