Hello
First post in here so thanks in advance for any help and apologies for my lack of technical knowledge!
Ive recently completed a a small (3m x5m) Garden Studio/cabin in West Wales. And am looking for advice on the best way to heat water for an outdoor shower and a kitchenette sink. I've connected to my house electricity supply with a 10mm 2 core Armoured cable alongside a pipe bring mains water. Its about 40 mars from the house. I've been told the cable should be good for about 10kw total power. I initially thought I would use an camping style instant hot water heater from a propane bottle that could also feed a small gas hob but as I'm connected to the mains. Id like to explore electric options. Im thinking too of installing a small (3/4 panels) solar PV system on the roof(east facing) at some point too.
Ive looked at under 10kw instantaneous electric water heaters but am worried about water flow as id like a good shower flow. Ive also looked at electric storage heaters but space is at premium so ideally id have something that would fit under a kitchenette unit. Lots of consideration and pros and cons but would love to here people thoughts on what would be the best solution both economically and in terms of a decent, reliable hot water supply for both the shower and sink.
1) would multipoint instantaneous work or the capacity for a shower not that great?
2) would storage heater be a better options and if so 50ltr enough?
3) Am I better to go propane camping style instantaneous heater and save my electric capacity for other things like, lighting, kettle small fridge etc.
4) Any thoughts on decent brands/modals for any of the above?
Thanks so much in dance for any thoughts.