> More powerful models are more common in the southern (colder) states.
>
> >From central to northern Brazil the water is rarely "cold", all it takes
> is a little raise in temperature.
> Southern states need a lot more heating.
>  =20
Here in the UK the norm is for electric showers to be arround 7-10KW and
wall mounted (with a hose to the shower head) , I guess because our cold
water can be rather cold.
--=20
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