I have a flat on the 9th floor of a block and suffer from intermittant low
water pressure.

I have an electric shower (8?kw) which therefore works ok at times, and is
cold at times. I suspect the feed is from a tank on the roof (10th floor)
and we suffer low pressure, esp. at peak times.

Would it make sense to pump hot water from the immersion heater to the
shower?

Thanks


John