HVAC Certification | Programs & Requirements 2023 - Universities.com
https://www.universities.com:443/trade-schools/hvac-certification
WEBOct 25, 2022 · Heating, ventilation, air conditioning, and refrigeration — aka HVAC, or sometimes written as HVAC-R — has long been a vital trade. HVAC technicians install, maintain, and repair the climate control used in our homes, workplaces, schools, stores, and pretty much all other modern buildings.
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