Can I move my return air vent?
If these are truly cold air returns, then the return duct is under the floor right at that point and there is an opening into the duct at the bottom of that knee wall. So the only way that you can move the cold air return openings is if the duct runs under another wall in the same room/area.
Can you oversize return air duct?
Can an air return be too big? No, an air return cannot be too big, except in extreme cases where a closed room is temporarily under negative air pressure. Return vents maintain air pressure, filter out debris, and are critical to the efficient operation of any HVAC system.
Can a return air duct be too small?
If the return duct is too small, there are an inadequate number of return grilles or they are undersized, it can’t return enough air to recirculate back into the system. The average duct system has 25% less return air than required according to National Comfort Institute.
How much bigger should return duct be?
Generally, if you are using a Duct Sizing Chart or calculator (such as the Trane Ductulator), size the re- turn ducts for 0.05 inches/100 ft (0.40 Pa/m) based on the expected airflow through that return air duct. The total sum of air from all the returns should be at least 250 CFM/nominal ton (33 l/s per-kW).
How much does it cost to move a return air vent?
A return air drop replacement will run around $300-$400, including installation. In rare cases where a second drop needs to be added, the cost can be up to twice that amount. Sometimes, one or two individual duct runs need to be modified or added, for situations like the room addition we mentioned earlier.
How do you relocate ductwork?
Quote from the video:
Quote from Youtube video: And this little they're just simple screws that screw it all together or in sections you may pull right out and we'll remove it put in the windows. And move the duct. Over.
Should return duct be bigger than supply?
Should return ducts be larger than supply? Yes, return ducts are usually larger than supply ducts to ensure that air within the home is balanced. There are generally more supply vents in the system creating the need for return vents to be larger.
What size should the return be?
For homes that have one or two main return ducts located in a hall or a great room, those returns should be equal in size to all the supplies throughout the home. Basically the size of your duct work is determined by the size of your furnace.
How many returns are needed for HVAC system?
Your Home Might Not Have Enough Return Vents
Having several return vents (ideally one in every room, but even two or three is better than just one) creates consistent air pressure. If you have one return vent, your home is fine. Keep the doors to each room open so air can properly circulate.
How do I know if I have enough return air?
If you were to put a wet finger close to the vent that is generating airflow, you should be able to tell if there is a lot of airflow or not enough airflow. This is the simplest way to tell if you are getting enough return air. If you lick your finger and put it close to the return vents, you will feel the airflow.
Where should HVAC returns be located?
Return registers also perform best on an interior wall—not one adjacent to the outdoors. Instead, that’s where your supply registers should be, ideally under a window. Lastly, make sure the return registers aren’t too close to the supply registers because that could cause your system to work harder.
