“In the 1960s, constant-volume reheat systems were considered luxurious. Over time, more and more variable-air volume systems emerged. Even further down the line, zoning, variable-speed compressors, electronically commutated motors, and more have elevated the HVAC industry’s energy awareness.
That concerted energy-saving effort is not only paying off for customers, but for contractors as well.
A few years ago, customers weren’t as conscious, or really concerned for that matter, about energy-efficient heating and air systems, said Shawn Montague, president, Breezin HVAC Inc., Staten Island, N.Y. ”