Types of HVAC Appliances
Heating, ventilating, and air conditioning (HVAC) is the science of vehicular and indoor environmental comfort. The goal of HVAC is to deliver acceptable indoor air quality and temperature to the occupants of the space. The system includes the heating, ventilating, and air conditioning (HVAC) appliances, ductwork, registers, and filters; as well as any associated equipment and services. The components of HVAC are usually combustion engines, heat pumps, refrigeration or other cooling systems, and a way to equalize the indoor humidity and temperatures.
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The majority of HVAC units use ductwork and filter systems to provide HVAC with the airflow and temperature it needs. Although HVAC can be operated with one or two different kinds of ductwork – such as the distribution and brake ducts or the single-duct and high efficiency partials ducts – there are several advantages to using a common system. One advantage of common HVAC ducts is that they simplify maintenance and energy efficiency by using a common set of ducts and a uniform air pressure and temperature throughout the HVAC system.
Central air conditioners and furnaces, on the other hand, utilize heat pump engines. A heat pump engine is not a true HVAC appliance because it does not circulate air, heat, or cool air. The majority of furnaces and central air conditioners are powered by gasoline, propane, or electric motors. Furnaces can be permanently or temporarily powered by electricity, but only furnaces that are permanently powered are typically referred to as furnaces. Air conditioners, on the other hand, are generally referred to as “ductless furnaces” and use a set duct system to move the air into the home. These units are generally more energy efficient than furnaces, but ductless furnaces are not suitable for use in residential homes.