All radiators either on or off

[willdonal]

The amount of information that has built up on this forum over the past 4 years (in my case) is amazing. I have just found this snippet from Rameses:

@ 20c - legionella survive but dormant
@ 35-46c - legionella Perfect growth conditions
@ 50-54c - legionella lives but cannot multiply
@ 55c legionella dies within 5-6 hours
@ 60c legionella dies within 32 mins
@ 65c Legionella dies within 2 mins

I think that the OP can be certain that his cylinder does not have Legionella.

Certainly not at the temperature mine is at

[HenGus]

This link might be helpful if you are looking for a company that understands smart heating controls.

http://www.ecotechnicians.co.uk/core/find-an-ecotechnician/

[willdonal]

This link might be helpful if you are looking for a company that understands smart heating controls.

http://www.ecotechnicians.co.uk/core...ecotechnician/

Thanks Hengus, I'll bear them in mind. Cheers