Quote:
Originally Posted by Ima saver
If you have an electric hot water heater, you can keep it turned off. Only turn it back on about 20 minutes before taking a shower or washing dishes.
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I thought that if you keep the electric hot water heater turned on constantly you actually save on your electricity bill. The reasoning behind that was that if it turns on 5 times a day and just adds 5 degrees C to the water temperature inside, before it reaches the target temperature of say 60 Deg C, then the total work done (electricity spent) is for adding 25 degs.
On the other hand heating the whole boiler from 20 Deg to 60 deg once before you take a shower every evening /morning is for adding 40 degrees to the water.