HVAC Zoning

Choosing an HVAC system with zoning will allow you to customize the temperature in different zones. This can save you money and energy in the long run, but zoning requires a lot of labor, including testing and setting parameters for each zone, as well as troubleshooting and reprogramming. Ductless mini-splits can do the same, but with one exception. Instead of having multiple indoor and outdoor units, a single system can have up to five heads, each head providing a room with heating or cooling.

Energy savings

HVAC zoning helps you control the temperature in each area of your home. By using multiple thermostats, a zoned system lets you set different temperatures for each section of your home. This way, you can enjoy different temperatures in different rooms of your home, such as bedrooms, bathrooms, and living rooms. This also reduces energy bills and enhances comfort levels in your home. HVAC zoning systems can save you money on your utility bills, too.

HVAC zoning works best when your system has multiple speeds. Two-speed systems can run at approximately 66% of capacity in the downstairs part of your home, while multi-speed models can operate at 100% capacity. HVAC zoning can also involve installing two separate HVAC systems for different parts of your house. This allows you to control the temperature in each room separately, which reduces cooling needs in the other parts of your home while increasing comfort in the upstairs rooms.


You can save money on energy bills and comfort by zoning HVAC systems. The process of installing separate zones for each area is called HVAC zoning. HVAC zoning can be retrofitted to existing homes or installed on new construction. If your house is multi-level with large windows, you can save up to 40% of energy by installing a 2-zone system. HVAC zoning can pay for itself in five years or less.

The cost of installing an HVAC zoning system depends on the number of zones and the size of the house. The equipment cost between $2,000 and $4,000, depending on the size and type of system. For a typical two-story house, adding a second zone costs between $1,700 and $2,800. A third zone can cost between $335 and $500. Adding zoning to your HVAC system can drastically reduce energy costs and utility bills.


When using a zoned HVAC system, you should look for two-stage or modulating equipment. Single-stage equipment operates at 100 percent of its capacity. This means that it can’t provide zones because the unit is always running at full capacity. Single-stage equipment also has one airflow rate, which means that you can’t get lower airflow with it. In a two-story home, a single-stage HVAC system is an excellent choice.

One common problem with zoned HVAC systems is ice buildup on the AC coil. A freeze stat measures the temperature of the copper refrigerant line. If the temperature drops below a certain threshold, the outdoor unit shuts down temporarily. This means that the blower will continue to blow air, but the compressor won’t run. This can lead to a malfunctioning zoned HVAC system. Fortunately, a qualified HVAC technician can solve this problem.

Timeliness of project

The timeliness of an HVAC Zoning project will depend on the timing of the project. If a new building is being constructed, zones will be designed prior to selecting the HVAC system. This is because the ductwork is designed with zones in mind. If a retrofit situation exists, the zoning method should be the least invasive, such as installing dampers on the air registers. An HVAC replacement technician will know which approach is the best for the project.

In addition, zoning can cause pressure problems. For example, the temperature upstairs may be higher than downstairs. When this happens, the HVAC system can no longer cope with the increased pressure. The resulting heat can shorten the life of a blower. In order to prevent this problem, HVAC contractors should ensure that their customers are kept updated with the project’s schedule. Here are some tips for timeliness of HVAC Zoning projects: