What is HVAC? HVAC, an acronym for Heating, Ventilation, and Air Conditioning, refers to the systems that regulate indoor environmental comfort. These systems are typically designed together because their functions are interrelated. For instance, after air is heated or cooled to the desired temperature, the ventilation system distributes it throughout https://www.ny-engineers.com/mep-engineering-services/mechanical-hvac-design-services/hvac