Is a 900 cfm hood enough for this situation?
I bought a 36" Wolf AG range with four 16,000 btu burners and a 16,000 btu charbroiler. I don't know if we will use the charbroiler, as we grill outdoors year round (bought a floor model or would have skipped that feature). We have a 10' ceiling over the range, but there is no second floor or attic above the ceiling. The distance from the bottom of the hood to the top of the roof is a straight run of less than 5'. If I have read other posts correctly, it appears long runs and bends reduce efficiency, so higher cfms are needed? I know 1000+ cfm is usually recommended for a range with grill, but I wonder if I need it with such a short, straight run.
My other option is to purchase a higher cfm exterior blower, but both the unit and installation will cost more, and our GC just discovered major plumbing issues in our slab so I need to watch costs very carefully. I don't think a roof mounted blower will be much quieter in our case than an internal blower given the 5' distance, but please let me know if that is an incorrect assumption.