This is the ugly truth: nearly all HVAC failures happen because someone ignored a step. Didn't calculate the load accurately. Used undersized equipment. Misjudged the insulation needs. We've fixed countless of these disasters. And every time, we file away another learning. Like in 2017, when we started adding smart thermostats to each install. Why? Because Sarah, our senior tech, got sick of watching homeowners waste money on inefficient temperature settings. Now clients save hundreds yearly. https://openlibrary.org/people/productairheating/lists/OL317070L/Product_Air_Heating