It’s always that one room. Maybe it’s on an upper level. Maybe it’s in your basement. It’s ice cold no matter what you do. You leave the door to the hallway open. You check the air vents again. Finally, you crank up the heat. Now, that room is still cold, and the rest of the house feels like a sauna.
Many Smyrna homeowners assume the only answer is a new HVAC system. But can you add zoning to an existing ducted system? For many homes, you can. By adding zoning controls to your current HVAC system, you can finally heat that cold room without replacing your entire HVAC system.
An HVAC zoning system allows you to send conditioned air to different areas. However, zoning isn't right for every system. Your ductwork, equipment, airflow and existing controls should be evaluated first.
What Is an HVAC Zoning System?
HVAC zoning systems separate a home into different comfort areas. Each zone has an individual thermostat. Motorized dampers inside the ductwork adjust how much conditioned air flows to each area.
A zone control system for your HVAC means you can set different temperatures for each zone. Instead of treating the entire house as one space, the precise temperature control with a ducted zoning system allows for targeted comfort throughout the home.
Can You Add Zoning to an Existing Ducted System?
Adding zoning to an existing HVAC system can increase comfort in many homes. However, not every system is a good candidate for an HVAC zoning retrofit.
To determine if zoning is right for your home, a professional evaluation should look at several important factors:
- Existing air duct layout: Ducts must be able to support separate zones.
- Your current equipment type: Some HVAC systems are more compatible with zoning than other systems.
- Blower strength: The blower must be able to handle changing airflow as HVAC dampers operate.
- Age of your system: Older equipment may have limitations that affect zoning compatibility.
- Control board compatibility: Your equipment must work correctly with the added control system.
- Ductwork accessibility: Technicians need access to the ductwork to install dampers and wiring.
- Number of zones: More zones can increase installation complexity.
An HVAC professional should assess your HVAC system before determining whether zoning is appropriate.
7 Signs Your Home May Be a Good Candidate for Zoning Zoning
If your home has these common comfort problems, it may be a good fit for zoned heating and cooling:
- Upper Floor stays hotter than downstairs: Multi-story homes often have different comfort needs from one floor to another. Zoning can direct air where it is needed.
- Finished basements stay chilly: Because they are below ground, basements are often colder than main floor and upper story rooms. A separate zone can account for those temperature differences.
- Rooms with large windows get too hot: Solar heat gain can increase the temperatures in these rooms.
- Extra rooms above garages: These spaces often have can be difficult to keep comfortable with a traditional, non-zoned HVAC system.
- Additions stay too hot or too cold: An addition may have different ductwork, insulation or sun exposure.
- Family members prefer different temperatures: Separate zones can make it easier to accommodate different temperature preferences among family members.
- Sun-facing rooms become much warmer: Sun streaming through large windows, especially on the west side of a home, can make a room significantly warmer.
Benefits of Adding HVAC Zoning
HVAC zoning benefits start with your comfort. Zoning can provide consistent temperatures with personalized settings. It also is designed to eliminate the need to overheat or overcool some rooms to make other areas of the home a more comfortable temperature.
Depending on the home, zoning may improve energy efficiency and reduce unnecessary runtime. However, energy savings are not guaranteed, and correct system design is important.
When Zoning May Not Be the Best Solution
Zoning isn’t isn’t always the best solution for every home. Before investing in a home zoning system, an HVAC professional should find out what is the cause of uneven temperatures or other comfort problems in the home.
Inadequate insulation, air leaks, damaged ductwork and improper system design can cause rooms to be uncomfortably hot or cold. Systems that are too big or small for your home can also create comfort problems that zoning will not solve. Poor airflow, dirty filters and closed registers should be corrected before considering zoning.
In some homes, strategies like HVAC airflow balancing or making duct repairs may be a more effective approach than adding zoning controls.
What Does HVAC Zoning System Include?
Professional HVAC zoning installation begins with a home evaluation, airflow testing and a duct inspection to determine where zones and dampers should be placed.
Installation includes installing motorized HVAC dampers in your duct work, thermostats and control wiring. The technician then tests the individual zones and adjusts the system. Installation time varies based on duct accessibility, number of zones and system complexity.
Does HVAC Zoning Make Sense for Your Home?
If your upstairs is consistently warmer than downstairs or your home has other stubborn comfort differences, zoning could be a worthwhile option. HVAC zoning cost in your home depends on the number of zones, ductwork changes and controls.
The best way to decide if zoning is right for you is to have an experienced HVAC contractor like Fletcher Plumbing, Heating & AC assess your home and current HVAC system. Our team will inspect your ductwork, equipment, airflow and controls to help determine the right approach.
If you’re considering adding zoning to your HVAC system, Fletcher Plumbing, Heating & AC can help. If zoning is right for your home, we’ll design a system that’s right for you. If we think zoning isn’t a good fit, we’ll recommend other HVAC solutions we think will work better. Our goal is to make your home a comfortable place.
Take the next step toward a consistent comfortable home. Request an in-home estimate for zoning today.