How to lower a cold air return from the ceiling for a basement rental

central-heatinghvac

I am living in the basement level of a rental unit with forced air heat. There are 9 heating vents and one cold air return, all of which are in the ceiling. The air isn't mixing very well resulting in a hot ceiling and cold floor. I would like to hack together a cheap cold air return that we can lower down to the floor. I suspect it will dramatically increase the comfort in our apartment.

Can you recommend a cheap non-permanent solution? I'm imagining a plastic flexible pipe with a standard attachment to a heating duct.

Best Answer

If you're not too concerned about aesthetics, you can use some flexible duct (or dryer duct) and a couple boots.

Use some foil HVAC tape to connect one boot to the duct on the ceiling, and then put the other boot on the ground, and use foil tape to connect the boots to the flex duct.

boot

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You can get boots that are straight, 45, 90 degrees, and horizontal or vertical, and many sizes -- the box stores all have lots to choose from.

You can also stick a grill on the bottom, just to make it look a very slight amount nicer.

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