Kitchen Hood, Elba designer hood
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 Sep 28 2020, 01:26 PM
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#1
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Senior Member
7,938 posts Joined: Mar 2014 
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QUOTE(ahter12 @ Sep 28 2020, 01:22 PM) I think it's ducted properly but my original 6 inch ducting was connected to the apartment 4 inch pvc pipe. The distance from my pot and hood also standard one. You meant the apartment prepared 4" PVC for exhaust?   ahter12 liked this post
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Sep 28 2020, 01:40 PM
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#2
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Senior Member
7,938 posts Joined: Mar 2014
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QUOTE(ahter12 @ Sep 28 2020, 01:33 PM) Yup, correct. I already ask people to install reducer 6 inch to 4 inch but still not working. Maybe the ducting to pvc at celling there to high then the pvc pipe to outside the wall too long ( ard 20 feet )... Sigh, management just told me that my kitchen hood "no power" one... For 1400 m³/hour like this Elba, it require at least 7" duct minimum. I'd recommend 8".   0-400 CFM: minimum duct size of 4”, recommended duct size of 6” 401-600 CFM: minimum duct size of 6”, recommended duct size of 8” 601-900 CFM: minimum duct size of 7”, recommended duct size of 8”-10” 901-1200 CFM: minimum duct size of 8”, recommended duct size of 10”-12” 1200 CFM: minimum 10” diameter duct, recommended duct size of 12” I cannot find in the manual what is the size recommended  However, reducing the size it the worse thing you can do unfortunately  1400 m³/hour = 824 ft³/minute (CFM) ahter12 liked this post
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Sep 28 2020, 01:50 PM
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#3
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Senior Member
7,938 posts Joined: Mar 2014
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QUOTE(ceo684 @ Sep 28 2020, 01:40 PM) Maybe u can try remove carbon filter at the exhaust vent hole there and see if it helps? And hopefully the duct run is not made of a lot of 90 degree bends. Turbulence is another way in which airflow is restricted. The main cause of turbulence is 90 degree elbows in ducts. Air doesn't flow like a liquid Yes carbon filter greatly reduce airflow and why bother since the air goes outside anyway   ahter12 liked this post
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