On 05/05/2019 20:38, Jim K.. wrote:
GB Wrote in message:
On 05/05/2019 14:57, Jim K.. wrote:

Indeed. More plumbing needed with the storage one, costs more to
buy & run... I'll start with the sprinkler & see how it
goes.
Cheers



In Germany, they have massive instant hot water heaters. For example,
this shop stocks heaters up to 27kW, run off a three phase supply.

https://www.bauhaus.info/durchlaufer...334%3A21%5C+kW

"Useful many thanks"
:-\



I think it's a bit interesting, as it allows plentiful instant hot
water, but without the snag you noted of heat losses from stored hot water.