Let me share the brutal truth: the majority of HVAC failures take place because someone ignored a step. Did not calculate the load properly. Used cheap equipment. Got wrong the insulation needs. We've personally fixed countless of these disasters. And each and every time, we remember another learning. Like in 2017, when we decided on adding WiFi controls to all installation. Why? Because Sarah, our lead tech, got sick of watching homeowners lose money on poor temperature settings. Now clients save 20-30% yearly.
 
https://zanelktc526.yousher.com/king-county-heat-pump-rebates-what-certified-installers-do-differently