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For the second year in a row, CEOs took questions directly from the contractor audience of ACCA’s annual conference. 

Within the HVAC universe, pure-play manufacturers have led the market since January 2012 with a cumulative return of 173 percent. Diversified HVAC manufacturers and HVAC service and distribution stocks have also performed well, gaining 67 percent and 62 percent, respectively.

This year, 2,465 manufacturers participated in the event as 198,000 visitors flocked to see the latest trends and technical innovations.

The NEWS' annual issue has traditionally introduced the latest air conditioning units available for the upcoming summer season. The intent is to help contractors prepare for this busy period by doing the research that will help them to distinguish between brands.

A growing number of building owners are looking to design buildings that produce as much energy as they consume each year. These so-called zero-net-energy (ZNE) buildings may sound like a pipe dream, but they’ve already become a reality in many parts of the U.S. and around the world.

The demand for HVAC equipment in the U.S. is forecast to increase 6.8 percent annually through 2019 to $20.4 billion, recording gains at about twice the rate of the 2009-2014 period, according to a new study released in March by The Freedonia Group. 

In medium- and low-temperature refrigeration applications, 1 hp is hardly ever equal to 1 ton of refrigeration. Let’s review a few principles to illustrate this point.

A refrigeration system can be a major draw on electrical energy, so it can be a real benefit when a technician also can make sure the system is operating efficiently. 

These larger refrigeration systems present tremendous opportunities for energy-efficiency improvements that can lead to significant operational savings.

The town of Biddeford, Maine, is home to Jim Godbout Plumbing, Heating, and Air Conditioning, a diverse enterprise that tends to cater to high-end residential contracting.