Q. I feel the sun shining in a living room window and it's very warm. My budget is pretty tight, but I want to make or install something to capture that heat and lower my heating bills. What do you ...

Switch to solar with a system built for you. 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 ...

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 ...