Heating, Ventilation, and Air conditioning (HVAC) are the science of vehicular and indoor environmental comfort. The intent is to offer acceptable indoor air quality and thermal comfort. HVAC services are provided by a licensed HVAC contractor who must be an accredited member in HVAC today. HVAC is the science of heating, ventilating, and air-conditioning systems for commercial, institutional, and residential buildings. All the equipment in HVACs has been designed to work together efficiently, including pumps, air conditioners, and heat and air sources.
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There are five different phases of HVAC systems, namely, conditioning, heating, ventilation, extraction, and combustion. The various techniques include electrical, mechanical ventilation, chemical ventilation, and mechanical condensation removal. HVAC uses energy to move air and takes advantage of natural ventilation. Heat generated in the atmosphere can be used to warm buildings while cold air from the ground can be used for dehumidification. This gives HVAC an important role in controlling indoor temperature and humidity.
With the introduction of ducts in HVAC, it became possible to improve indoor humidity and provide a comfortable temperature in different parts of a building. HVAC services use controlled and measured air flow through ducts to distribute air temperature and humidity throughout the building. Ducts also remove allergens, dust, and other undesirable elements in the air.