Alas! The political campaign season came to an end right before the cold weather set in. Just when you could have used some of that free hot air generated by the candidates to warm your house, it ...

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 ...

Solar heaters use energy from the sun to create heat. These heaters encompass a variety of products, such as solar hot water heaters, solar pool heaters and solar space heaters that can warm up small ...

Heating accounts for more than 30 percent of the energy used in the average home. Consider replacing or supplementing your heating system with solar or geothermal heating systems -- two old ...

Mother contributor Gary Reysaís Montana home has a shed (right) that collects and transfers heat to the house (left) through underground water pipes. The garage (middle) is heated by solar hot air ...

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 ...

Researchers in Malaysia designed a photovoltaic-thermal system that can be used in solar drying, space heating, rooftop systems, and off-grid thermal applications. It relies on a double-pass cooling ...