Here's the brutal truth: nearly all HVAC failures happen because someone ignored a step. Failed to calculate the load accurately. Used undersized equipment. Miscalculated the insulation needs. We've fixed dozens of these failures. And every time, we file away another lesson. Like in 2017, when we started adding smart thermostats to each install. Why? Because Sarah, our senior tech, got tired of watching homeowners waste money on bad temperature settings. Now clients save $500+ yearly. https://productairheating.wixsite.com/productairheating