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Question about high cfm kitchen hood blowers: will I destroy earth with this setup?
Posted on 10/20/19 at 12:27 pm
Posted on 10/20/19 at 12:27 pm
I ordered a 900cfm hood/remote blower for my new house. It was delivered with the hood in one box and the blower in another. I took the hood out of the box and noticed it was heavy. Upon further investigation I discovered that the hood also has a 900cfm blower installed. So I have 900 + 900 in line. Can these be installed like this? If I run both do I run the chance of creating a black hole that sucks all of earth matter in? Or should I just play it safe and remove the internal one?
Note: I do have makeup air installed as well.
Note: I do have makeup air installed as well.
5
Posted on 10/20/19 at 1:06 pm to Coon
I have 1200 cfm over my stove and it keeps up with a stir fry. Is your house tightly sealed? You may need some make up air to account for all that outflow.
Posted on 10/20/19 at 7:13 pm to Coon
That’s not ideal like a 2 stage hood 900-1200 should be plenty but 1800 you probably will need make up air
Posted on 10/20/19 at 9:11 pm to Coon
Ours is too powerful. It can actually reverse air flow from our chimney so we can't run it while burning a fire, or else the house will fill up with smoke.
Posted on 10/20/19 at 10:02 pm to Coon
Also building currently and starting to looking into what is needed plus a “lil bit extra”. What is make up air?
Posted on 10/21/19 at 5:07 am to AEXLSUTIG
You need to run it by your hvac guy. I’m building and my entire system was engineered by the hvac company. I have a braun professional hood vent and they adjusted the hvac system to accommodate the cfm of the hood vent.
Posted on 10/21/19 at 6:50 am to Coon
I don't think 900 cfm fans inline are going to flow much more than 900 cfm, the second one is going to act like a duct booster but in too close proximity they are going to impede each other in terms of air flow. If yours is a conventional duct setup then only one fan should be needed, 900 cfm is plenty unless you or the wife like testing the smoke point of everything you cook.
Posted on 10/21/19 at 8:00 am to Clames
I was kidding on running them in-line. In need two more hoods (garage kitchen and outdoor kitchen) and I think I can buy a hood with no blower and just drop the internal blower in one of those. Windfall for coon.
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