Closing Return Air Vents In Winter

The popular notion has always been to shut off vents in rooms that you use infrequently.

Closing return air vents in winter.

Some say that the upper returns should be closed when the heat is running to circulate out the cold air and the lower returns should be closed when the a c is running to circulate out the warm air. So we ve covered the most important problem with closing vents. Open top return grill dampers and close bottom return grill dampers on all sets like this throughout the home. Try the following since it is still the winter heating season.

Allow the cold air to return to the furnace to be heated. Since cold air is heavy it will automatically flow down to the lower register. Instead it will be forced through any crack it can find in the duct work or other areas that aren t sealed properly. In the winter you want the cold air to be drawn through the return registers leaving the hot air behind.

Then switch positions on each set and run it like that for a few more days. Once winter arrives you want to have the cold air at floor level drawn into the air return system. By opening the lower registers and closing the top ones you keep hot air in and draw the cold air out. It is time to open these vents if they are closed.

Adjust return registers for summer. Blocking a return vent if one of the rooms in your house gets too warm when you turn on the furnace a good way to lower the temperature is to cover the return vent. Look at the nearest air vent in your room. Closing return air vents in the winter the ac draftshield is designed for dual system homes having a separate system for heat and a separate system for air conditioning.

The ac draftshield when used as the manufacturer suggests you isolate the entire system by covering all of the ac grills. Run it a few days like that and see if you re comfortable. When the vents are closed the air won t be able to come easily through the vent. Whether your vent is open or not the warm air is still going to try to push through to each vent.

If a particular room has a heating vent but no return vent it won t get as much hot air from the furnace because the room is already full of air that isn t going anywhere. Others say that they should always be open so the hvac unit doesn t have trouble pulling in air. But there are a few other important problems closing vents can cause including. That means your home will take longer to cool down or heat up.

The belief is that closing a vent will simply push the air onward to other parts of the home improving energy efficiency. Since cold air is so heavy it will automatically flow to the lowest level into cold air return vents. Other issues with closing vents. Closing air vents is a popular strategy for adjusting air flow in the home but it s not necessarily a good one.

Comfort issues remember a psc blower delivers less air the more vents you close. Homeowners typically close vents in an attempt to redirect air away from unused spaces.