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Old 10-21-2014, 02:19 AM  
tractng
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Default Return air

Hello,

Just making sure it would not cause a negative effect raising the vents. I want to raise the (two inches higher) vents of the return air so I can put a larger baseboard. See pic

Thanks,
TT



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Old 10-21-2014, 05:09 AM  
bud16415
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I don’t think it will hurt a thing. What is your plan for raising them?



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Old 10-21-2014, 07:06 AM  
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That won't hurt anything.

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Old 10-21-2014, 08:47 AM  
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I did this exact modification. It won't hurt a thing.

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Old 10-21-2014, 10:21 AM  
tractng
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I don’t think it will hurt a thing. What is your plan for raising them?
The original baseboard was 1.5". I want to put 3.25" for the new one. Plan is to cut above drywall. For bottom, I just might fill the drywall from the piece I cut above (place a block behind it first).

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Old 10-21-2014, 10:29 AM  
bud16415
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Is there tin ductwork behind the grill?

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Old 10-21-2014, 02:44 PM  
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Wouldn't it be easier to notch the baseboard?

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Old 10-21-2014, 03:41 PM  
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Is there tin ductwork behind the grill?
Cold air returns usually just open into the cavity, He may find a 2x4 above if they cut a stud or just blocking for firestop, he can just remove whatever is there and add blocks back in.
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Old 10-21-2014, 03:50 PM  
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Cold air returns usually just open into the cavity, He may find a 2x4 above if they cut a stud or just blocking for firestop, he can just remove whatever is there and add blocks back in.
I have to check out more new houses I guess. In my old places they are still in the floor and lined in steel.

I hate to say it but I think I would have cut out the trim too. Uggggg


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Old 10-21-2014, 03:57 PM  
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Now the close the cavity below with some stuff that looks like silver cardboard and cut out the plate and floor for these vents, Yeas ago that card board was metal but they have been doing that way since the fifties that I know about.
What it like is when you frame the hole with 3/4' x 2" stock and the frame that with the base board. If I can find a photo I will post it.



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