What is an HVAC Zoning System?If you live in a two-story house, or you have a casita attached to your home, it may have been suggested to you to install an HVAC zoning system. You may now be asking, however, “What is an HVAC zoning system?” 

In short, an HVAC zoning system is a heating and air conditioning system that allows to “zone,” or direct, heating and cooling to certain parts of your home. This type of system allows you to have greater control over the temperature in each section of your home. 

In this article, we’ll be answering the question, “What is an HVAC zoning system?” In addition, we’ll be covering some of the pros and cons of installing one of these systems. 

Understanding an HVAC Zoning System

So, now that you know what an HVAC zoning system does, you may be wondering how it determines whether to heat or cool each zone. Your zoning system does this through bypass dampers installed between the supply and return ducts. These dampers will then open and close in order to direct the airflow to designated parts of your home. 

The next thing to consider is how you can control each zone of your home. For two-story homes, for instance, one zone may be the first floor of your home, while the second zone may be the second floor. In this case, each floor would have its own thermostat, which allows you to adjust the temperature of each floor. When you adjust the thermostat, the zoning dampers will adjust accordingly, so that each zone reaches the desired temperature. 

What are the Pros and Cons of an HVAC Zoning System?

HVAC zoning systems offer both pros and cons. With that being said, if you are considering installing such a system, you’ll want to weigh the pros and cons to order to decide if it’s right for you and your needs. 


1. Greater customizations for each zone. 

The most obvious benefit of a zoning system is that it allows you to set temperature for different sections of your home. For example, if your home has a casita, then you can make the primary household one zone and the casita another zone. As such, the zoning system allows the residents of each section to set their zone to their desired temperature. 

2. Compensate for temperature differences.

The next benefit this system can offer is the ability to compensate for temperature differences. For instance, if certain parts of your home tend to get hotter or cooler than the rest of your home, then you can zone those areas to receive the extra heat, or cooling, that they need. 

3. Get your hands on energy savings.

Last but not least, there is the potential to achieve energy savings when you install an HVAC zoning system. If you use your system correctly and zone your more seldom-used rooms, then you can reduce the amount of energy you use to heat or cool those rooms, thereby saving you energy and money in the long run.


1. More challenging to install.

It should come as no surprise that one con of these systems is that they require more equipment than your standard HVAC system. This is, of course, because you need to install the additional zoning dampers, for instance, that a conventional system does not call for. As such, you’ll want to find an HVAC company familiar with installing such systems, so that you can ensure your HVAC zoning system is installed correctly. 

2. Higher cost for installation.

Given that a zoning system calls for more equipment, it should also not be surprising that these systems are also more costly to install. Not only that, but with more equipment, your system will also require greater maintenance over time. As such, you may want to consider if zoning is necessary for you and your family’s needs before electing to install this type of system. 

3. Doesn’t always provide energy savings. 

Finally, it should be noted that zoning with a single-stage system doesn’t offer as many energy savings as one may expect. If you have a single-stage system, it is sometimes more energy-efficient and cost-effective to install two separate systems for the sections of your home that you’d like to “zone,” rather than to separate them into zones.

Ready to Install an HVAC Zoning System? 

We hope that this article has given you a better idea of what an HVAC zoning system has to offer, as well as if this type of system is right for you. If you are leaning toward installing this type of system, you’ll want to consider calling your local HVAC professional to get an estimate and to confirm that a zoning system is ideal for your needs. 

At Edge Heating & Air, we offer heating and air conditioning services, including HVAC zoning system installation. With our 24/7 emergency services, we have HVAC technicians on standby and ready to head straight to your door. With over 15+ years of service in the Temecula Valley, we’re ready to extend our excellent service to you. 

Schedule your service today by calling (951) 304-9658 or contact us online.