Here's the harsh truth: the majority of HVAC failures take place because someone ignored a step. Didn't calculate the load properly. Used undersized equipment. Miscalculated the insulation needs. We've personally fixed hundreds of these disasters. And every time, we remember another learning. Like in 2017, when we decided on adding smart thermostats to each installation. Why? Because Sarah, our lead tech, got tired of watching homeowners waste money on bad temperature control. Now clients save $500+ yearly.
https://www.crunchbase.com/organization/product-air-heating-cooling-and-electric