Really enjoyed following this build... thanks!
Related to this range exhaust article, I'm wondering where you terminated the make-up air duct (with the Cape damper installed) that you've referred to in other ProHome writeups? Did you run the make-up air duct into the kitchen near the OTR microwave somewhere? I'm curious if you tried to do some "passive tempering" of the incoming make-up air... perhaps exiting the make-up air duct up high on the wall so it could mix with ambient indoor air.
I have a similar OTR microwave in my home and currently don't have any dedicated make-up air duct. Cracking a window in the winter (in Ottawa, Ontario) for make-up air isn't my preferred long-term solution.
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