Kitchen Chimney vs Exhaust Fan: Which One Should You Buy in India?

Short answer: an exhaust fan ventilates a room, a kitchen chimney captures smoke and grease at the source. If you cook Indian food daily — tadka, deep frying, tawa roti, fish — the chimney is the one that keeps grease off your cabinets, and an exhaust fan will not get you there no matter how big you buy. If you cook light, rent your flat, or already have a window right beside the hob, an exhaust fan at ₹650-₹1,700 does the job that a ₹10,000 chimney would do only slightly better. The real question is not which device is stronger. It is whether your kitchen layout and your cooking style justify roughly 10x the spend.

Almost every guide on this question is published by a company that sells chimneys. This one is not. We track live prices across Amazon, Flipkart and the rest every day, so the numbers below are price bands we actually see on the listings we publish — not a brochure figure.

The one-line difference that decides everything

Position. That is the whole thing.

A chimney hangs directly over the burners, so oily smoke enters the hood before it has a chance to spread. An exhaust fan sits in a wall or window somewhere else in the room, so the smoke has to travel across your kitchen — past your cabinets, your tiles and your ceiling — before it reaches the fan. Whatever sticks on the way, stays.

That is why a sticky yellow film builds up on cabinet doors in kitchens that only have an exhaust fan, even when the fan works perfectly. The fan is not failing. It was never designed to catch grease. It is an air-changer, not a grease-catcher.

Suction: the numbers are not comparable, and that matters

Chimneys sold in India are rated in cubic metres per hour of airflow, and the 60 cm models most people buy sit around 1,200-1,600 m³/hr. A 150 mm exhaust fan moves a small fraction of that, and it moves it from wherever it happens to be mounted.

Two things follow from this that the spec sheet does not tell you:

• A higher chimney rating is not automatically better for you. Suction is only useful if the hood is mounted at the right height — roughly 65-75 cm above the cooktop for a gas hob. Mounted too high, a 1,600 m³/hr chimney underperforms a well-placed 1,200 m³/hr one.
• An exhaust fan's rating is nearly meaningless without a cross-draught. A fan pulling air out of a sealed kitchen with no inlet is fighting the pressure it creates. Open a window or a door on the opposite side and the same fan suddenly works.

What each one actually costs — purchase, install, and per year

This is the part the brand blogs skip, and it is the part that decides the purchase.

	Exhaust fan	Kitchen chimney
Typical street price	₹650-₹1,700 for 150-200 mm	₹7,500-₹17,000 for a 60 cm auto-clean
Installation	DIY or ₹300-₹800 for a wall cut-out	Usually free with the unit; ducting extra
Power draw	Around 20-30 W	Motor plus lights; higher, but used in short bursts
Yearly upkeep	Wipe the blades	Filter cleaning; auto-clean models reduce this, they do not remove it
Landlord problem	Minimal — often already installed	Needs a wall cut for ducting, and drilling

Two practical consequences:

If you rent, the chimney maths changes completely. A ducted chimney means cutting a hole in someone else's wall and leaving a ₹10,000 appliance behind, or paying to uninstall and reinstall it at the next flat. Ductless (recirculating) chimneys avoid the hole, but they rely on carbon filters that need replacing and they push warm filtered air back into the room. Plenty of renters buy a good exhaust fan and spend the saved money on a decent cooktop instead. That is a defensible choice, not a compromise.

If you own, the chimney is an appliance, not a gadget. Budget for the duct pipe and the cut, not only the sticker price. Ask specifically whether installation includes ducting — "free installation" frequently does not.

The honest decision table

Your situation	Buy this
Daily Indian cooking, deep frying, own the home	Chimney, 60 cm, ducted
Daily cooking but rented flat, no wall to cut	Good exhaust fan near the hob, plus a cross-ventilation window
Small kitchen with a window beside the cooktop	Exhaust fan — the window is already doing half the work
Mostly reheating, boiling, light cooking	Exhaust fan
Open kitchen joined to the living room	Chimney, no debate — an exhaust fan sends the smell into your sofa
Kitchen already has a chimney, but still smells	Add an exhaust fan; they are not rivals

That last row is the answer most guides refuse to give because they are selling one of the two. A chimney handles grease at the hob. An exhaust fan changes the air in the room. In a closed Indian kitchen where three people cook and nobody opens a window, running both is common and sensible — and the pair together still costs less than the top-end chimney alone.

Sizing without over-buying

• Cooktop width decides the chimney, not kitchen size. A 4-burner hob wants 60 cm; a 5-burner or a wide cooktop wants 90 cm. A 60 cm hood over a 90 cm hob leaves the outer burners uncovered, and that is exactly where the grease escapes.
• Filterless / auto-clean is worth paying for if you fry. The maintenance you skip over five years is the actual product, not the marketing word.
• BLDC motors matter more for noise than for the electricity bill. A chimney runs perhaps an hour a day; the savings are modest. The reduced noise at full speed is the reason to pick one.
• For exhaust fans, 150 mm suits a bathroom or a small kitchen; 200 mm suits a regular kitchen. Oversizing a fan in a small sealed room mostly adds noise.

Where to actually buy at a sane price

Both categories discount heavily and constantly, which is precisely why the list price is a bad guide. Chimneys in particular carry inflated MRPs — a 60-65% "discount" on a chimney is normal, not a flash sale, so compare street price against street price and ignore the struck-through number.

Live examples of each on our site right now:

• Faber 60 cm T-shape kitchen chimney — the mainstream 60 cm shape most 4-burner kitchens need
• Crompton QuietPro Plus BLDC 60 cm chimney — BLDC, for the noise reason above
• Atomberg Studio 150 mm BLDC exhaust fan — the quiet end of the fan range
• Havells Ventil Air DX 200 mm exhaust fan — 200 mm, for a regular-sized kitchen
• Singer Venti-Q 150 mm exhaust fan — budget pick under ₹1,000

If you have already settled on one category, we have a deeper guide for each: best exhaust fans for kitchen and bathroom and best kitchen chimneys under ₹15,000. Everything currently discounted across appliances sits on our offers page.