Heating, Ventilation and Air Conditioning

HVAC is an initialism that stands for Heating, Ventilating and Air Conditioning which are all based on the basic principles of thermodynamiccs, fluid mechanics and heat transfert.

Those three functions are closely interrelated as they all seek to provide thermal comfort and acceptable indoor air quality.

Heating: Heating systems may be classified as central or local. Central heating is often used in cold climates. Such a system contains a boiler, furnace or heat pump to heat water, steam or air.

Ventilating: Ventilating is the process of "changing" or replacing of air in any space to remove moisture, odours, smoke, heat or dust.

Air conditioning: Air conditioning and refrigeration are provided through the removal of heat. It can be remove through the process of radiation, convection and conduction using mediums such as water, air or ice as refrigerants.