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Office hours Mon-Fri: 8am-5pm

Variable Refrigerant Flow (VRF)

Is it time to replace the HVAC system in your home or commercial space? If so, there is a new type of technology available in heating and cooling that you may not be aware of called Variable Refrigerant Flow (VRF).

What is VRF?

Variable Refrigerant Flow, or VRF HVAC Systems, have become more popular in the United States over the past 5 to 10 years, however this technology has been the first choice for HVAC systems in Europe, China, Japan, and around the world for much longer. VRF HVAC systems use outdoor condenser units and indoor fan coils, and are air-coiled and refrigerant-based. However, these systems feature several small, individually controlled air handlers that pipe back to one system rather that one large unit pushing air out into the entire space. The fact that the system can control how much refrigerant flows to each of the small air handlers is where the term “variable refrigerant flow” comes from. This VRF HVAC technology is capable of heating as well as cooling and can do so simultaneously through different handlers within the same space. Zones can be created with multiple handler units, allowing each to be individually controlled. Additionally, each system is very quiet and only runs at the necessary capacity allowing them to be very energy efficient.

Why Use a VRF System?

Space Saving

Most VRF HVAC systems don’t require ducts and the air handlers are smaller, thus wall and ceiling space required for equipment is minimal. Mobile control technology allows users to adjust temperature setting from mobile devices for each zone. Commercial units offer much more flexibility than traditional units due to the built-in controls.


The temperature of each zone is maintained consistently by the VRF system so there aren’t any hot or cold spots. It’s always just right.

Energy Efficient

Designed to be efficient at every turn, the VRF HVAC runs only when needed in the zone where needed. As a result, the systems run less frequently at a lower capacity and use less energy.

Less Downtime

Because the system runs less frequently at a lower capacity, there is less wear and tear on parts. This results in fewer breakdowns. And if there is a problem with one air handler the others are not affected, which means the entire space is not without heating or cooling at the same time.

Simultaneously Heat and Cool

Residual heat is pulled from the air when cooling and used to heat other areas that might need it, making it easy to heat and cool parts of the same building simultaneously. So while running the air conditioning in the living room for the large gathering, the heat can be running in the bedroom keeping it cozy for the sleeping children. Ready for a VRF System now? Call us today!

Call our friendly team to learn more about our HVAC services at 409-842-4429.

Air Services Unlimited is a trusted name in HVAC, and we want to become your go-to HVAC services company for life.