Why Closing Vents Doesn’t Make Your HVAC System More Efficient
Professionals design comfort systems with specifics in mind, installing systems calibrated to push against a certain amount of pressure. If it has to pump air against an increased pressure, it can run more than normal or be overworked, leading to less efficiency and maintenance problems. Closing vents can cause the pressure in the system to increase. Some issues that can come from closing vents include:- Frozen coils because of overwork
- Duct leakage that wastes HVAC effort
- A cracked heat exchanger and carbon monoxide leak risks
- Mold and condensation issues in closed-off rooms, particularly in cold months
- Reduced comfort in other rooms because airflow is no longer appropriate