Here's the ugly truth: nearly all HVAC failures occur because someone ignored a step. Did not calculate the load correctly. Used cheap equipment. Miscalculated the insulation needs. We've personally fixed dozens of these failures. And each and every time, we record another learning. Like in 2017, when we started adding WiFi controls to each system. Why? Because Sarah, our senior tech, got tired of watching homeowners waste money on poor temperature settings. Now clients save 20-30% yearly. https://replit.com/@productair