Really simple solar hot water heater for Hot Tub
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- Опубліковано 9 вер 2024
- Simplest possible solar hot water heater to heat my old inflatable hot tub.
The pump is a mains powered 10W submersible pump costing £11. I tried a 3.5W solar panel powered pump but it wasn't powerful enough.
To do next: add another hose. Paint the hose and the wooden palette black.
where is the solar panel ?
There isn't one. The sun heats the water in the pipe