HVAC is commonly known as the heating and air conditioning trade. Those who call it a profession refer to themselves as comfort specialists. They sell HVAC systems with slogans such as, "Comfort, that is what we do best," or "You're always comfortable with us." Unfortunately, one thing both of these slogans omit is an integral element to a complete understanding of a proper HVAC system: ventilation. We focus all our efforts on delivering on the comfort guarantee and completely forget good IAQ is part of our job. This lack of representation is also found in most HVAC technician education and residential state licensing exams. Gone are the days of just providing heating and cooling. In order to stay in the comfort business, we must learn ever-changing building materials, code changes, and code program standards that include the installation of ventilation in homes that used to breathe on their own.
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