Here's the brutal truth: nearly all HVAC failures take place because someone ignored a step. Did not calculate the load accurately. Used undersized equipment. Misjudged the insulation needs. We have fixed dozens of these disasters. And every time, we remember another learning. Like in 2017, when we decided on adding smart thermostats to every installation. Why? Because Sarah, our lead tech, got sick of watching homeowners lose money on inefficient temperature settings. Now clients save hundreds yearly. https://500px.com/p/productairheating