Many HVAC professionals are familiar with the use of open filter racks. Open filter racks are often installed to allow for easy filter access by exposing an inch or so of the filter. The problem with ...

Measure and calculate the proper size and then verify the design It’s often taught that diagnosing a restrictive air filter is as simple as a visual inspection to see if it’s plugged. And, if the ...

Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...