What we did
On a follow-up visit to this Lancaster home, we replaced two air filters. The system uses two different sizes, a 16x20x1 and a 20x20x1, so we swapped both to keep everything on the same schedule.
While we were there, we also provided a quote for cleaning the evaporator coil. The coil is where the system pulls heat and moisture out of the air, and keeping it clean is part of helping the HVAC system run efficiently. The quote gives the homeowner a clear picture of that work so they can decide when to move forward.
Homes with more than one filter location are easy to fall behind on, because one filter gets changed and the other gets forgotten. Replacing both sizes together keeps airflow consistent across the system. A clean filter also protects the coil, which ties directly into the coil cleaning we quoted. With humid summers and plenty of pollen in central Kentucky, filters and coils both take on a lot over the course of a year. Small maintenance steps like these help a system keep doing its job without asking it to work harder than necessary.
