Ducted vs. Ductless Range Hoods — Which Is Better for Ontario Homes?

CFM (cubic feet per minute) determines how effectively a hood clears your kitchen. General rule: 100 CFM per 10,000 BTU of your range output. Most Ontario gas ranges are 40,000–65,000 BTU total, requiring 400–650 CFM. For electric ranges, a minimum of 300 CFM is standard. Duct diameter must also match — a 400 CFM hood needs minimum 6-inch ductwork; 600+ CFM needs 7–8 inch.

CFM Sizing — How Powerful Does Your Range Hood Need to Be?

CFM (cubic feet per minute) determines how effectively a hood clears your kitchen. General rule: 100 CFM per 10,000 BTU of your range output. Most Ontario gas ranges are 40,000–65,000 BTU total, requiring 400–650 CFM. For electric ranges, a minimum of 300 CFM is standard. Duct diameter must also match — a 400 CFM hood needs minimum 6-inch ductwork; 600+ CFM needs 7–8 inch.

Kitchen Range Hood Venting Ontario 2026 | Install Guide

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