For a limited time, take $100 off the registration fee for these courses.

The 2016 AHR Expo was held from Jan. 30-Feb.2, at the Orange County Convention Center in Orlando.

Plumbing & Mechanical columnist John Siegenthaler’s new book, “Heating with Renewable Energy,” is a 850-page, full-color text.

For the first time in the competition’s history, the 16 Solar Decathlon 2017 teams will be competing for $2 million in prize money.

The 2015 International Solar Energy Provisions and Commentary is a comprehensive resource to address the needs of the solar energy industry.

Plumbing & Mechanical columnist John Siegenthaler has written a new book, “Heating with Renewable Energy.”

The code now has solar, hydronic and geothermal provisions.

The code now has solar, hydronic and geothermal provisions.

The Greenfire Campus in Seattle, a mixed-use commercial and residential development, uses water-to-water heat pumps, radiant heating, chilled beams and heat recovery ventilation in its energy-efficient design.