Question about Thermador UCV36A 36" Universal Cook 'n' Vent Downdraft Kitchen Hood

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Install a Thermador UCV36 cook'n'vent

I took over as owner builder when my builder "took the $ and ran". We are installing kitchen cabs now and discovered the PVC vent pipe (which goes into the foundation and out the side of the house) is in the wrong place for the location of the downdraft unit and integral blower. The vent is actually under the electrical connection panel.  I was told initially( 2 yrs ago when I bought the downdraft cook'n'vent)  there could be no bends in the exhaust fan route or it would change the effectiveness.  Does anyone know if it is ok to put a bend in the connection to the vent? Or do I need to redo my kitchen cabinets? Thanks

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I have three 90s on my downdraft unit - 90 down from unit into slab, 90 out from slab to outside, then 90 down again. If you are talking a 6" or 8" dia vent it should not make a difference at all.

Posted on Jan 07, 2009

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Hi schmidt_rich,

I'm Harvey the Master Plumber.

Your question is: You took over as owner builder when your builder "took the $ and ran". You are installing kitchen cabs now and discovered the PVC vent pipe (which goes into the foundation and out the side of the house) is in the wrong place for the location of the downdraft unit and integral blower. The vent is actually under the electrical connection panel. You were told initially( 2 yrs ago when you bought the downdraft cook'n'vent) there could be no bends in the exhaust fan route or it would change the effectiveness. Does anyone know if it is ok to put a bend in the connection to the vent? Or do you need to redo your kitchen cabinets?

I can syphathise. I have had to deal with this same problem. I have found that one ell will not degrade the effectiveness enough to notice. If you need more then you may need to adjust cabinets.

Feel free contact me again!
Please give me a rating here at fixya.com before you sign off
Thank you,
Harvey your Master Plumber

Posted on Sep 27, 2008

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