This is the ugly truth: most HVAC failures happen because someone skipped a step. Didn't calculate the load accurately. Used undersized equipment. Misjudged the insulation needs. We've personally fixed countless of these disasters. And each time, we record another insight. Like in 2017, when we decided on adding WiFi controls to all installation. Why? Because Sarah, our master tech, got sick of watching homeowners lose money on poor temperature management. Now clients save 20-30% yearly. https://www.salesforce.com/trailblazer/productairheating