Let me share the ugly truth: most HVAC failures occur because someone missed a step. Didn't calculate the load correctly. Used cheap equipment. Got wrong the insulation needs. We've personally fixed hundreds of these messes. And each time, we file away another insight. Like in 2017, when we decided on adding smart thermostats to each system. Why? Because Sarah, our lead tech, got tired of watching homeowners lose money on bad temperature control. Now clients save $500+ yearly. https://linktr.ee/productairheating