As the cooler months approach, homeowners are turning their HVAC systems from cooling to heating. In light of rising energy costs, many consider closing vents in unused rooms to save money. However, HVAC experts strongly advise against this practice.
Why Closing HVAC Vents is Not Recommended
Although it seems logical to close vents in seldom-used spaces, experts highlight potential problems. “Closing vents can lead to pressure issues, making your HVAC system work harder,” explains Micah Sherman, a virtual HVAC expert at American Home Shield. Eli Zimmer, director of Luxaire HVAC Services, adds that this pressure can cause extra strain on the system, leading to possible damage.
The Impact on Airflow
The science behind airflow is crucial. Richie Drew, vice president of Operations at One Hour Heating & Air Conditioning, states that HVAC systems are designed to balance airflow. “Disrupting this balance can result in higher pressure, ultimately damaging the system,” he warns. Furthermore, when furniture or appliances block vents, it exacerbates airflow problems and can create moisture issues.
Efficient HVAC System Functioning
Restricting airflow leads to an unbalanced HVAC system, making it inefficient. The system’s blower must work harder, which can result in increased operating costs. Bert Miskell, owner of BPM Heating, Cooling & Plumbing, explains that high pressure can also shorten the life span of the blower fan and compressor.
Potential Damage and Additional Costs
- Higher static pressure on the system
- Risk of short-cycling, where the system turns on and off frequently
- Potential for duct leaks and uneven temperatures
Alternatives to Closing Vents
Rather than closing vents, homeowners should keep them open. However, if certain areas need to be closed off, consider consulting an HVAC technician. Tim Algaushove, COO at IRBIS Air, Plumbing & Electrical, suggests installing a zoned system for better control.
Strategies for Efficient HVAC Operation
There are several best practices to enhance HVAC performance:
- Annual Service: Schedule regular maintenance to keep coils clean and drain lines clear.
- Keep Vents Open: Ensure vents are unobstructed to promote optimal airflow.
- Open Doors: Leaving doors open in unused rooms prevents heat from getting trapped.
- Change Air Filters: Regularly clean or change filters to maintain system efficiency.
- Check Seals: Monitor airflow; diminished output may indicate a torn duct needing repair.
By following these guidelines, homeowners can ensure their HVAC systems operate efficiently and effectively, maximizing comfort and minimizing energy costs throughout the cooler months.
