Hello. I'm remodeling my kitchen and excited about going from no ventilation to a ducted 30" wide under cabinet rangehood vented to the outside. I will be venting up about 3' to the ceiling, 90 degree turn to the right for 3', then a 90 degree turn to the left with a 9' straight run out the side of the house.

I'm planning on buying a 30" Electrolux Icon dual fuel pro style range with 60,000 btu rating.

My questions are:

1. Does increasing the depth of the hood from 21" to 24" make that much of a difference?

2. What size duct and CFM should I look for? 7" round, 8" round or 10" round? 600 CFM, 850CMF, 1000 CFM

So with my setup should I be more concerned with range depth, capture area, CFM, or duct size?

I like the Zephyr typhoon 850 CFM 7" duct, but am concerned it is a bit too shallow (21") and doesn't have a large amount of capture area.

Any advice would be appreciated.

Dave