If you enjoy being nice to the environment (or if you're just looking to save a few bucks), building a solar heater is a useful weekend project that costs very little, but can heat a good portion of ...

This home is heated by a wood stove in the winter, which also produces hot water. But the other three seasons it’s an electric water heater that does the work. This latest hack is a solar collector ...

The sun’s energy can be captured by homemade solar hot-air collectors and thermosiphoning panels to provide free heat. The units direct air warmed by the sun through a window or wall opening into the ...