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Heating, ventilating, and air conditioning (HVAC) are an engineering technology of vehicular and indoor environmental conditioning. Its objective is to provide acceptable indoor air quality and thermal comfort to the occupants of the building. The technology has been in use in various applications since the mid-twentieth century, and it continues to gain increasing popularity in today’s highly dynamic and demanding environment. HVAC solutions are now used in the most technologically advanced private offices, commercial and public buildings.

HVAC

One major advantage of using HVAC is that it reduces energy costs, which contribute largely to a household’s total expenses. HVAC air conditioning units reduce the temperature inside a space by reducing external temperature differences by adjusting the flow of air through the vents or ducts. An HVAC system replaces traditional cooling and heating systems with a mechanism that combines heat removal, ventilation and energy saving. There are two types of HVAC: central and portable.

Central HVAC is often more effective than portable HVAC, but it is less expensive to operate. Central air conditioners require the use of energy sources (electric heaters and gas) to function, whereas portable HVAC uses energy sources (electric fans and evaporative coolers) to function. The basic difference between central and portable HVAC is the location of the cooling and heating units. Portable HVAC stands alone and can be moved from room to room if required.

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