Extractor fan exhaust

[Bob Rowlands]

I have installed cabinets in hundreds of kitchens over the last 37 years. Very few kitchens have ranges in the island that have a powered downdraft unit placed behind the stove, and ducted into the floor framing to the outside. That's what I would call an 'oddball' design. I have seen it, but it is quite rare. I'm sure those are more expensive vs. a standard over stove hood vented through a wall or the roof.

But those installs are all in stick frame houses. Yurts are different. In my view if there's a way to design the kitchen so a standard range/cooktop hood can vent through the wall or roof you'll have a more conventional system with less design and install headaches. I haven't a clue how any of that would retrofit onto yurt wall or roof framing. Wish I had better advice. Good luck.