Filters were originally conceived to protect heating and cooling equipment, for example to prevent large particles from clogging the air passages of coils. The old, familiar fiberglass filters do a ...

Furnace filters designed to act as whole-house air filters add stress to the blower in an HVAC system by impeding airflow. Two design adjustments at installation can resolve this issue and potentially ...

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 ...