The Problem Index → Power
I want hot water without electricity
There's a famous answer and a boring answer. The famous one genuinely works and the videos leave out the part that decides whether you can do it.
What actually works
◇ Plausible
The Jean Pain compost heater
Domestic hot water off a compost mound for 12–18 months. The original was 50 tons of chips built with a crew — mass is the entire mechanism.
Free chips, plus a chipper, a tractor, and a weekend of help◆ Proven
A batch solar water heater
The boring answer: a black tank in a glazed insulated box. Cheap, reliable, no moving parts. Must be drained or protected against freezing.
Also searched as
off grid hot water · compost water heater · jean pain · solar hot water · heat water no power · wood fired water heater