Suction power (m³/hr)
Air volume moved per hour.
Why it matters
Rule of thumb: kitchen volume x 10 air changes. Most Indian kitchens need 1000–1400 m³/hr.
What to check
Quoted figures are free-air; real ducted performance is 20–30% lower.
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Home appliances
Indian cooking makes heavy oil smoke, so undersized suction leaves sticky walls. But over-suction in a small closed kitchen just makes noise and pulls conditioned air out.
Quick answer
Suction 800–1200 m³/hr for 3–4 burner stoves.
Ducted is better than ductless for Indian cooking.
Baffle or filterless for easy cleaning.
Keep duct length under 3 m.
In the shop
Read these off your phone at the counter. The answer tells you more than the price tag.
1.“What is the suction in m³/hr, and what size kitchen is that meant for?”
A good answer: 1200+ m³/hr for heavy frying and daily cooking. They should ask your kitchen size first.
2.“Auto-clean or baffle filters — what is the yearly cleaning cost?”
A good answer: A rupee figure per service. Filterless chimneys still need oil-collector cleaning.
A few questions about your situation, not about the product.
Add one short need not covered above.
Answer all 3 questions to see the spec sheet to shop with.
The sticker price is one part of owning a kitchen chimney. Adjust the numbers to your own usage and tariff to see the electricity cost a star rating actually translates to.
Units per year
99 kWh
Cost per year
₹792 (≈$9.50)
Cost over 5 years
₹3,960 (≈$48)
Often more than the price difference between two models.
Filter cleaning affects airflow more than motor wattage does. Estimates only — actual consumption varies with ambient temperature, settings and unit condition. USD values are approximate.
Every new appliance already carries a brand warranty. An extended plan or AMC only adds value where it covers the parts that actually fail, with on-site service in your city — so read the cover, not the discount.
Ask these five questions
Usually not covered
Rule of thumb: a plan is rarely worth it if it costs more than ~15% of the product price, if the item is cheap to repair locally, or if the brand's own service network in your city is already strong.
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Buy it locally
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Air volume moved per hour.
Why it matters
Rule of thumb: kitchen volume x 10 air changes. Most Indian kitchens need 1000–1400 m³/hr.
What to check
Quoted figures are free-air; real ducted performance is 20–30% lower.
Whether smoke goes outside or is filtered and blown back in.
Why it matters
Ducted is far more effective for Indian tadka; ductless only helps with mild odours.
What to check
Duct length and bends kill performance — keep it under ~3 m with one bend.
How grease is separated from air.
Why it matters
Baffle filters handle oily Indian cooking; mesh clogs fast; filterless uses a spinning separator and needs oil-collector cleaning.
What to check
Mesh filters need washing every 2 weeks and are the top cause of 'weak suction' complaints.
60 cm vs 90 cm width, mounted 65–75 cm above the hob.
Why it matters
Chimney should be at least as wide as your hob; too high and it captures nothing.
What to check
4-burner hob = 90 cm chimney. 2–3 burner = 60 cm.
Loudness at full speed and whether it heats oil off the surfaces automatically.
Why it matters
Over 62 makes conversation hard; auto-clean saves a filthy annual job.
What to check
Auto-clean still needs the oil collector emptied monthly.
Basic wall-mount ducted units to auto-clean filterless islands.