Derek Cole explains why modern energy-efficient HVAC systems need regular cleaning and maintenance. Dirt and debris damage sensitive equipment faster, and rising power bills or visible grass buildup on coils are warning signs you need service.
About 25–30 years ago.
You want to keep protecting your investment by having it serviced and maintained and cleaned, because the systems of today are not like the systems 25, 30 years ago that could withstand that kind of buildup. Efficiency was not a big concern 25, 30 years ago. Ones today are a lot tighter, more energy efficient. So any little bit of dirt, dust, debris can affect the efficiency. But if you see your power bill start creeping up, that's kind of a good indication as well as just walk outside and look at your unit. I mean, if you got grass clippings all on the coil and everything, it's not operating efficiently because it's having to overcome that dirt and debris to transfer the heat, and that is costing you more money.
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