Heating, ventilation, and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics and heat transfer.
The growing demand for HVAC replacements in developed countries will drive the growth prospects for the global HVAC services market until the end of 2021. The market is witnessing a huge shift towards the reduction of operating costs, increasing energy efficiency, and utilizing the favorable government incentives to replace existing heating, ventilation, and air conditioning (HVAC) equipment in various countries such as the US, the UK, Germany, and Japan. Also, the regulations about the use of refrigerants
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