It’s always that one room. Maybe it’s on the second floor. Maybe it’s in a finished basement. It’s cold all the time no matter what you do. You open the door to the hallway. You double-check the air vents. Finally, you crank up the heat. Now, that room is still cold, and the rest of the house is like a hot sauna.
Many Auburn 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.
Understanding HVAC Zoning Systems
HVAC zoning systems split a home into individual comfort zones. Each zone has an individual thermostat. Motorized dampers inside the ductwork control how much conditioned air reaches each area.
A zone control system for your HVAC allows you to set different temperatures for specific areas of your home. Instead of treating the entire house as one space, the precise temperature control with a ducted zoning system creates customized 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 is well suited for HVAC zoning.
To decide if zoning is a match for your home, a professional evaluation should look at several important factors:
- Home duct layout: Ducts must be able to support separate zones.
- Current equipment: Some HVAC systems work better with zoning controls than other systems.
- Blower strength: The blower must be strong enough to accommodate airflow changes as the zoning dampers adjust.
- Age of your system: Older equipment may not have the controls needed for a zoning system.
- Control board compatibility: The equipment must be able to communicate properly with the new controls.
- Ductwork access: Technicians need access to the ductwork to install dampers and wiring.
- Number of zones: More zones may require a more involved installation.
An HVAC professional should assess your HVAC system before determining whether zoning is appropriate.
7 Reasons Your Home Might Benefit from Adding Zoning
If your home has these common comfort problems, it may be well suited to zoned heating and cooling:
- Upstairs stays hotter than the ground floor: Multi-story homes often have different heating and cooling demands. Zoning can help deliver conditioned air to the areas that need it most.
- Finished basements stay cold: Because they are below ground, basements are often colder than main floor and upper story rooms. A separate zone can send extra warm air to the basement without affecting comfort on other floors.
- Rooms with large windows overheat: Solar heat gain can increase the temperatures in these rooms.
- Extra rooms above garages: These ares often have can be difficult to keep comfortable with a traditional, non-zoned HVAC system.
- Additions never stay comfortable: An addition may have different ductwork, insulation or sun exposure.
- Family members prefer different temperatures: Separate zones can reduce thermostat disagreements.
- Sun-facing rooms become much warmer: Sun streaming through large windows, especially on the west side of a home, can heat up a room quickly on sunny afternoons.
What Are the Benefits of Adding HVAC Zoning?
HVAC zoning benefits begin with improved 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 check for underlying issues.
Poor insulation, air leaks, damaged ductwork and improper system design all can make rooms to be too hot or too cold. Incorrectly sized HVAC systems 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 more appropriate solutions than adding zoning controls.
What Happens During a Zoning Installation?
Professional HVAC zoning installation begins with a thorough home evaluation that includes airflow testing and 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 the individual zones and adjusts the system. Installation time varies based on duct accessibility, number of zones and system complexity.
Is HVAC Zoning Worth It?
If your upstairs is often hotter than downstairs or your home has other stubborn comfort differences, zoning could be a worthwhile option. HVAC zoning cost in your home depends on factors such as the number of zones, ductwork modifications and controls.
The best way to decide if zoning is right for you is to have an experienced HVAC contractor like Forster Heating evaluate your home and existing equipment. Our team members will assess your ductwork, equipment, airflow and controls and recommend the best solution.
If you’re thinking about adding zoning to your HVAC system, Forster Heating can help. If zoning is right for your home, we’ll recommend a system that’s right for you. If zoning isn’t the right fit for your home, we’ll recommend other HVAC solutions we think will better solve your comfort challenges. We just want you to be comfortable.
Take the next step toward a more comfortable home. Request an in-home estimate for zoning today.
