A passive solar-heated home needs no solar panels to heat or cool it. Rather, the energy used to heat and cool a house comes directly from the sun through skylights and windows. Some of that energy is ...

Q. I like to read all the “home” magazines I see in the stores, and there’s no doubt that energy-efficient “green” houses are the big thing these days. We’re planning to build a new home soon since we ...

Since ancient times, people have found ways to use the sun’s heat to stay warm or keep cool. They built homes from clay and other materials that hold heat well, and they placed them in ways that ...