What is HVAC?

Are you a new home owner? Someone in the market for an HVAC system? A curious researcher looking for some HVAC basics? Well, you’ve come to the right place! We at HTR Mechanical, LLC. are here to answer your HVAC questions such as “What is HVAC” and more!

What does HVAC stand for?

HVAC is an acronym for …


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Includes appliances like water heaters, furnaces, boilers and etc…


ac service company Levittown

Refers to vents, duct work and etc…

Air Conditioning

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Includes mini ductless splits, air scrubbers, and commercial AC, etc…

Together heating, ventilation and air conditioning make up your whole HVAC system. Their purpose is moving air, throughout your home or office, between the indoors and outdoors. Moreover, this circulates the air to keep it fresh but also allows for the air to be heated or cooled so everyone in the building is comfortable. Thus, it goes without saying that ventilation moves the air, the heater will warm the air and the air conditioner will cool the air.

What is HVAC System?

HVAC systems have the job of warming or cooling spaces but also improving indoor air quality so everyone in the home or office is comfortable. The ventilation system is responsible for bringing fresh air from outside in to the indoors. Additionally, there are two methods of ventilation, natural and mechanical.

Natural ventilation, which most homes can utilize, refers to air moving in and out of the building via windows, doors, vents and other openings.

Mechanical ventilation uses duct-work and other similar set ups to move outdoor air, inside. This is also how air can be filtered, warmed and cooled all year around.

When air is brought in it will go through a filter that catches dust, allergens and other particles. Then, depending on the actual room temperature and what your thermostat is set to the air will be moved to the heater or air conditioner before being pushed fully inside and in the room. Because of this, filters are very important to the maintenance of any HVAC system and air scrubbers can be installed for even cleaner air quality.

When was HVAC invented?

The first modern air conditioning system was invented in 1902 by an engineer names Willis Carrier. He built this version to combat humidity in a printing company building.   Although, other versions existed before that. For example, the Massachusetts Medical Building is regarded as the first U.S. building to have central heat and that was in the year 1816. Despite that, central heating didn’t become common until the 1950s. While having air conditioning was also common place in the 1950s, central air didn’t really become the norm till the 1970s.

Tips for Maintaining Your HVAC?

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