storage heater question

14 Aug 2007
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United Kingdom
Just bought a 30 year old flat off a pensioner which has economy 7. The meter, right enough, has a reading for normal and offpeak. How do the two storage heaters know when to kick in to store heat? - there are only two dials on the storage heaters, one for room temperature and one for number of hours charged. There is no timer.

what I am wanting to understand is if I have a new dishwasher/washer dryer with a delay timer can i set these to go on the economy 7 tariff? Are storage heaters on a different circuit or something? If I set the dishwasher to go at 3am will it automatically go on the low part of the meter. Or does it need to be put on a special circuit? Or will it just go on the normal meter. I don't want that.

I guess what would be best is if the whole property switches to the economy 7 circuit at whatever time that is - say 12:30am Then anything which runs at that time is economy 7.

any advice is appreciated.
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There should be a teleswitch at the intake position.

It is a rectangular unit wired into the supply which switches over at preset times to low rate electricity. The storage heaters switch on automatically when this timeswitch kicks in, heating up overnight. The input control on the heater controls how much heat is stored.

The output control conversely controls how quickly heat is allowed to escape during the day.
If you are on E7, all the circuits in the flat will be on cheap rate after 12:30 (assuming that is your changeover time).

Be aware that some areas go back to high rate after 2 hours and then back to cheap 2 hours after that, generally a 22:30 changeover though.

Not all installations have a separate teleswitch, newer meters can have it built in so it is not always obvious

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