Air handlers are the heart of an HVAC system, moving the conditioned air through a building. Like a heart, they can generate a lot of noise while operating. Manufacturers, however, are taking steps to reduce that noise.

It was the summer of 2020 and Avon Old Farms School needed a new ventilation system.

Some savvy investors realize the greatest potential for helping the environment and getting a good return on investment comes from the HVAC industry.

The Gold award in the Ventilation category goes to the DC-5 HVLS Fans by Greenheck. Model DC-5 is a high volume, low speed (HVLS) ceiling fan that is ideal for providing year-round comfort in air circulation and destratification applications.

In the end, it's about airflow control. Unless your solution involves airflow and pressure measurement, you're guessing whether the repair worked.

Diverse examples show the importance of air movement and the creative ways in which contractors and manufacturers have dealt with it successfully.

By employing a ventilation strategy such as a DOAS, conditioned fresh air can be brought into the building, thus improving IAQ and ensuring a safer environment.

Failed ventilation itself has many more risks that owners and operators are less practiced at accounting for, but should no longer be left off the list.

The "magic number" 1.08 is convenience factor. It is a bunch of math combined into one factor as a shortcut, although sometimes more precise calculation is better.

While some contractors fabricate sheet metal in-house and others outsource that work, both groups can benefit from a few best practices.