DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > HVAC > Hvac Rectangular Stack Inside Wall


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Old 01-02-2017, 12:41 AM  
Jeffh
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Yes, a 2x4 near the bottem plate would work to raise the duct up. Id say about 4-6" to top of new 2x4 from finished floor height.


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Old 01-02-2017, 03:52 PM  
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As far as height , what's the floor going to be ? Carpet / hardwood ect , and how deep will it be ? Figure your grill on the wall will be an inch lower than the square opening . How tall is your trim ? If it's to low you may be into the baseboard trim is all.

I tried searching the Web quick and couldn't locate the straps . Basically it's a 1" strip of metal , just a heavy guage like 18guage.

I personally like oval wall stack , easier than slip and drive .
I am planning on installing ceramic tiles in the new future, and since it is a slab there would be no backerboard. Baseboard: I don't know exactly but it should be basic type on the short size/side of the spectrum.

I am also planning on wrapping the rectangular stack with reflectix type insulation. I saw some old one wrapped in a white (probably asbestos) type of thing.


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Old 01-02-2017, 03:59 PM  
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Fill the space between the studs and the boot at the bottom , screw the boot to it and you will have something to screw the grill to.

Just a flat piece of sheet metal long enough to reach both studs screw in place,

I like to lift them so the floor molding goes below.
By boot you mean the stack head where the register/grill will be attached to? How about the boot that connects to the ductwork above in the attic? I may not have enough room to screw it up there..

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Old 01-02-2017, 04:12 PM  
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Yes (I was talking about the bottom and higher up see what they did in this photo.
Or you can use plumbers strap.
https://www.homedepot.ca/en/home/p.a...000115951.html
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Old 01-02-2017, 08:02 PM  
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Ovals are nice but every time I have had to work on them, I have had to get the boot made, nobody has a pattern for it..
Hey friend ! Really , pretty common here . Not that I would buy from the depot , but ...http://m.homedepot.com/p/SPEEDI-BOOT...6-WS/202541987
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Old 01-02-2017, 08:04 PM  
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I am planning on installing ceramic tiles in the new future, and since it is a slab there would be no backerboard. Baseboard: I don't know exactly but it should be basic type on the short size/side of the spectrum.

I am also planning on wrapping the rectangular stack with reflectix type insulation. I saw some old one wrapped in a white (probably asbestos) type of thing.
HMM , tile up the wall? This is where I look to the pros of other trades . But to keep it simple , if the grill is not going to hit anything , your good .
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Old 01-02-2017, 08:09 PM  
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Hey friend ! Really , pretty common here . Not that I would buy from the depot , but ...http://m.homedepot.com/p/SPEEDI-BOOT...6-WS/202541987
It is a joke here, HVAC guys run the oval pipe down the wall and the stack head they install is a 6 x 6 x 10 box for the vent. Just had to find one a few months ago, had to send the sheet metal guy a drawing of what I wanted.
It is easier to run the rectangle down the wall with a flat cap on the bottom and just cut a hole for the grill.
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Old 01-02-2017, 08:22 PM  
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In that case your right , 10x easier . But then you need to duct it through the wall to the grill or else it blows into the wall . Not sure if that would cause a problem blowing any air into the wall cavity?
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Old 01-02-2017, 08:34 PM  
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In that case your right , 10x easier . But then you need to duct it through the wall to the grill or else it blows into the wall . Not sure if that would cause a problem blowing any air into the wall cavity?
Nope fits tight to drywall, wrap the joint between dry wall and metal with tape.
Cover with grill. I do cap the bottom of the 10x.
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Old 01-02-2017, 08:38 PM  
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HMM , tile up the wall? This is where I look to the pros of other trades . But to keep it simple , if the grill is not going tpo hit anything , your good .
The difficult part in this case it removed the old flooring and its remanants (adhesives, black mastic, etc) in order to have a proper substrate for the thinset to adhere to. But the tiles are not going up to the wall

As far as baseboard, on a second thought it seems that instead of accounting for its height of baseboard to simply eliminate the baseboard from under the grill. But I wlll make sure to pay attention to the clearance needed for the grill in any case, better be safe than sorry...



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