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for air can come in and out this may sound crazy but iam in the are you smarter than a 5th grader show -.-

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11y ago
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Q: Why do you have two return vents on the wall?
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Which vents are for cold air return wall or floor?

Cold air return vents are the ones on the wall


Can return air vents be put in the floor instead of the wall of a house?

Yes vents can be in the floor instead of the wall.


What are the air vents next to the ac vents in bedrooms and hallway?

Return air vents.........


We have two return vents in each room.One close to the ceiling and the other near the floor.do we need to close the floor vents winter or summer?

Cose the high vents in the winter and low in the summer..


Where in a room should vents be placed for central air conditioning?

In my opinion where the supply vents are located is not as important as where the return air vents are located. the supply vents should be located towards the outer walls if possible. the return air vents should be located towards the center of the dwelling if possible. every effort should be made to get the return air vents as high as possible on the wall , if not in the ceiling.Remember you are trying to get the warm air back to the a-coil so it can be pumped outside through the refrigeration lines to the condensing unit. if the ductwork is used for heating also you should put some return air vents down low to get the cool air to the furnace. This is my personal opinion and may not be everyones.


Are return vents needed in each room?

No. Doors will suffice.


Why are air vents placed on the outside wall of house?

They are on the outside wall so they can be vented to the air outside and not throught your house.


How many vents does Mt St Helens have?

It has two vents with candycanes and chocolate


Exterior plumbing stack vents should be where?

Vents should be on the highest point of the stack and preferably on the wall outside and not in ducts, this due to future maintenance and ease of installation.


Why would air only blow out the floor vents and the two outside dash vents not out the center dash vents?

The flap that directs sir to the selected vents is jammed or broken...or the switch that controls it is.


Does a direct vent water heater have to be vented into a chimney?

No, directly vents through to outside wall of building.


What do you do about not enough return vents in a house?

You will need to cut into the brickwork and install them to comply with local building regulations.