You know the room. Maybe it’s upstairs. Maybe it’s in a finished basement. It’s always cold no matter what you do. You keep the hallway door 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 Mobile homeowners believe replacing the HVAC system is their only option. But can you add zoning to an existing ducted system? For many homes, you can. By adding zoning controls to your home’s HVAC system, you can finally heat that cold room without replacing your entire HVAC system.
An HVAC zoning system gives you the ability to independently control temperatures in different parts of your home. However, zoning isn't right for every system. Your ductwork, equipment, airflow and existing controls should be checked before installation.
What Is an HVAC Zoning System?
HVAC zoning systems split a home into individual comfort zones. Each zone has an individual thermostat. Motorized dampers inside the ductwork regulate the amount of conditioned air delivered to each zone.
A zone control system for your HVAC gives you the ability to set different temperatures in different sections of your home. Instead of treating the entire house as one space, the precise temperature control with a ducted zoning system provides more individualized comfort.
Can You Add Zoning to an Existing Ducted System?
Many homes benefit from adding zoning to an existing HVAC system. However, not every system can be easily retrofitted with HVAC zoning.
To determine if zoning is a match for your home, a professional evaluation should evaluate the following:
- Existing ductwork layout: Ducts must be able to support separate zones.
- Equipment type: Some HVAC systems are better suited to zoning than others.
- Blower capacity: The blower must be able to handle changing airflow as HVAC dampers operate.
- System age: Older equipment may not have the controls needed for a zoning system.
- Control board compatibility: Your equipment must be compatible with the new zoning controls.
- Ductwork accessibility: Technicians need be able to reach your ductwork for damper and wiring installation.
- Number of zones: More zones can increase installation complexity.
An HVAC professional should evaluate your existing system before recommending zoning installation.
7 Signs Your Home Could Benefit from Zoning
If your home has these common comfort problems, it may be well suited to zoned heating and cooling:
- Upstairs stays hotter than lower levels: Multi-story homes often have varying heating and cooling needs. Zoning can direct air where it is needed.
- Finished basements remain cold: Because they are below ground, basements are often more difficult to keep as warm as the rest of the home. A separate zone can account for those temperature differences.
- Rooms with large windows overheat: Solar heat gain can cause these rooms to become uncomfortably hot.
- Extra rooms above garages: These ares often have different temperature demands.
- Additions not served well by HVAC: An addition may have unique ductwork or greater exposure to outdoor temperatures.
- Family members fight over the thermostat: Separate zones can help minimize temperature-related conflicts.
- Sun-facing rooms become much warmer: Sun streaming through large windows, especially on the west side of a home, can make rooms uncomfortably hot at the end of the day.
Benefits of Adding HVAC Zoning
HVAC zoning benefits begin with improved comfort. Zoning can deliver even temperatures throughout your home and customized comfort settings in different rooms. It also is designed to eliminate the need to overheat or overcool some rooms to make other rooms a more comfortable temperature.
Depending on the home, zoning helps improve efficiency by reducing unnecessary heating and cooling. However, energy savings are not guaranteed, and correct system design is important.
When HVAC Zoning May Not Be the Right Choice
Zoning isn’t isn’t always the best solution for every home. Before investing in a home zoning system, an HVAC professional should check for underlying issues.
Too little insulation, air leaks, damaged ductwork and improper system design can all cause rooms to be uncomfortably hot or cold. Incorrectly sized HVAC systems can also cause issues that zoning alone cannot correct. 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 Happens During a Zoning Installation?
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 setting up motorized HVAC dampers, thermostats and new control wiring. The technician then tests each zone and calibrates the system. Installation time varies based on factors such as ductwork access, the number of zones and overall system complexity.
Is HVAC Zoning Worth It?
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 determine whether zoning is right for you is to have an experienced HVAC contractor like Farnell Heating & Air Conditioning Inc assess your home and current HVAC system. Our heating and cooling specialists will evaluate your ductwork, equipment, airflow and controls and determine the best solution.
If you’re interested in adding zoning to your HVAC system, Farnell Heating & Air Conditioning Inc can help. If zoning is right for your home, we’ll design a system that’s right for you. If it’s not the best approach, we’ll recommend other HVAC solutions we think are better suited to your home and comfort challenges. Our only goal is to make your home a comfortable, enjoyable place.
Take the next step toward a consistent comfortable home. Request an in-home estimate for zoning today.