Your Range Hood Is About to Work Harder Than It Has All Year

Something shifts in the kitchen in September. The grill starts cooling off, the oven starts warming up, and dishes that take three hours instead of thirty minutes come back into rotation. Braises. Roasts. Big pots of chili. The first pie of the season.

Which means the hardest-working appliance in your kitchen for the next four months isn't your range. It's the thing hanging above it.

Why fall is when hood problems show up

Summer cooking is forgiving. Windows are open, meals are quick, and a lot of the heavy searing happens outdoors. Come fall, you close the house up and start generating serious heat, grease, and steam indoors — often for hours at a stretch. An underpowered or poorly ducted hood that felt fine in July suddenly announces itself: lingering smells the morning after, a faint film on the cabinet doors nearest the range, a smoke alarm that goes off every time you sear a steak.

None of that is bad luck. It's almost always a sizing or ducting issue that finally has enough load on it to become obvious.

Getting CFM right (without overshooting)

CFM — cubic feet per minute — is the airflow rating on a hood, and it's the number most people either ignore or wildly overestimate. Two simple ways to land in the right range:

For electric ranges: plan on roughly 100 CFM for every linear foot of cooking surface. A 36-inch electric range wants about 300 CFM at minimum.

For gas ranges: add up the BTU output of all burners and divide by 100. A 60,000 BTU gas range points to about 600 CFM. Professional-style ranges push that higher fast — which is why a serious range and a modest hood are such a common mismatch.

Bigger isn't automatically better, though. Anything over roughly 400 CFM in a tightly sealed home can pull enough air out that it creates negative pressure — which can backdraft a water heater or fireplace. That's a real safety consideration, and it's usually solved with a make-up air system. Worth a conversation with your installer before you buy the biggest hood on the shelf.

Size and placement matter as much as power

A hood should be at least as wide as your cooking surface, and ideally three inches wider on each side. Smoke and steam don't rise in a tidy vertical column — they billow. A 30-inch hood over a 36-inch range will always feel like it's losing the fight, no matter what the CFM says.

Mounting height is the other half of it. Most wall-mount hoods want to sit 28 to 36 inches above the cooking surface. Too high and capture drops off sharply. Too low and you're bumping your head and risking heat damage. If you're browsing range hoods, check the manufacturer's specified range — it varies more than you'd think, especially with island and insert models.

Ducted beats ductless, almost always

A ducted hood sends grease, moisture, and odors outside. A ductless hood filters the air through charcoal and returns it to the room. Ductless has its place — apartments, interior walls, situations where running a duct simply isn't possible — but if you can duct, duct. The difference is most noticeable in exactly the conditions fall creates: long cook times in a closed-up house.

If you already have ducting, this is a good weekend to look at it. Straight and short beats long and winding. Every 90-degree elbow costs you real airflow, and flexible foil duct costs you more than rigid metal. And check the exterior damper — if it's painted shut or blocked by a bird's nest, your hood is essentially decorative.

The 20-minute pre-season tune-up

Before the first big cooking weekend, do this:

Pull the baffle or mesh filters and run them through a hot dishwasher cycle, or soak them in hot water with a good degreaser. Grease-loaded filters are the single most common reason a perfectly good hood stops performing — and they're a genuine fire risk. Wipe down the hood interior and the fan housing while the filters are out. If you have a ductless model, check whether the charcoal filter is due for replacement; most want swapping every three to six months.

While you're at it, give the rest of the workspace a once-over. Fall cooking means more prep, more pots, and more dishes, and a sink setup that works in July can feel cramped in November. A deep basin and the right accessories make a real difference — kitchen sinks with a bottom grid and a roll-up drying rack turn into a second prep surface exactly when you need one, and our sink accessories are worth a look if yours came bare.

If you're replacing, do it now

Hood replacement is one of the least disruptive kitchen upgrades there is — usually a few hours, no cabinetry changes if you stay in the same width class. Doing it in September means you're ready for the season instead of cooking around a problem you already know about. Doing it in late November means eating takeout on a Tuesday while someone runs new duct.

Not sure what your range actually needs? Send us the make and model and we'll tell you what to look for. That's what we're here for.