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Old 08-11-2015, 08:50 PM   #1
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AC Filters

During our cross country trip, I found myself changing the filters on my AC units about every 10 days due to the dusty environments we were traveling. I wanted to use a home filter vice the crap already installed, so off to the drawing board.

The factory air handlers in the main living space are 6x12, a non standard size. On the fridge side of the ceiling, I made an air box to take a 12x12 filter. A quick easy mod...plus it increases the intake size, thus sucking in more air and pushing out more air... On the other side, I will either put in a 12x18 or 12x24....unsure yet though.

I started with some 1x1 and some lattice strips. I glued them together and used some finishing nails.


Then cut them to length and set overlaps so it would be a sturdy structure.


Here's a test fit.



Went inside to cut the ceiling, and taped the seams with HVAC tape.



Installed filter and cover. No I can buy a normal size filter!!


Cale
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Old 08-11-2015, 09:00 PM   #2
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One thing you had going for you was the green bottle of thought lubricant! Looks good. Was there a noticeable improvment in airflow?
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Old 08-12-2015, 01:54 AM   #3
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Quote:
Originally Posted by donzinger View Post
One thing you had going for you was the green bottle of thought lubricant! Looks good. Was there a noticeable improvment in airflow?
Yes, there was a noticeable difference in the airflow. The hole was opened up quite a bit, before the opening was greatly reduced due to the 1x2 being used as a brace. I put two 1x2 spacers above that brace and glued the frame to the ceiling and screwed a screw into each side through the spacers.

My project next weekend (not this upcoming) is to do the same thing on the other side, though I need to figure out how big to go.

I will be adding a round vent in the living area to make 5 total. Will do it between the ceiling soffit and couch slide.

Cale
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