Sad news. Vent hood is way too high.
lithigin
12 years ago
Featured Answer
Comments (14)
palimpsest
12 years agosummersucks
12 years agoRelated Discussions
Vent/hood question - what if a stud is in the way?
Comments (18)Sorry, designnov, my cabs got installed today, and I've been distracted. We didn't discover the problem until demo, and by then there was no way to put the cooktop on the outside wall. I had ordered a Kobe undercabinet hood, 720CFM (effectively) at high speed. It will be pretty powerful, so I'm hoping it will work despite the long trip. Apparently, the duct can go up, down, sideways, whatever. They try to minimize the distance and the turns, of course, since both of those reduce the flow. But you do what you have to, and this is what we had to do. My GC put in a 10x3 duct, and it's tucked so well into the basement ceiling that we didn't notice it until we looked for it. I think it will be fine. I'm cooking on induction, not gas. Hope it works out for you!...See MoreVent Hood Ducting Issue - How to deal with too many turns and screws??
Comments (22)A few very quick thoughts. Wide sweep smooth 45's & 90's will be much better than tighter radius or segmented. Two 30's would be better than two 45's and two 15's better than two 30's. An oversized end cap (eg, 8" to 10" reducer + 10" cap) will be better than a typical 8" cap. IOW, almost anything that can reduce the static pressure will help. 10" duct would help as well but might also result in too low of air velocity. MUA is Make Up Air. If you're sucking 600 CFM (with your setup about 100 CFM is more likely) out of your flat then you need to bring that same amount back in. In your case it is doubly important as too little MUA, as @kaseki mentioned, will cause your hood blower to have to work much harder against the vacuum that will be created in your house and so it's performance will go down even more. You need to do everything possible to help your hood do it's thing. You need to talk to a competent HVAC person....See MoreRange hood mounted too high? Slap me in the face, please.
Comments (38)The fundamental issue is that fan/blower flow rates are measured in open air. The result is the zero static pressure flow rate. In a hood with filter, shape transitions, duct losses, and make-up air pressure losses, the actual flow rate is likely to be in the 200 - 300 CFM region. An 18-inch x 30-inch hood has an entry area of 3.75 square feet. At 90 CFM/sq.ft., the actual flow rate called for is ~ 340 CFM, requiring a motor rated at 500 CFM or higher, depending on myriad factors. And even if this is achieved, if the cooking plume is not entirely captured due to a smaller than needed hood aperture, there will still be grease, moisture, and odor escaping into the room....See MoreRange hood mistake, too high
Comments (91)Now, since y'all did such a great job with my range hood maybe you can help me with two other things! I am attaching a picture of what it looks like when you walk into my kitchen. I am getting a 54 inch round glasstop to replace the kitchen table you see. I am attaching a picture of a chair that I am thinking about which is white polyurethane with brushed stainless legs. Please give me your thoughts if you think this w ill work. Also, still don't know what color to paint this Gold Room! Do I need to start a new post about these Inquiries?...See Morepalimpsest
12 years agodianalo
12 years agosummersucks
12 years agomydreamhome
12 years agopalimpsest
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12 years agofarmgirlinky
12 years agopalimpsest
12 years agoasheavenue
12 years agofarmgirlinky
12 years agoMadeline616
12 years ago
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