Kitchen hood fans are, as a rule, not adequate for torch work. The stainless steel is nice, tough. I think that 8 inch duct from the hood is better than 6 inch - it'll be quieter with the same air flow. I'd buy the hood and add baffles to the back and sides, remove the fan that comes with it and invest in a good squirrel cage fan and ductwork to get it right the first time around. Don't buy anything that's described as a 'booster fan'. Revamping it after you find that the installed fan is inadequate will be a PITA. I spent a lot of time and effort assembling my ventilation system and it was worth every minute.
Robert
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Robert Simmons
(Former) Director for Bead Donations
Beads of Courage, Inc.
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