What is HVAC?

What is HVAC?

Sometimes us mechanical technicians throw around industry jargon with the expectation that everyone just knows what we’re talking about. It’s simple to us, so it must be simple to everyone else! That isn’t always the case, as we’re continually asked questions about our lingo, the most common one-by far-being what HVAC is, covers and stands for.


First–and easiest–is that HVAC stands for Heating, Ventilation and Air-Conditioning. The term is commonly used to describe an entire heating and cooling system comprising of duct work, air filters, humidification controls and registers.

Heating is often done by a furnace or boiler in residential buildings. It usually contains a pipe system for the fluid transfer of heat, or a duct system for forced air units. The overall heating system can be connected to the water system of the building, also supplying hot water for bathing.

Ventilation can be either forced or natural. Forced ventilation is often used for air cleaning purposes, as filtration systems can be attached which purify the air. In general, natural ventilation has limited application; however our dry, cool air in Calgary enhances the applicability, so it may be worth asking your HVAC technician about.

Air-conditioning is, as expected, the opposite of heating. It encompasses the removal of heat from the interior of a building and blowing it outside. Furnaces are a part of air conditioning, as they supply air to the house; however, there are heat pump systems which combine the heating and cooling functions of the furnace and air conditioner which can allow the entire system to function from one source, with less need of a back-up system.

These systems can be small or large, and thus can comprise both residential and commercial buildings. Newly implemented systems, in general, will be incorporated as much as possible into one control system, which greatly increases efficiency (both from a cost and an environmental perspective) and can decrease space required to house it within the building. This setup also allows the system to be more reliable, easier to maintain and fully optimized to your requirements.

Get it? Pick up the phone today and request a service for any of your Heating, Ventilation, or Air-Conditioning units.

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