Here is the motor drive for the parabolic solar heater on the bench while I was running the yoke from one end to the other using the small D...

Aiming the entire solar heater array toward the sun is done with one very small and low current 12 volt DC (direct current) gear motor (moun...

The DIY concentrating parabolic solar heater uses copper or stainless steel pipe for the collector tubes. A metal is preferred for the coll...