Should I keep water heating on all day?

AJAM said:

Those older copper tanks with the green factory foam aren't actually great for insulation.
Wrap an old duvet around it. It saved me roughly 0.5 KWh a day.

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lff12 said:

I had an uninsulated copper tank in a previous rental, put a 30 quid bag on it and literally had hot water for 2 days. Will probably do same for this one.

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Harvard said:

What exactly do you mean by a 30 quid bag? Lagging jacket?

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lff12 said:

Yes - not sure why I said bag. The red ones you get in woodies - basically rockwool in a plastic bag.

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