On Mon, 6 Sep 2004 12:45:39 +0100, "TonyK"
wrote:

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
cool and reheat from what I asume would be almost cold on Friday pm. Or, is
it more energy efficient to leave it on and let the thormostat regulate
power consumption to keep it up to temp throughout the week?

Any ideas...

Tony


It would really depend on how much insulation, Tony.

If you were using the system say 18 hours out of 24 every day, I would
say leave it on - it's what I do.

However, for 2 days out of 7 I would switch it off.



..andy

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