How do the commercial vent hoods work?

Apart from complying with the fire, building, and health codes, a company or professional space should have a professionally installed commercial vent hood system. While the process for commercial vent hoods installation might seem easy, it surely isn’t! It is better when installed by a highly-trained technician. In an effort to create an environment for your staff that is clean and healthy, you need to have a reliable commercial vent hood system in place.

How do commercial kitchens balance themselves?

The commercial vent hood present in the restaurant’s kitchen acts as the heart of its ventilation system. Ask any restaurant or commercial kitchen owner, and they will tell you how important a vent hood is. This is what helps balance the air present within the facility.

When a building or restaurant’s air is unbalanced in a negative manner, the problem here is very simple. The total amount of bad air that is exiting the building via the vent hood isn’t being replaced with a proper amount of air outside. This leads to the development of negative pressure within the building.

If and when this happens, the building starts getting desperate to acquire balance from anywhere possible. It begins pulling in air from different openings or corners of the building. This might include places from where you might not like the air coming in. This is why you tend to smell unpleasant odors where a commercial vent hood is broken. This can also lead to dirt and dust seeping in. In such cases, you need to seek help from service providers for commercial vent hoods installation.

How to know if the commercial vent hood system isn’t working?

The best way to check whether your commercial vent hood system is working or not is to opt for the “Front Door” test. In order to do this, you need to go outside the building & open its entrance door.

Now ask yourself these three questions.

1-Was it easy to pull open the door towards you?

2-Did to struggle to open the door?

3-Did you feel any type of vacuum build-up when pulling the door?

If the answer to any of these questions is yes, it is time for you to consider help from a professional for commercial vent hoods installation. With experienced help, you can keep up the air balance inside the facility.

Now, let’s get to the part where we understand how the commercial vent hood systems work.

A generic vent hood system is comprised of three prime components:

  • Exhaust Fan
  • Vent Hood
  • Return Air Fan (or the Makeup-Air Fan)

All these 3 components need to work in a cohesive manner to provide optimal efficiency. This leads to the effective completion of the job. You need to opt for an in-depth assessment of your facility to determine whether the components are functioning properly.

In order to ensure that your commercial vent hood isn’t affected with contaminants, you need to schedule regular maintenance services from professionals for commercial vent hoods installation. The regular flow of vapor that is laden with grease can lead to contaminants collection inside the vent. If the vent hood isn’t installed or maintained properly, it can lead to grease accumulation that affects the air quality within the kitchen or building. It can also drastically increase the chances of kitchen fires. With no proper ventilation system in place, there is a rampant increase in the humidity levels. This leads to the creation of an environment that promotes the growth of bacteria and mold.

Vent Hood Types

When talking about commercial vent hoods, there are two different variants that come into play. The commercial vent hoods installation that takes care of grease or grease vapors can be termed as Type-1 vents. On the other hand, if your vent hood is dedicated purely for removal of steam vapors& heat that is caused due to high-temperature type dishwashers, this particular variant is termed as the Type-2 vent hood.

When planning to opt for commercial vent hoods installation, the most critical questions that you need to ask yourself includes:

  • How large does my vent hood need to be?
  • What is the amount of air that my vent hood should remove?
  • How can my vent hood affect the building’s environment?

There are several elements that affect the environment inside a building. However, a vent hood is one of the most critical components that decide how good the air quality inside your building will be.

Why is good air quality important?

Good quality air with proper commercial vent hoods installation is critical for any building. This is due to the fact that fresh air can help open up the mind and promote general well-being. With stale air circulating through the building, there could be instances of:

  • Lingering Headache
  • Respiratory System Issues
  • Mold, Mildew Formation
  • Lethargy
  • Bad Mood
  • Lack of Motivation

This can affect the overall quality of work being done in your commercial space. In order to avoid this issue, make sure you get the help of professional service providers for commercial vent hoods installation.

Typically, a Type-1 system for commercial vent hood us paired with a make-up air system. This secondary system is installed with the use of a different duct that connects with the fresh air system on the vent hood.

When should you call in for professional help?

Now, there is a fine line between a perfectly functional commercial vent hood and the one that is on the verge of breaking down. You might not notice the signs at first, but if you pay attention to certain details, you will surely confirm that there is an issue with your system.

Here are some signs that you need to keep in mind when determining whether or not you need professional help from technicians for commercial vent hoods installation.

1-Front Door Test:

As explained in the blog earlier, this test can help determine whether your system needs immediate help or not.

2-Lingering Smoke or Haze:

If your building is filled with an arid & disgusting cover of smoke, your employees/staff might get affected due to this. It can also affect your overall work in a negative manner. Plus, there is always the issue of health. The best way to avoid this situation is to opt for professional help for maintenance and commercial vent hoods installation.

3-Odors can be smelt outside:

Another factor that determines your need for certified help for commercial vent hoods installation is the presence of odors that can be smelled towards the exterior areas of the building. This points out to the issue that your vent fans are not functioning properly. It could also be a sign of grease clogging. In order to avoid this situation, you need to call for immediate help from specialists for commercial vent hoods installation and repair.


Apart from this, issues such as inconsistent cooling or heating within the facility, abundance of dirt & dust that is thoroughly visible, and breathing issues could be a sign of non-functional commercial vent hood. In order to ensure that your vent hood system functions properly for years to come, you need to ensure regular maintenance cycle with timely repair if need be.

In need of a trustworthy service provider for commercial vent hoods installation? At Enertia HVAC/R, we provide top-quality services for your HVAC system. We cover everything from your heating system to the air conditioning systems in your vicinity. We tend to both commercials as well as residential systems. To get a free estimate for a service that you need, text us at (469) 351-9657 or call us at (214) 550-3458. You can also write to us at

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