![]() ![]() Well-sealed ducts can lead to some increase in airflow in other rooms. Closed Vents Increase PressureĬlosing the vents raises the air pressure inside your duct system. Rather than increasing the comfort of your home, closing the vents detract from it and even raises your energy consumption. As a result, some areas in your house don’t get the cooling or heating they need. Instead, the air you want to redirect into the rooms you use gets lost through the duct system. It’s a myth that closing the vents helps other areas of your home get more conditioned air. Does Closing Vents Help Other Areas of the House? ![]() You don’t want to operate a defective heat exchanger because it can cause carbon monoxide to seep from your system. In fact, it does the opposite, and it poses additional risks, too.Ĭlosing the vents decreases the return airflow, which can cause the heat exchanger to overheat, damaging this expensive component of your HVAC system. Does Closing Vents in Unused Rooms Help Airflow? When the pressure increases, more air leaks out, forcing your furnace to work harder, which hikes up your energy bills. Now, almost all ducts have some leaks, leading to average energy losses of around 20-30% of the air that flows through the ductwork. This raises the pressure inside your duct system. What it does is to force the air coming from the furnace through fewer exits. Does Closing Vents Save Energy?Ĭlosing the air vents won’t cause your HVAC system to run less. Closing supply vents also cause added pressure in the ductwork, causing more air to leak into areas that don’t need conditioned air. The added stress can lead to leaks allowing the redirected air to escape to unconditioned spaces of your home. Well, the air does get redirected but not where you specifically want it to go.Ĭlosed vents push the air back into the ductwork, increasing the pressure within the ducts. It’s a common belief that closing the vents in one area will redirect the conditioned air to other sites. The HVAC vents in your home allow hot or cold air to flow into the different rooms of the house. How do you do that? An excellent solution exists but before we go into that, let’s look at some pertinent questions regarding airflow. Managing the airflow more efficiently would be the wiser move. However, closing the vents to those areas is not the solution and can even detract from your purpose of conserving energy. We agree, providing heating or cooling to unoccupied rooms can be a waste of electricity. ![]() Does closing air vents make other rooms colder? What happens if there is not enough return air? Is it better to have air vents on the floor or ceiling? Closing Air Vents Damages Your HVAC System ![]()
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