What Is HVAC?
HVAC stands for Heating, Ventilation, & Air Conditioning. These three components can be sold as individual appliances but as an HVAC, they are all one single unit that work in coordination with each other as it operates to maximize energy use.
Air Conditioning with an HVAC
The way air is cooled though an HVAC system is similar to that of a traditional Air Conditioning unit. An HVAC has an outdoor unit that contains the condenser and compressor and a unit indoors that is made up of the blower motor, evaporator coil and the sensors that moderate the temperature you set. It functions by pulling air from the house or office through the ducts where it is then taken to be cooled and recirculated back into the home through vents.
Heating with pump vs HVAC
Heating can come in many forms since different areas have different needs for heating. You can heat through a heat pump, which pulls air from outside, warms it, and distributes it into your home. Another way to heat a home is with a traditional cooling system. These are equipped with heat strips that are heated with electricity. When the air is pulled in from the house and processed through the unit, it is warmed by the heat strips and then distributed back into the home. You can also heat with a furnace or fireplace, but they are best for heating only a single room. The heating component in an HVAC system is a heating coil and it works in the same manner as the heat strips of a regular ac unit.
Ventilation in HVAC
HVAC systems offer an additional aspect lacking with other types of heating and cooling systems, ventilation. Those systems circulate air from the home, to the system, and back again. HVAC on the other hand, has ducts that allow for 2-way circulation. There is one vent to express stale, contaminated air and another to draw in fresh air from outside.
HVAC offers the best of both heating and cooling worlds plus the opportunity for fresh, clean air constantly.