What Is HVAC And What Do You Mean By HVAC System?

More often than not, you come across huge HVAC units outside buildings and industrial areas which leave you with a lot of questions, like, How does this whole system work and why is it so necessary for buildings? Should you get one installed for your home or office as well? And so on! With this blog, you will get to know all about the basics of a HVAC system, how it works and what are its main components! Let us clear out some of the most common HVAC related questions first.

What does HVAC stand for and what is its purpose?

The full form of the term HVAC is “heating, ventilation, and air conditioning”. This term is generally used to refer to the air inflow and outflow system of a home or a commercial building. HVAC’s full form itself describes the overall functions of the HVAC systems!

The basic purpose of an HVAC system is to ensure that the indoor air and environment is comfortable. Besides that, it also ensures that the atmosphere stays safe for people living or working inside the building. Maintaining the right temperature, airflow, and ventilation is a must as per the norms of safe and healthy building conditions – HVAC system makes it happen!

What is an HVAC System?

HVAC System is an important part of all residential and commercial buildings. The term HVAC commonly includes the design, construction, operations, and maintenance of the air system of a building and comprises of linked processes like humidity control, temperature control, removal of moisture, odors, smoke, dust, and regulation of heat along with air circulation.

Basics of HVAC systems – What does an HVAC system comprise of?

Outdoor HVAC System

An HVAC system is an integrated system that performs multiple functions. Usually, all the functions of an HVAC system can be controlled by a single interface which means, you do not have to control each of the HVAC units individually.

Three main units of the basic HVAC system:

The basic HVAC system consists of a heating unit, ventilating unit, and an air conditioner. Some modern variants include an air filtration unit as well to improve indoor air quality.

Major components of HVAC systems:

The most basic components of an HVAC system include a thermostat, condensing unit, evaporator coil, furnace and heat exchanger. Some other auxiliary components include refrigerant lines, ductwork, and vents which allow the air to circulate inside the system. For more information on the HVAC components, you can read this article about What Are The Basic HVAC Components.

Why installing an HVAC system is important:

HVAC System Diagram

HVAC systems have been long used in residential and commercial buildings. But it is crucial to know why this whole HVAC system is important.

Here are a few reasons why you should install a HVAC system in your home & office

The basic usage of HVAC systems arises from the need to live in a comfortable and temperate environment. Places which witness extreme climates with chilling winters or burning summers feel the need to control their indoor climate so that the people living or working inside the building can be comfortable inside the building. The HVAC system regulates the temperature of the air inside your home or office and heats it or cools it to bring it to an optimum temperature. It also reduces the spread of airborne bacteria and viruses as they cannot survive easily in temperate climates.

Installing this system also helps you maintain natural or forced ventilation inside the building which is a must for keeping many respiratory or virus-borne diseases at bay. To know about what kind of HVAC systems are used in the buildings, check out our post about the types of HVAC systems that can be used in buildings.

History of HVAC:

HVAC system

The earliest recorded history of HVAC systems dates back to the time when Egyptians, Greeks, and Indians used to control the temperatures around their establishments using human-powered fans, basement furnaces, and rope fans in the year 1000. After a few hundred years, chimneys were invented which are used widely to this date. It is said that Leonardo Da Vinci invented a water-driven fan to aid in indoor ventilation.

Stove heating systems were invented in the year 1800 by Benjamin Franklin. Also, the steam engine and latent heat were other vital discoveries in that period. The modern day era started with significant developments in the field of thermodynamics by James Joule and Carnot. Which gave way to the development of the modern commercial and home HVAC systems that we use today which include floor heating panels, solar power-based systems, and hydronic circulator pumps.

The difference between Modern-day HVAC systems & Old HVAC systems:

The modern day HVAC systems are much more efficient and cost-effective as compared to older models. They use advanced pieces of equipments to do much more than just heat or cool your living space. They also ventilate your home, clean the air using internal air filters and work towards saving energy by being environment-friendly. Furthermore, Modern systems are also easier to control as compared to primitive HVAC systems. As system control is a major field on which many modern HVAC research studies are based upon.

It is also easier to maintain the modern systems. As there are many small issues that can solve easily by the building owners themselves without the help of any certified HVAC technician. Commercial HVAC systems, however, require some external help in most cases as they involve large-scale operations and complex equipment.

Modern HVAC industry functions around the design and construction of the home and commercial HVAC systems, repair and maintenance, equipment sales, and research. There are many regulating agencies which keep a check on the practices. Being followed in the industry and how to improve them.

HVAC Repair & Maintenance Tips

Regular maintenance is the key to good air quality and ambient temperature inside your home and office. Certified HVAC contractors and technicians working with best home air conditioning companies go through all these minute details. After the maintenance comes the repair of HVAC systems which can prove to be costly if you are not working with the right HVAC contractor who knows the basics of HVAC processes. Delaying the HVAC repair or not doing its proper maintenance can also make the indoor environment uncomfortable for people working or living inside the building. Hence, you should always get your HVAC system’s repair and maintenance done timely.

When you are looking to set up a good HVAC system for your home or office, it is very important to select a reputable HVAC company. Besides that, you should also select a certified technician who has an ample experience in handling HVAC related jobs. They can offer you the best price and help you get the best deal on installation and maintenance of your HVAC system. For more information on some of the best HVAC companies working in your area, you can read this blog which contains all the information related to HVAC systems and contractors.

So these were some of the basics of HVAC and HVAC systems which should read and understood well. Keep on reading our posts to know why HVAC systems should be given prime importance and who is the best HVAC contractor and HVAC company providing services in your area. We will also help you with which things you should focus on when hiring an HVAC contractor and basic checklists which you can refer while installing an HVAC system for your home or office.

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