What kiloWatt to buy and why

what is the difference between getting a 8.5kW, 9.5kW or 10.5kW shower?
Asked 8 years ago by Irena
The temperature and flow rate are always (Nearly always!! and always in your type of shower) connected.

When you turn your shower on you have a 7.5kw, 8.5kw, 9.5kw or 10.5kw element heating the water and this does not vary. The way you alter the temperature is by varying the amount of water that passes over the element, pass the water over the element slowly (a little water) and it gets very hot, pass it over quickly (a high flow rate) and it doesn’t have time to pick up much heat.
So the higher the kilowatt of the shower the more flow you may expect to get.

This explains why in the winter at the same setting as the summer the shower is not so hot because the temperature of the incoming water has changed.

Answered 8 years ago by Anonymous

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