How HVAC Coils Work and Why Cleaning Them (and That Drain Pan!) Matters
What Are HVAC Coils, Anyway? Inside every hardworking AC system, you got two coils doing the heavy lifting: the evaporator coil and the condenser coil. One lives inside (usually in the air handler), and the other lives outside in the condenser unit. The evaporator coil cools the warm air from your home by absorbing heat. …
