Parabolic Solar Trough Mirror Kit Evacuated Solar Tube
www.youtube.com This is the trough in action. WHAT IS A TROUGH: www.youtube.com WHAT IS AN EVACUATED SOLAR TUBE: www.youtube.com
DIY SOLAR TUBES EVACUATED VACUUM TUBE SOLAR HOT WATER Boil water with the power of the SUN
Boil water just by placing it in the sun. www.greenpowerscience.com This is a simple process to make your owns solar evacuated vacuum tubes from any bottle and a vase from Walmart.
