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August 1, 2009

Duct Work Cover


Ever looked at one of your floor ducts and thought about what would happen if you accidentally dropped something important down there?

I have.

Most likely because there's one right next to my tower-of-treadmill-power to the left of my workspace (see photo in upper right of this page).

So this item might just make its way here for a look-see.

From the website:


Duct Work Cover

With these magnetic sheets on top of the vents, paper, jewelry, food and just about everything else won’t be able to slip through.

Keep debris (and valuables) from tumbling down the duct work with these protective magnetic covers.

When “stuff” falls into the vents it accumulates and decreases furnace efficiency.

Easy to use — just place atop vents.

10¾” x 5” — trim for a custom fit.

Washable and reusable.

Won’t hinder airflow.


Three for $14.95.

August 1, 2009 at 09:01 AM | Permalink


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Technically, that is a diffuser (aka a register or a grill; not a duct) to either supply air from or return air to an air handler (the air conditioner and/or a forced air furnace.) I'm with Moe on "won't hinder airflow" --this will definitely hinder flow. Google 'manual t' for the science of diffuser design. This will reduce flow, possibly cause noise, and reduce distribution efficiency. Enough of these would choke the air handler's motor and reduce it's life due to increased heat. You may even trip the high-limit switch on the furnace if enough air is not circulated through the heat exchanger (similar to a really dirty furnace filter.)

But it may keep some things out of your ducts (the metal tubes just beyond the diffuser.) Why not just periodically lift the diffuser (it should pull right off, but there may be a couple of screws) and retrieve your post-its or what-nots?

Posted by: marshall | Aug 2, 2009 1:19:31 PM

Oh and Jo, it's a furnace duct, some are in the floor, some in the wall, some on the ceiling. Don't you have holes?

Posted by: tamra | Aug 2, 2009 4:16:09 AM

OK, seriously, and I'm not kidding about this, I need this thing, cuz I've been worried about the hamster. When I let her run...and I do...cuz she loves to run....and well, you know, those little critters can slip through anything! Problem solved!

Posted by: tamra | Aug 2, 2009 3:29:44 AM

Why the hell do you have holes in your floor?? what is a floor duck??? does everyone have holes in thier floor? I'm baffled!!

Posted by: jo | Aug 1, 2009 4:41:03 PM

Right, "won't hinder airflow". That thing will absolutely hinder airflow more than anything that could fall through a normal vent.

You would have to drop a stuffed animal down the vent in order to block more air than that thing.

Posted by: Moe | Aug 1, 2009 12:26:15 PM

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