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Where to Buy Nitrogen Gas for HVAC and How to Use It?

The Benefits of Using Nitrogen in Your HVAC System Along With Some General Facts and Usage Tips!

Using nitrogen gas for HVAC has become a popular choice for businesses that want to improve the efficiency of their HVAC systems. If you are in the industry, it is important to know where to buy it and equally important to understand how to use it.

In this article, we’ll discuss the basics of nitrogen gas and how you can use it in your HVAC system. We’ll also provide a list of reputable suppliers who can help you get started, as well as the benefits of using nitrogen in your HVAC system and some general facts and usage tips!

What is Nitrogen

Nitrogen gas is a naturally occurring, invisible, odorless gas that makes up 78% of the Earth’s atmosphere. It’s also found in small amounts in other gases, such as argon and carbon dioxide. It is the most plentiful element in Earth’s atmosphere and is a constituent of all living matter.

Why is Nitrogen Used in HVAC Systems?

There are many benefits to using Nitrogen in HVAC systems. Nitrogen is non-toxic, odorless, and colorless, making it an ideal choice for many different applications. Nitrogen is also less expensive than other gases, making it a cost-effective option for businesses. It is also safe to use in many environments, including food processing plants and hospitals.

Nitrogen is an inert gas that doesn’t react with other elements or compounds. This makes it safe to use in many different applications, including HVAC systems. Purging with nitrogen removes oxygen from the system, preventing oxidation and corrosion. Nitrogen can also be used to pressurize systems or as a blanketing gas to prevent evaporation.

Nitrogen gas is often less expensive than other gases, making it a popular choice for businesses and homeowners alike. It also helps improve HVAC systems by cooling the coils more efficiently and by preventing the formation of ice on them. This is because nitrogen has a boiling point of -196 degrees Celsius, which is much lower than the temperature at which water freezes.

As a result, nitrogen can help improve your system’s performance by preventing your system’s coils from freezing over. This will improve your HVAC systems overall efficiency and save you money on your monthly energy bills.

Is Nitrogen Gas Flammable?

Though nitrogen is not flammable, it does support combustion. When nitrogen is combined with oxygen, it creates a very explosive mixture. This mixture is often used in fireworks and other pyrotechnics. It can also be found in some welding torches. Though nitrogen itself will not burn, it can contribute to fires that are already burning.

For this reason, it is important to be careful when using nitrogen gas. If you are working with highly combustible materials, you should take extra precautions to make sure that the area is well ventilated. You should also avoid using any type of open flame near nitrogen gas. Even a small spark could cause a dangerous explosion.

Although for HVAC systems, the answer is no, nitrogen gas is not flammable. It’s often used as an inert gas to help prevent fires in oxygen-rich environments. So if you’re looking for a safe and cost-effective way to fuel your HVAC system, nitrogen gas is a great option.

How Are Liquid Nitrogen and Nitrogen Gas Different?

Nitrogen Gas is an odorless, colorless gas that turns into a liquid when placed under high pressure. It’s made by fractional distillation of liquefied air and is typically used as a coolant. When exposed to open air, liquid nitrogen quickly evaporates, making it extremely dangerous to handle without proper safety precautions. It can cause severe burns and tissue damage, so be sure to wear gloves and protective clothing when handling it!

Liquid nitrogen is an incredibly useful tool with a surprisingly low boiling point. -196.15 Celsius or -321.27 Fahrenheit to be exact. It’s used in a variety of industries, from cryogenics to food processing, and can even be found in your local grocery store!

Liquid Nitrogen is made by cooling Nitrogen Gas until it turns into a liquid. This process is called liquefaction, and it requires special equipment because Nitrogen has a very low boiling point. Once the Nitrogen has been turned into a liquid, it can be stored in special containers called dewars.

Dewars are made of a double-walled construction with vacuum insulation in between the walls. This helps to keep the Nitrogen cold and prevent it from evaporating. When you’re ready to use the Nitrogen, you can pour it into a container or use a special dispensing tool.

Where to Buy Nitrogen Gas For HVAC

Reaction Industries

Reaction Industries is a Nitrogen gas company located in the United States. They supply Nitrogen to all types of businesses, including those in the HVAC industry. They have a wide range of products and services, and their team is passionate about helping their customers succeed.


matheson the gas professionals logo

MATHESON is a leading global supplier of Nitrogen gas. They offer many different grades and purities of Nitrogen, and they have a long history of providing quality products and outstanding customer service. They aim to create social value through innovative gas solutions that increase industrial productivity, enhance human well-being and contribute to a more sustainable future.

Air Products

air products logo

Air Products is also a leading supplier of Nitrogen gas. Focused on serving energy, environment, and emerging markets. They we provide essential industrial gases, related equipment, and applications expertise to customers in dozens of industries, including refining, chemical, metals, electronics, manufacturing, and food and beverage. They also have a team of experts who are dedicated to helping their customers succeed.


If you are local to Columbus, Ohio then you can find Airgas off of Distribution Dr. Don’t worry if you are not in Ohio though because they have distribution warehouses in all 50 states. Airgas, an Air Liquide company, is a leading single-source supplier of gases, welding equipment and supplies, and safety products.

With more than one million customers, Airgas excels at providing customers, large and small, with the following:

  • Industrial, medical and specialty gases
  • Welding equipment and supplies
  • Safety products
  • Atmospheric gases – Nitrogen, Oxygen, Argon
  • Carbon Dioxide
  • Dry Ice
  • Nitrous Oxide
  • Ammonia
  • Process Chemicals

Nitrogen is an essential gas for many industries, and many different suppliers can provide it. When choosing a supplier, it’s important to consider factors such as price, quality, and customer service. Reaction Industries, MATHESON, Airgas, and Air Products are all leading suppliers of Nitrogen gas with years of experience in the industry. Visit their websites today to learn more about their products and services or to request a quote.

Step by Step on how to flush an HVAC system with Nitrogen:

hvac system flush
  1. Turn off the power to the unit. Nitrogen is heavier than air, so it will sink to the lowest point in the system. Doing this will prevent nitrogen from entering the living space.
  2. Open all of the access panels on the unit. This will give you access to the coils and other components of the system.
  3. Remove any filters from the unit to avoid damaging them with the Nitrogen.
  4. Remove any debris from the unit, such as dust or dirt. This will prevent the Nitrogen from becoming contaminated.
  5. Using a nitrogen tank and regulator, attach the hose to the service port on the unit, which is usually located near the coils.
  6. Attach the other end of the garden hose to the lowest point in the unit. This will allow the Nitrogen to flow through the entire system.
  7. Open the valve on the Nitrogen tank and adjust the regulator to the recommended pressure. This will be specified in the owner’s manual for the unit.
  8. Open the valve on the nitrogen tank and allow Nitrogen to flow into the system for about 15 minutes. This will allow the Nitrogen to flush out of the system.
  9. Close the valve on the Nitrogen tank and disconnect the hose from the service port on the unit.
  10. Replace any filters that were removed and close all access panels on the unit.
  11. Turn on the power to the unit and check for leaks. If there are no leaks, you’re done!

Nitrogen is a safe and effective way to flush your HVAC system, and it’s often less expensive than other gases. Give it a try next time you need to flush your system!

How Much Does Nitrogen Cost?

The average price of liquid nitrogen is around $200 per gallon. However, the price can vary depending on the supplier and the amount you purchase. If you plan on using liquid nitrogen for a long time, it’s worth investing in a dewar or cryogenic container, which can cost around $800.

Compared to the prices of some other gases, Nitrogen is very affordable. For example, Helium gas can cost around $800 per thousand cubic feet. Nitrogen, on the other hand, costs less than one-third of that price. This makes Nitrogen a great choice for many different applications.

So, if you’re in the market for an affordable gas that can be used for many different purposes, Nitrogen is a great option to consider.

Is Nitrogen a Good Refrigerant?

The answer is a resounding YES! Nitrogen is an excellent refrigerant for several reasons.

First, it has a very low boiling point, which makes it ideal for use in refrigeration systems. It also has a very high heat capacity, which means that it can absorb a lot of heat before its temperature starts to rise. Finally, nitrogen is non-flammable and non-toxic, so it is safe to use in both commercial and industrial settings.

There are a few things to keep in mind when using nitrogen as a refrigerant, however. It is important to ensure that the system is properly sealed so that no air can enter. Nitrogen can cause corrosion if not used correctly, so it is important to consult with a professional before using it in your system.

Overall, nitrogen is an excellent choice for a refrigerant and can provide significant benefits for both commercial and industrial applications. If you are considering using nitrogen in your system, check with a professional first to ensure that it is the right choice for you.

Other Uses of Nitrogen Inside the Home

Nitrogen isn’t just for HVAC systems, it can also be used to keep food fresh! Nitrogen is a great way to preserve food because it prevents spoilage by inhibiting the growth of bacteria. Many people use nitrogen to keep their fruits and vegetables fresh for longer periods of time.

You can also use nitrogen to make your own homemade ice cream! The high pressure created by the nitrogen gas helps to create a smooth and creamy texture that is perfect for summertime treats. If you’re looking for a way to add some excitement to your cooking, consider using nitrogen gas! It’s safe, easy, and can really elevate your dishes.

Nitrogen can also be used for cleaning purposes. Nitrogen is often used as a powerful blast media for cleaning industrial equipment. The high pressure created by the nitrogen gas helps to remove stubborn dirt and grime quickly and easily. Nitrogen can also be used to clean delicate items like jewelry and watches. If you’re looking for a safe and effective way to clean your home, then nitrogen gas may be for you!

Nitrogen can also be used for tire inflation, and many people use it to fill their car tires. Nitrogen is less likely to leak out of tires than air, so it can help improve fuel economy. Nitrogen-filled tires also tend to run cooler than air-filled tires, which can help extend the life of the tire. You can purchase nitrogen gas from many different suppliers, and it’s important to follow the manufacturer’s instructions when filling your tires.

In Summary

Nitrogen gas is often used in HVAC systems to help improve the overall performance and efficiency of the system. It can be flammable under certain circumstances, and it has a very low boiling point.

Nitrogen can be purchased from many suppliers, and it’s important to follow the correct procedure for flushing an HVAC system.

The cost of nitrogen may seem high, but when compared to other gases like Helium and to the cost of repairing an HVAC system that has been damaged by corrosion, it is a relatively small investment.

Nitrogen is not currently being used as a refrigerant in most residential or commercial applications, but there are some situations where it could provide advantages over traditional refrigerants.

If you are looking for other good informational blogs about the HVAC industry, then the Smart Service blog is for you. Smart Service offers HVAC software for the field service industry that makes everyday job processes fast and easy. It allows you to streamline your business and has features that can make your technicians lives easier too! Check out Smart Service for a free demo today!