I EDITED THIS WITH MORE INFO
I have the CaptiveAire specs at the office. CaptiveAire direct drive upblast, model DU50HFA, 1000 CFM, ESP 0.800, RPM 1399, HP 0.50, 230v, FLA 3.5, discharge velocity 380 FPM, weight 81 lb, sones 13.9. It will be wall mounted on the exterior of the house.
My local restaurant supply place helped me spec it.
The hood is 5’ wide but only 33” deep and “low profile” so it won’t capture as well as if it were deeper and full height. The leading edge of the hood is going to be about 72" above the floor and about 40" above the range, and vertically only about 3" further from the wall than the range. Thus when hot greasy air rises and spreads from my wok on the front burner, much of the plume will miss the hood, unless there's enough airflow to pull it in.
Pulling through 12” duct, two elbows and 6’ horizontal run. Drawing of hood below:
https://www.captiveaire.com/CATALOGCONTENT/HOODS/BD2/SubmittalDrawing.asp?img=drawings/bd2%20iso
The range is 36” and 130,000 BTU and I told the place I wanted the ability to switch to a larger range or add a second piece of cooking equipment later. I have a fantasy of someday adding a wok range next to the main range.