How to know my ac size? (2024)

How do I know if my AC unit is the right size?

To calculate the size of the air conditioner you need for a room, first, multiply the length of the room with its width. Then multiply it with 25 BTU to get the ample cooling for the room under different weather conditions. For example, if the room is 15 feet long and 12 feet wide, it comes to 180 square feet.

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What size AC unit do I need for a 1500 sq ft house?

What size air conditioner do I need for a 1,500 square foot house? A 2.5 ton air conditioner is best because about 30,000 BTU is needed for a house that's 1,500 square feet.

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How many sq ft will a 3-ton AC cool?

Is a 3-ton air conditioner enough for my house? Apart from the capacity of the air conditioner, you also need to account for things like your climate, house size, and existing insulation. In general, a 3-ton air conditioner will work well in an area of around 1,200 square feet.

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How do I choose AC capacity?

First, find out your the area of you room. Then divide it by 600 to get the basic capacity. So, if you room is 100 sq. feet, the basic AC capacity required will be 0.167 tons (100 / 600).

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How many square feet will a 2.5 ton AC unit cool?

1,201 to 1,500 square feet homes should use 2.5 tons. If your home size is higher than the number above but is less not more than 1,800 square feet, you can go for a three-ton A/C.

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Can my AC unit be too big?

An oversized HVAC unit can make your home's inside temperature uncomfortable. An HVAC system with excess capacity can heat or cool your home faster, but that speed often results in a couple of other issues. First, your home won't benefit from gradual, even heating and cooling.

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How many square feet will a 2 ton AC cover?

A 2-ton split AC is best suited for larger rooms, measuring up to 240 sq. ft of space.

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How many tons does it take to cool 1500 square feet?

The recommended capacity for a home that is 1,201 to 1,500 square feet is 2.5 tons. For a home 1,501 to 1,800, the recommended capacity is 3 tons. For a 2,000 square-foot home, the best AC capacity is 3.5 tons. Since larger homes are costlier to cool, you'll need a 5-ton unit to cool a 3,000 square-foot home.

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What size AC unit do I need for a 1400 sq ft house?

DIY Calculations
Square FootageBTUs per hourAC Unit Tonnage
1,200 to 1,40023,0002 Tons
1,400 to 1,50024,0002 Tons
1,500 to 2,00030,0002.5 Tons
2,000 to 2,50034,0003 Ton
4 more rows
Jun 23, 2020

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How many sq ft will a 5 ton AC unit cool?

2,500-3,300 square feet

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Is 3 ton AC too big?

While a local HVAC professional can help you with this, the general rule of thumb is that one ton of AC capacity will cool approximately 500 square feet. So if your home is 1,500 square feet, a two to three-ton unit would be best.

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What is the thumb rule for AC tonnage calculation?

To estimate your AC tonnage needs, multiply the number of square feet you're cooling times 25. This equals the total number of BTUs you need to adequately cool your space. Next, divide that number by 12,000 to determine the tonnage capability you need in your new air conditioning unit.

How to know my ac size? (2024)

How many square feet does a 2 ton AC unit cover?

What is 2 ton AC coverage area? The room size for 2 ton AC will be around 200 to 240 square feet. However, the figure will be between 180 and 200 if the space is a cooling facility for equipment or an electrical panel room. This is the 2 ton AC cooling capacity you must know.

What size AC unit do I need for 1800 square feet?

Here's some math: You need around 20 BTUs per square foot, which is equivalent to 0.0016 tons. For example, a 600-square-foot space requires a 12,000 BTU or 1-ton unit. By those calculations, an average 1,800-square-foot house would need a 3-ton central air conditioning unit.

How many square feet will a 1.5 ton AC cover?

Room size and power consumption

For instance, a 1-ton window AC or a 1.5 ton split AC is an ideal choice for rooms measuring up to 150-160 sq ft.

What size air conditioner for 1700 square feet?

Furnace and Air Conditioner size for a detached 2-storey home
House square footage *Furnace Output [BTU/hr]Air Conditioner size [ton]
1300 to 1700 sq ft45,000 BTU/hr2 ton
1700 to 2500 sq ft55,000 BTU/hr2.5 ton
2500 to 3500 sq ftup to 65,000 BTU/hr3 to 3.5 ton
3500 to 4500 sq ftup to 80,000 BTU/hr4 to 5 ton
3 more rows
May 26, 2017


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