Let me share the harsh truth: nearly all HVAC failures take place because someone ignored a step. Didn't calculate the load properly. Used undersized equipment. Got wrong the insulation needs. We've fixed dozens of these disasters. And every time, we file away another insight. Like in 2017, when we decided on adding smart thermostats to all system. Why? Because Sarah, our senior tech, got sick of watching homeowners burn money on bad temperature control. Now clients save $500+ yearly.
https://community.cisco.com/t5/user/viewprofilepage/user-id/1951244

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