What Is Freon Used For in Air Conditioning?

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At ALCO HVAC Plumbing & Gas, we get a lot of questions about freon. Homeowners want to know what it is, how it works, and whether it’s still safe to use. We get it—refrigerants can sound technical, but they play a huge role in your comfort. Let’s break it down so you can better understand how freon affects your AC system and home environment.

What Is Freon?

Freon is a brand name that’s become the everyday term for certain refrigerants used in air conditioning systems. Technically speaking, freon refers to a class of chemicals (typically HCFCs or CFCs) that circulate through your AC unit, absorbing and releasing heat to cool your home. It’s not something you see or touch, but without it, your air conditioner simply wouldn’t work.

How Freon Works in Your AC

The process is pretty straightforward, even if the science behind it is more complex. Freon flows through your AC’s coils. As it moves, it changes between gas and liquid states. This phase shift allows it to pull heat from inside your home and release it outdoors. That’s how you stay cool when it’s blazing hot in Fredericksburg.

Why Freon Is Being Phased Out

It’s important to know that older types of freon—especially R-22—have been phased out due to their impact on the ozone layer. If your system still uses R-22, it’s becoming harder (and more expensive) to find. Newer systems now use more eco-friendly refrigerants like R-410A. At ALCO, we help our customers figure out if their system is affected and what steps they can take.

Additionally, some older refrigerants have raised environmental concerns beyond ozone depletion. Certain types may contain PFAS compounds—a group of human-made chemicals used for their resistance to heat, water, and oil. Often called “forever chemicals,” PFAS stay in the environment for a long time and can accumulate over time. These concerns have pushed the HVAC industry to adopt newer, safer alternatives, even though the risk to homeowners is generally low.

Signs Your System May Have a Freon Issue

  • Your AC isn’t blowing cold air.
  • Ice is building up on the coils.
  • You hear hissing or bubbling noises.
  • Your energy bills have spiked unexpectedly.

If you notice any of these signs, give us a call. Low freon levels could be the culprit, and it’s something we handle all the time throughout Fredericksburg and the surrounding areas.

Can You Still Recharge Freon?

For older systems that use R-22 freon, recharging is technically possible—but not always practical. Because of supply limitations and environmental regulations, the cost of recharging these systems can be pretty high. In some cases, a system upgrade is the smarter move. We’ll guide you through your options and make sure you stay comfortable.

Freon and Newer AC Systems

Most newer systems in the Fredericksburg area no longer use the traditional types of freon. Instead, they rely on refrigerants that are both safer for the environment and more efficient. If you’re not sure what your system uses, we can inspect it and give you a clear answer. At ALCO HVAC Plumbing & Gas, our goal is to keep you informed and comfortable.

What We Recommend at ALCO

If your system still runs on outdated freon, it might be time to start planning for an upgrade. We’re not saying you need a brand-new system tomorrow, but getting ahead of the curve can save you money in the long run. Plus, newer systems tend to run more quietly and cool more evenly.

Local Support You Can Count On

Living in Fredericksburg, we know how crucial a reliable AC system is during those hot Virginia summers. Whether you’re dealing with freon concerns, strange noises, or just want peace of mind, ALCO HVAC Plumbing & Gas is here to help. Our experienced team is just a call away, ready to answer your questions and make honest recommendations.

Final Thoughts

While freon has played a major role in air conditioning for decades, its time is gradually coming to a close. Whether your system still uses it or not, knowing how freon works can help you make smarter decisions about your HVAC system. And if you ever feel unsure, you can always count on us here at ALCO HVAC Plumbing & Gas in Fredericksburg, VA. We keep you cool, informed, and confident in your system—every step of the way. Contact us today!