Is Citi Cool an authorized Daikin dealer in Delhi NCR?

Yes. Citi Cool Corporation is an authorized Daikin dealer and has been recognized as the #1 HVAC Dealer in North India by Daikin India. We are also an authorized O-General (Fujitsu) dealer serving Delhi, Noida, Gurgaon, and the wider NCR.

What areas does Citi Cool serve?

Citi Cool serves all of Delhi NCR including Delhi, Noida, Greater Noida, Gurgaon, Gurugram, Faridabad, and Ghaziabad. We handle both residential and commercial HVAC projects across India.

What types of AC systems does Citi Cool install?

Citi Cool installs Daikin VRV systems, Daikin Split ACs, Daikin Chillers, O-General Split ACs, O-General Window ACs, O-General VRF systems, and complete commercial HVAC systems. We also provide annual maintenance contracts (AMC) and repair services.

How many years of experience does Citi Cool have?

Citi Cool Corporation was founded in 1990 and has over 35 years of experience in HVAC engineering, installation, and contracting. We have completed 1,500+ projects with over 50,000 tonnes of cooling capacity installed.

How can I contact Citi Cool for a quote?

You can contact Citi Cool Corporation by calling or WhatsApp at +91 77039 00307, or by emailing admin@citicool.in. Our team responds within 1-2 business hours on weekdays.

AC Guide · Buying

What size AC do I need for my room?

By Saheb Sareen. Updated 2026-10-29.

The answer

Buy a 1.5 ton AC for a Delhi bedroom up to 12 × 14 ft. On a top floor, buy a 1.5 ton 5 Star up to 12 × 12 ft. Above that, buy a bigger AC.¹^,³

A top-floor room needs about 21% more cooling. Its roof bakes in the sun all day.³
On a 45°C Delhi afternoon, a 3 Star loses about 11% of its cooling. A 5 Star keeps it all.⁴
A 1 ton AC will not cool a 12 × 12 ft top-floor room in summer.¹

Watch: a 1 ton and a 1.5 ton 5 Star AC in a top-floor room

A top-floor bedroom, 12 × 12 ft, on Delhi's hottest afternoon.
The sun bakes the roof. Heat keeps coming into the room.
A 1 ton AC runs at full power. It gives only about 73% of the cooling the room needs.
A 1.5 ton 5 Star gives all of it. The room reaches 24°C.

A simple drawing, worked out with our AC calculator and Daikin's method. The day is 45°C, the hottest of an average Delhi year.³^,⁴

AC size by room size and floor

	10×12 (120 sq ft)	12×12 (144 sq ft)	12×14 (168 sq ft)	14×14 (196 sq ft)
Ground floor	1 ton 5 Star	1.5 ton	1.5 ton	1.5 ton
Middle floor	1.5 ton	1.5 ton	1.5 ton	1.5 ton 5 Star
Top floor	1.5 ton	1.5 ton 5 Star	1.8 ton	1.8 ton 5 Star

5 Star means only a 5 Star of that size keeps up. A bedroom for two, with afternoon sun on the window, on Delhi's hottest day.³^,⁴

In rupees: one real example


1.5 ton 5 Star (FTKU50), our price today	₹46,400
1.8 ton 3 Star (GTKL60), our price today	₹46,600

Both keep a 12 × 12 ft top-floor bedroom cool on Delhi's hottest day. A 1 ton costs less, but it cannot.⁸^,³

Choosing an AC size: do's and don'ts

Do

Measure the room's length and width in feet.³
Go bigger on a top floor, or with afternoon sun on the window.³
On a top floor, choose a 5 Star if you want an inverter.²
Use our AC calculator for a living room, office or kitchen.³

Don't

Don't buy a 1 ton for a 12 × 12 ft top-floor room.¹
Don't buy a much bigger AC than you need. It is not efficient.⁵
Don't size by the room alone. Floor and sun change the answer.¹^,³

What does ton mean on an AC?

Ton tells you how much heat an AC can take out of a room.⁵
It has nothing to do with the AC's weight.⁵
Think of a water pump. A bigger pump empties a tank faster.

Why does a top-floor room need a bigger AC?

The roof bakes in the sun all day.³
It keeps giving off heat into the night.³
A 12 × 14 ft bedroom needs about 21% more cooling on the top floor.³
It uses more units too. See how many units an AC uses in an hour.⁶

Why does a 5 Star AC keep up on the hottest days?

Daikin's 5 Star ACs keep full cooling up to 46°C outside. 3 Star ACs, up to 43°C.⁴
Above that, an AC loses about 5% of its cooling for each degree.⁴^,¹
Delhi's hottest afternoon reaches about 45°C. So a 3 Star loses about 11%.³
Is the extra price worth it? Read 3 Star vs 5 Star AC.⁷

What happens if your AC is too small?

It runs at full power almost all the time.¹
The room never reaches the temperature you set.¹
An inverter saves nothing then. Your bill is higher than the label says.¹
On a top floor, a non-inverter often makes more sense. Read inverter or non-inverter.²

Is a bigger AC always better?

No. Daikin says an AC should match the room. Too big is not efficient.⁵
A bigger AC also costs more to buy.⁸
Pick the smallest size that keeps up on the hottest day.³

See it for yourself

Daikin 1.5 ton ACs: Today's prices and stock.
Daikin 1.5 ton 5 Star ACs: Full cooling up to 46°C outside.
Daikin 1.8 ton ACs: For bigger or top-floor rooms.
AC size calculator: Any room, any floor, 50+ cities.

Questions people ask

What size AC do I need for a 12 × 12 room?

In Delhi, a 1.5 ton on a middle floor. On a top floor, a 1.5 ton 5 Star.³

Is a 1 ton AC enough for a 10 × 12 room?

Only on a ground floor, and only a 1 ton 5 Star. On a middle or top floor, buy a 1.5 ton.³

Is a 1.5 ton AC enough for 200 sq ft?

Yes, on a middle floor: buy a 1.5 ton 5 Star. On a top floor, buy a 1.8 ton 5 Star.³

Will a 1 ton AC cool a top-floor room?

Not a 12 × 12 ft room in a Delhi summer. Even the best 1 ton gives about 73% of the cooling it needs.¹^,³

How many units does a 1.5 ton AC use in an hour?

About half a unit on the label. Two to three times that on a top floor. Read the full guide.⁶

Does the city change the AC size?

Yes. A 12 × 12 ft middle-floor bedroom needs a 1.5 ton in Delhi. In Bengaluru, a 1 ton. Check yours in the AC calculator.³

Sources

Our showroom's sizing advice: size for the hottest afternoon, take the average case for the rooms around yours, and a 1 ton will not cool a 144 sq ft top-floor room in a Delhi summer (October 2026) (Citi Cool)
Our showroom's advice for top floors: a non-inverter usually makes more sense; if you want an inverter, a 5 Star (October 2026) (Citi Cool)
Our AC calculator: Daikin's heat-load method, on IS 7896 design weather (Bureau of Indian Standards) and IMD's hottest day of an average year (Citi Cool engineering)
Daikin's full-cooling outside temperature for each series (5 Star 46°C, 3 Star 43°C), and 5% less cooling for every °C above it, as used in our AC calculator (Daikin · Citi Cool engineering)
What does 'Ton' mean in air conditioning and why is it important? (Daikin India)
How many units does a 1.5 ton AC use in an hour? (Citi Cool)
3 Star vs 5 Star AC: is a 5 Star worth it? (Citi Cool)
Daikin AC prices and stock today (citicool.in)