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I'm trying to acquire a new pro range hood. How do I reduce noise?

3 years ago

I have a great room w/kitchen that has a builder-installed 30" 250-CFM chimney style range hood that vents at at 12 ft high on the wall to the exterior. So, 1 90-degree bend to exit. It sits over a 36" Wolf Pro rangetop w/90k BTUs of output and we cook Asian food. The mission is to replace the range hood, minimize noise, and get "good" performance.

A recommended choice is the 24" deep, 36" wide Wolf Chimney solution with a Wolf 1200 CFM external blower that would be mounted on the exterior wall at 12 ft high (relative to the room, actually about 25 ft off-the-ground due to grade). 10" round ducts, possibly with a silencer (10" opening) just after the 90 degree bend. However, I have no method to assess how loud this solution will be. We're not particularly price sensitive (in the sense that we've set aside money to solve this problem and the proposed solution is under budget). We are having HVAC work done at the same time to provide makeup air through an ERV. Can anyone help us develop a process to minimize the noise of the final solution?

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