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Hi there everyone. I am a newbie here, so just want some advice on my Elba kitchen hood. There's no enough suction or totally no suction at all. Recently just installed it and up to now still can't use it. Don't know if it's the hood or ducting problems. By the way, if the celling to high, will it affect the suction power? Anyone encounter this problem before? Thank you

I think it depends on the distance from the pot and hood. 1400m3/hr is a bit better than a 30cm ventilation fan so on paper it should work. Is it ducted properly?

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?

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)

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

This post has been edited by ceo684: Sep 28 2020, 01:42 PM

Yes carbon filter greatly reduce airflow and why bother since the air goes outside anyway

Thanks for the concern, but I didn't install the carbon filter. Anyway, will ask people to check the pvc pipe on the ceiling.

last time the contractor installed too high up, so got them to bring it down to the recommended height by the manufacturer, then it is OK.

and maybe change to the normal design hood... this one (Elba) my relatives use, less than one year rosak already.

This post has been edited by ericcc: Sep 29 2020, 09:22 AM