HVAC systems are vital for both commercial and residential buildings. They work to keep the indoor air quality at a comfortable level and also help regulate the temperature.

HVAC systems are made up of several different components, including a furnace, an air conditioner, and ductwork. However, there are residential and commercial HVAC differences.

These components must be regularly maintained and serviced. Otherwise, they can start to break down, which can lead to a decline in indoor air quality and an increase in utility bills.

Commercial vs. Residential HVAC Systems

By understanding the residential and commercial HVAC differences between these two types of systems, you can choose the best HVAC system for your home or business.

The Size

While there are some similarities between commercial and residential HVAC systems, there are also some important differences. One of the main differences is the size of the units.

Commercial units are almost always much larger than residential ones. Commercial units often need to be able to operate for long periods of time without breaks.

Residential systems typically use forced-air heating and cooling, and they may rely on ductwork to distribute air throughout the home.

Different Refrigerant

Commercial HVAC systems often use different refrigerants than residential systems due to the different cooling needs of commercial buildings. In addition, commercial HVAC systems often have multiple zones which can be controlled independently, while residential systems usually only have one zone.


Commercial HVAC systems tend to be more expensive to purchase, install, and maintain. However, even though commercial HVAC systems are more expensive, they can actually save you money in the long run. That’s because they are designed to last longer and be more energy-efficient.

The Temperature

The main difference between residential and commercial HVAC systems is the temperature. Commercial systems are designed to maintain a temperature between 70 and 75 degrees.

Some residential systems are designed to maintain a comfortable temperature for the occupants of the home, typically between 68 and 72 degrees.

Get The Best HVAC System For Your Home Or Business 

When installing a new HVAC system, you need to have people who are excellent at what they do. At KAY Heating and Air Conditioning, we strive to give the greatest service and installation possible to our clients.