Cleaning the coils on rooftop units may seem mundane, but it’s an important job that pays off for your customers in more efficient operation and longer living equipment. And, any job that’s worth ...

David Yuill received funding from the American Society of Heating, Refrigerating, and Air-conditioning Engineers to conduct this study, under Research Project 1705. He is affiliated with ASHRAE. I ...

We may earn revenue from the products available on this page and participate in affiliate programs. Learn More › During the hottest days of the year, it’s likely that you rely heavily on an air ...