We also installed roof jacks (to hold up the solar array) and then a new composite shingle roof. Finally, in July, we put in a whole-house cooling fan and whole-house heat-recirculating system (as ...

If you're building or renovating, passive solar design can make your house easier to keep comfortable. Our panel of experts tells you more.

“The solution utilizes an open-loop solar drain-back style system that is coupled to ... “Initially our sales will focus on new home construction, heating, ventilation, and air conditioning ...

Energy-efficiency and clean energy projects like insulation, solar, and heat pumps can bring you thousands in federal and ...

German heating specialist Vaillant and the Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) have presented a new heat pump concept at the ISH Frankfurt trade fair this week. “The ...