What Size Range Hood for a 30-Inch Range?
If you have a 30-inch range, the sizing question has a clean starting point: your hood should be at least as wide as the cooktop, so a 30-inch range calls for a 30-inch hood as the baseline. Matching the width is the most important rule, because a hood narrower than the burners lets smoke and grease escape at the edges. That's exactly why a dedicated 30-inch range hood is the size most people with a standard range end up shopping for — and going one size wider, to 36 inches, only improves capture if your space allows.
Width is only half the answer, though. The other half is airflow, measured in CFM, and it's where a 30-inch hood is chosen well or poorly. Before you buy any range hood, match its CFM to your fuel type and how you cook, not to whichever model prints the biggest number on the box.
So here's the core takeaway of this guide: the right size range hood for a 30-inch range is two numbers — width and CFM. The hood should be at least 30 inches wide to match the cooktop (a little wider is even better), and its airflow should suit your fuel and cooking: roughly 300 to 400 CFM for a typical 30-inch electric or induction cooktop, or about 400 CFM for a 40,000-BTU gas range, and more for heavy high-heat cooking. Nail those two, then match the duct and the mounting height, and a 30-inch hood will genuinely clear the air. Below we break down sizing by fuel, duct and height, venting, and what reviews reveal.
What Size Hood for a 30-Inch Gas vs. Electric Range?
The width stays 30 inches either way, but the airflow depends on your fuel:
- Electric or induction (30-inch): these give off less ambient heat, so a 30-inch electric or induction cooktop needs roughly 250 CFM at minimum with all burners running, and a moderate 300 to 400 CFM suits most kitchens.
- Gas (30-inch): gas puts out more heat, so size by burner output — about 1 CFM per 100 BTUs. A 40,000-BTU 30-inch gas range points to around 400 CFM, and higher-output ranges call for more.
- Heavy cooking: frequent searing, frying, or wok cooking on any 30-inch cooktop benefits from stepping up toward 600 CFM or higher.
In short, a 30-inch hood in the 300–400 CFM range covers most everyday kitchens, while gas and high-heat cooking push you toward the upper end.
Duct Size and Mounting Height for a 30-Inch Hood
Once width and CFM are set, two more numbers finish the job. The duct should match the hood's airflow — for a 30-inch hood in the typical 300–600 CFM range, that's a 6-inch duct; reducing it chokes airflow and adds noise. And the mounting height should be 24 to 30 inches above the cooktop, high enough to clear cookware and heat but low enough to capture the rising plume. Always confirm your specific model's recommended height before you cut cabinets or drill.
Ducted or Ductless for a 30-Inch Hood?
A 30-inch hood can vent either way. A ducted setup sends cooking air outside and performs best, because it removes heat and moisture along with grease and odors. A ductless version recirculates air through a charcoal filter and returns it to the room — the answer when you can't run a duct, though it trims effective airflow, so size the CFM up if you go that route. Our full ducted vs. ductless comparison covers the trade-offs in detail.
What Reviews Reveal About 30-Inch Range Hoods
Reading buyer reviews for 30-inch hoods is most useful when you look for patterns rather than star ratings. The positive reviews tend to reward the same things: airflow that actually matches the cooktop, a low noise rating at the speed people use day to day, easy-clean stainless baffle filters, and good lighting over the burners. The recurring complaints are just as telling — "too loud" usually means an underpowered 30-inch hood run at maximum, "doesn't capture smoke" often points to a hood that's underpowered or mounted too high, and "hard to install" flags ducting or electrical that needed planning. Read this way, reviews become a sizing-and-fit checklist that confirms whether a 30-inch hood is matched to the kitchen — which comes back to the same two numbers, width and CFM.
How to Choose Your 30-Inch Range Hood
Bringing it together for a 30-inch range:
- Width: at least 30 inches to match the cooktop; 36 inches if space allows.
- CFM: 300–400 for a typical electric or induction cooktop, about 400 for a 40,000-BTU gas range, 600+ for heavy high-heat cooking.
- Duct: a 6-inch duct for typical 30-inch airflow, never reduced.
- Height: 24–30 inches above the cooktop.
- Venting: ducted outside when you can; ductless when you can't, sized up.
Running through the key questions to ask before buying will confirm the width, airflow, and venting fit your 30-inch range before you commit.
Frequently Asked Questions
What size range hood do I need for a 30-inch range?
At least a 30-inch-wide hood, since the hood should be as wide as the cooktop, and ideally a little wider for better capture. For airflow, plan on roughly 300 to 400 CFM for a typical 30-inch electric or induction cooktop, or about 400 CFM for a 40,000-BTU gas range.
What size hood for a 30-inch gas range?
A 30-inch-wide hood, with CFM sized to the burner output at about 1 CFM per 100 BTUs. A 40,000-BTU 30-inch gas range points to around 400 CFM; higher-output gas ranges or frequent high-heat cooking call for 600 CFM or more.
Can a range hood be wider than the 30-inch cooktop?
Yes, and it often helps. A hood should never be narrower than the cooktop, and going up to 36 inches over a 30-inch range improves capture at the front burners if your cabinetry and budget allow.
How much CFM does a 30-inch electric cooktop need?
Roughly 250 CFM at minimum if all burners run at once, with 300 to 400 CFM comfortable for most kitchens. Electric and induction give off less ambient heat than gas, so they generally need less airflow at the same width.
What duct size do I need for a 30-inch range hood?
A 6-inch duct suits the typical 300–600 CFM airflow of a 30-inch hood. Don't reduce the duct below the hood's outlet size — a smaller duct restricts airflow, increases noise, and traps grease.
Should a 30-inch range hood be ducted or ductless?
Ducted whenever you can vent outside, since it removes heat and moisture along with grease and odors. Choose ductless when running a duct isn't possible, and size the CFM up to offset the resistance of the charcoal filter.
