"TonyK" wrote in message ...
Hi

Just looking for a guide, not actual calcs, from someone who can give an
authoratative "yes" or "no"...

Fitted a 330l pressurised cylinder (insulated) earlier this year and to date
has been left switched on all the time due to high demand for hot water
literally 24hrs a day. Now demand is dropping off dramatically and will only
be needed Fri-Sun so...

Should the cylinder be switched off Monday - Fri am allowing the water to

Sunday - Thursday. That way it will be hot for you on Friday and you
can use up what you've already heated on Sunday.

MBQ