Ducted range hoods are best for gas stoves.
- Use 100 CFM per 10,000 BTUs to size your hood.
- Baffle filters are more effective than mesh for grease.
- Install the hood 24-30 inches above the cooktop.
What to Look for in a Range Hood for Gas Stoves
Gas stoves produce more heat and combustion byproducts than electric. Venting outside is the most effective way to remove smoke, grease, and odors. Check the hood's CFM rating, which measures airflow. A general rule is 100 CFM per 10,000 BTUs of your stove's output. For a typical 40,000 BTU gas range, you need at least 400 CFM. Ductless hoods use charcoal filters to recirculate air, but they don't remove all contaminants. They are a fallback when ducting is impossible. Look for a hood with a high CFM and low sone rating for quiet operation. Stainless steel baffle filters capture grease better than mesh filters.
Ducted vs. Ductless: Which Is Better for Gas?
Ducted hoods vent air outside through a duct, which is the best for gas stoves. They remove moisture, smoke, and odors completely. Ductless hoods pass air through a charcoal filter and release it back into the kitchen. They are less effective at removing heat and humidity. If you have a gas stove, ducted is strongly preferred. Ductless can work if you have a low-BTU stove and cook infrequently. Check if your kitchen has existing ductwork. Retrofitting ducts can be costly. Consider a convertible hood that can be used either way.
Best Range Hoods for Gas Stoves by Type
Wall-mounted range hoods are popular for gas stoves because they cover the back burners well. Under-cabinet hoods are compact and fit under cabinets, but may have lower CFM. Island hoods are for stoves on a kitchen island, offering 360-degree capture. Downdraft hoods rise from the countertop, but are less effective at capturing rising smoke. For gas stoves, a wall-mounted or under-cabinet hood with sufficient CFM is best. Look for models with baffle filters and easy-to-clean surfaces.
How Many CFM Do You Need for a Gas Stove?
CFM, or cubic feet per minute, measures airflow. For gas stoves, calculate your total BTU output. Add up all burners' maximum BTUs. Divide by 100 to get the minimum CFM. For example, a 40,000 BTU stove needs 400 CFM. If you have a high-output burner, add more. Also consider duct length and bends, which reduce airflow. Longer ducts need higher CFM. A hood that's too weak won't clear smoke effectively. Too strong can be noisy and waste energy. Use the 100 CFM per 10,000 BTU rule as a baseline.
Installation and Venting Considerations for Gas Ranges
Proper installation is critical for performance. The hood should be 24 to 30 inches above the cooktop. Gas stoves produce more heat, so check the manufacturer's clearance. Use rigid metal ducting for best airflow. Flexible ducts reduce efficiency. Ensure the duct exits outside, not into an attic. If you install a ductless hood, replace charcoal filters regularly. Check local building codes for venting requirements. Professional installation is recommended for ducted hoods.