One question at a time please & once the person asking the question is happy with the answer they'll say "next question please" & anyone can chime in with the next question. (fun, fun, fun!)
I turn mine off . There is no such thing as "off peak" its a misnomer . I worked for the electricity board up here .
When you turn them back on they will heat up other wise how could a lecky check they work .
Bernie .
Bernie it has been known to break the lead seal & flick the unit on to heat immediately.
Must be a SA thing perhaps?
We had two meters........ one for hot water & one for the rest.
The hot water one is via a time clock & is cheaper power.
******************* BruceS
Mannum, SA
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Tariff 33 here Bruce for the hot water if you have a 200lt tank and separate meter .
But no seal , just turn it off and on and it will auto start here .
But you do live in SA so maybe different .
Bernie .