U.S. solar thermal panel manufacturer Fafco has developed a photovoltaic-thermal heat pump solution for water and pool heating. “The solution utilizes an open-loop solar drain-back style system that ...

The system takes water from near the bottom of a solar heat storage tank and pumps it through a collector — where it’s heated by the sun — and then back to the tank. This continues as long as there’s ...

It took a while to decode the email I received from Carroll Hampleman (you can see why below), but his home made water heater is worth the bother. Mirrors are arranged to reflect and concentrate the ...

Retired mechanic Jose Alano invented a simple, cheap, energy saving rooftop solar water heater which is benefiting thousands of people. Here's how it's done... José Alano is a model of creativity in ...