need wall cap for pro range hood

last year

Spent some time looking into this but it’s so mixed without a clear guidance. What does everyone recommend for an external wall cap in the northeast to vent out a pro range hood pushing 800cfm? Needs to be 10”

I’ve looked at luxury metals, famco and broan (louvre design) but am having a hard time deciding on both look and function. Any suggestions really appreciated.

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Comments (10)

PRO
Minardi
last year
Go to a HVAC supply house. This isn't found on vent hood site, and it isn't brand specific.
O K
Original Author
last year
Is something like a famco or luxury metals sufficient?
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PRO
Minardi
last year
last modified: last year
This is HVAC. Go to a HVAC supply house. Why insist on overpaying, and over complicating? Your GC should know of all the local supply houses. Or, at least his sub should.
O K
Original Author
last year
Valid point, need to find one. GC made it seem like I need to source so haven’t looked into local thinking maybe it’s an issue.
wdccruise
last year
How about his RDP Hooded Wall Vent with Screen and Damper? Owners seem to like it and it has a damper and screen.
kaseki
last year
Also, if the wall cap is more than a couple of feet from the hood (which itself should have a damper), a damper should be used close to the wall cap.
O K
Original Author
last year
It’s a very short run - just about a 10”-15” rise to an elbow and out the back wall. In either case I intend on getting the cap with its own damper on the outside just for the extra piece of mind. Called a local hvac house and they seem to have something in stock so will run over and see what they’ve got.

@kaseki - I’ve not been on this board for long and only started browsing now with the project but are you an engineer or an hvac specialist because I see you have a wealth of knowledge on the topic and quite the authority following. Just curious as I find individuals like your self very few and far between which is challenging when trying to get answers. Everyone’s got the “I’ve done it a million times”.
O K
Original Author
last year
That RDP cap is a knock off from famco and is the exact one I was looking at. They don’t have many specs but I imagine with a wide mouth like that in a 10” diameter it should be well positioned for the output of the vent.
kaseki
last year
I are an engineer (except perhaps to the National Society of Professional Engineers). My educational field was electrical, not HVAC, but basic engineering principles can operate across fields. I had to learn this stuff for my own kitchen renovation (ca. 2008 - 2012). I was "triggered" by a Vent-a-Hood salesman's spiel. One may need a thick skin (introversion) to hang around for a long time.

For the big picture, it can be helpful to review commercial literature. This is the best I've seen. The first dozen of so pages should be sufficient:

https://www.tagengineering.ca/wp-content/uploads/2015/02/KVSApplDesign_catalog.pdf
O K
Original Author
last year
Wowza that’s some heck of an article. Definitely makes sense.