DIY Solar Water Heater! - Deluxe “Aluminum backed“ COPPER COIL Solar Water Heater! 175F Full Instr.

Deluxe DIY Solar Water Heater! Solar Thermal “Aluminum backed“ COPPER COIL Water Heater! Easy DIY w/Full Instructions. Super Hot water, super fast. reached 125F in 5 minutes ...and near 175F after about 15. no soldering required! uses just one coil of 3/8“ copper tubing (amazon $23) and push-to-fit connectors. only tools used were screwdriver, hammer, tin snips (or scissors), hack saw and a drill. great for use as a stand alone unit or can be hooked into home’s plumbing as supplemental heating for water heater. notes: using the aluminum backing adds roughly 10F to the water (but is optional). system is relatively lightweight and is easy to move and store *and the design allows for multiple units to be easy connected together (if a larger system is desired). details: outer board 1/2“ plywood 23.7“ x 23.7“ (sold that way - no cutting required). inner board 1/4“ plywood 19 3/4“ x 19 3/4“. glass 20“x20“ (or use Plexi-Glas).4 3/8“ Squ