Heating, ventilating, and air conditioning (HVAC) is the science of vehicular and indoor environmental comfort. It is used for the control of internal temperature, humidity, and contaminants in indoor environments. The purpose of HVAC is to regulate temperatures for various activities and materials that require temperature controlled environments. HVAC includes heat pump systems, blowers, furnaces, ductwork, evaporators, gas turbines, and heat exchange units. HVAC is also used to heat and cool certain space by means of pumps or ducts. An HVAC system controls the temperature and humidity of a space through mechanical processes.
HVAC systems use several types of equipment to manipulate the temperature, humidity, and air distribution. Air is drawn into the enclosure through an air induction tube and enters through a mechanical venturi. The mechanical ventilation of the space is accomplished through a mechanical ventilation fan or blower. Air is removed from the enclosure through a mechanical venturi. The final result is a conditioned environment where the temperature and relative humidity are within specifications established by the manufacturer. A system’s efficiency is measured in energy consumption, cost of operation, and life expectancy.
Most people are familiar with the benefits of HVAC. This knowledge is beneficial in making an informed decision about the appropriate equipment for your heating and cooling needs. With the increased awareness of environmental concerns and the demand for energy efficient indoor living, homeowners are embracing HVAC to reduce costs associated with cooling and heating the home. Installing an efficient HVAC system can improve the comfort level and shorten the period of time spent feeling uncomfortable. The benefits of heat include: conserving energy, reducing or eliminating heating and cooling costs, providing adequate indoor air quality, protecting occupants from respiratory allergies, and enhancing the energy efficiency of the structure.