Why Does the Best HVAC Salesman Know the Least About Airflow?
Mechanical Philosophy Why Does the Best HVAC Salesman Know the Least About Airflow? The “Interface Tax” of home services and why we confuse etiquette with engineering. I once paid four thousand dollars extra for a roof because the salesman brought his own folding stool to sit at my kitchen table. It sounds ridiculous now, reading …
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