The rise of cost-effective geothermal systems

Since the first caveman built a fire inside to warm his living space, humans have been harnessing the power of Mother Nature to heat and cool a home. Now, geothermal energy, a modern technology that uses the earth’s thermal properties in conjunction with electricity, is poised to become more widespread as an eco-friendly way to maintain comfortable indoor temperatures.

Geothermal heat pump systems have been growing in use since first being deployed successfully in the 1970s, and their popularity shows no signs of slowing down: A 2013 global analysis by Navigant Research predicts the geothermal market will grow by more than 150% by 2020.

And for good reason. Geothermal energy is a renewable resource that is a solid alternative to conventional energy sources. An Idaho National Laboratory 2006 report, titled “The Future of Geothermal Energy,” states that “many attributes of geothermal energy, namely its widespread distribution, base-load dispatchability without storage, small footprint and low emissions, are desirable for reaching a sustainable energy future for the United States.” Download the report at

The technology reduces greenhouse gas emissions by as much as 40% more than traditional HVAC systems, according to the U.S. Environmental Protection Agency, and offers considerable water Continue reading


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Coffee with Caleffi: Rohr revisits solar thermal

Bob “Hot Rod” Rohr, Caleffi training and education manager, takes a look at solar thermal systems, revisiting the latest in step-by-step system design so that the audience can be certain of a top-notch system. Rohr’s webinar is scheduled for August 25 at 12:00 p.m. CDT during the monthly webinar series, Coffee with Caleffi.

Rohr will uncover sweet-spot jobs and opportunities, as well as refresh the audience with the latest incentive programs. 

For more than 30 years, Rohr has installed plumbing, radiant heat and renewable energy jobs. The one-hour educational webinars are free and are intended for contractors, designers and wholesalers. Visit for schedule details and registration.

Source: PM Magazine Solar Thermal