Question about Broan-NuTone 643604 Kitchen Hood
We can hear the bird inside the house and close to duct work. Is there an easy way to take out parts of the fan to get to the bird. We have a Broan 36 inch hood 643604.
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Posted on Jan 02, 2017
SOURCE: Damper need for Broan Range Hood
I called tech support at Broan and was told they recommend two dampers in cold climates ...one at in the wall cap and one on the unit. They make the damper,
(#BP87-7"), that attaches to the round duct plate that comes with the hood. Strangely the unit does not include a round damper and the seller LOWES did not have it, also checked Home Depot,.
The Tech said they can't get stores to stock it. I checked at a local supplier of all kinds of plumbing, heating, and cooling supplies and they only had basic 7" dampers which, I was told would probably be too heavy, and be manual. I ordered it through Amazon/True Value ($11.56 w/ shipping, shipping more than cost of damper). Tech indicated that the 2nd (unit damper) is optional and may not be needed if in a warm climate. I would suggest that Broan include the $5.00 item in their unit or at least sellers stock it.
Posted on Jun 28, 2008
I'm Harvey the Master Plumber.
Your problem is: You are looking for a high quality roof mounted termination vent cap for 8" O.D. round ducting for your Jenn-Air downdraft Stove Top/Convection oven. The reason for the 8" ducting is that you are using insulated stove piping out of the wall of the house into a cold porch then up through the roof. You have come across a Broan Vent Cap that will accommodate 3-1/2" by 10" rectangular ducting and/or 8" O.D. round ducting. The problem with this Broan unit is it has an aluminum flapper that has no counter resistance mechanism to keep from readily flapping open and shut during weather related wind events. Is there something better out there? You found us through a Jenn-Air link. Help!
An 8" B-vent cap should work fine. Can be purchased at any plumbing supply. Just make sure you attach it with screws.
Feel free contact me again!
Please give me a rating here at fixya.com before you sign off
Harvey your Master Plumber
Posted on Oct 14, 2008
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