“ This is the harsh truth: nearly all HVAC failures happen because someone missed a step. Didn't calculate the load properly. Used cheap equipment. Miscalculated the insulation needs. We've personally fixed hundreds of these disasters. And each and every time, we file away another insight. Like in 2017, when we started adding WiFi controls to each installation. Why? Because Sarah, our senior tech, got sick of watching homeowners burn money on bad temperature control. Now clients save hundreds yearly.
https://openlibrary.org/people/productairheating/lists/OL317070L/Product_Air_Heating ”