Start with the actual collector.
Copper pipe solar pool heater.
It is not just a black plastic or rubber garden hose.
However copper pipes can pit scale or corrode and is not as well insulated as pvc or cpvc and condensate forms easily on the outside of the pipe.
There are only a few important parts.
Comparing the performance of two diy solar water heating collectors cpvc vs copper sometime back i had a brief go at a solar water heating collector made from cpvc with aluminum fins.
Either coil the copper pipe or lay the pvc pipe back and forth on the plywood.
Copper pipes and fittings pressure and temperature rating.
Copper is biostatic naturally killing bacteria.
Pressure and temperature ratings of copper pipes welded fittings type k l m are much higher than 80 psi and 250 f.
Mount them to the board using either adhesive or pipe mounts.
Sun ray solar panels are heat exchangers specifically engineered to absorb solar energy.
We don t recommend using compression fittings with rubber joints in solar application since it contains plastic that cannot sustain high temperatures.
At the time it seemed interesting but not as good as some of the other options for building collectors.
A solar assisted pool heater is very easy to construct and use.
Sun ray s metallic pool panels are superior in heat conductivity heat transfer and durability.
Copper pipe and fittings are around 10x more expensive than pvc.