Step 5: Match your square footage to an HVAC size chart

Home Sq Footage Air Conditioner Size (tons)
1,000 – 1,500 square feet 2 tons
1,500 – 2,000 square feet 3 tons
2,000 – 2,500 square feet 4 tons
2,500 – 3,300 square feet 5 tons

How many square feet does a 3-ton AC unit cover?

1,800 square feet

How many square feet does a 3-ton air conditioner cover is quite easy to answer as well. 3-ton is equal to 36,000 BTU. If you apply the 20 BTU per sq ft rule of thumb, you can see that a 3-ton air conditioner cools about 1,800 square feet spaces.

How do I calculate what size air conditioner I need?

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.

How many square feet does a 3.5-ton AC cool?

Choose a unit that is 3.5 tons if your home measures more than 1,800 but not more than 2,100 square feet. A four-ton unit is suitable for homes that are more than 2,100 square feet up to 2,400 SF.

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

For example, a 30,000 BTU, 2.5-ton air conditioner is made to effectively cool a home between 1,200 and 1,500 square feet. A slightly larger 3,600, 3-ton unit, is designed for homes that are 1,500 to 1,800 square feet.

Can I replace a 3 ton AC with a 4 ton?

Proper size is a must. There is no reason for you to install a 4 ton if you can use a 3 ton. The low stage isn’t that much less than full capacity because of the unloading scroll systems.

How big of an AC unit do I need for a 2000 sq ft house?

Step 5: Match your square footage to an HVAC size chart

Home Sq Footage Air Conditioner Size (tons)
600 – 1,000 square feet 1.5 tons
1,000 – 1,500 square feet 2 tons
1,500 – 2,000 square feet 3 tons
2,000 – 2,500 square feet 4 tons

What size AC do I need for 1700 sq ft?

Furnace and Air Conditioner size for a detached 2-storey home

House square footage * Furnace Output [BTU/hr] Air Conditioner size [ton]
up to 1300 sq ft 40,000 BTU/hr up to 2 ton
1300 to 1700 sq ft 45,000 BTU/hr 2 ton
1700 to 2500 sq ft 55,000 BTU/hr 2.5 ton
2500 to 3500 sq ft up to 65,000 BTU/hr 3 to 3.5 ton

What size AC unit do I need for a 1800 sq ft house?


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.

What size air conditioner do I need for a 1300 sq ft house?

The 1,300-Square-Foot Answer

When looking for the quick answer to how much air-conditioning power you’ll need to adequately cool a 1,300-square-foot space, the answer is 23,000 BTUs per hour of air conditioning power. This is the base capacity needed for a 1,200- to 1,400-square-foot house.

What happens if air conditioner is too small?

What Happens When Your AC is Too Small. If your air conditioning system is too small for the space that it is installed in, then it won’t have an efficient enough output. This forces the system to operate far longer than it is designed to, to try to keep your home cool.

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

STEP 1: Determine how many BTUs of heating and tons of AC you need

House Square Footage BTUs Needed
1,200 – 1,400 23,000
1,400 – 1,500 24,000
1,500 – 2,000 30,000
2,000 – 2,500 34,000

What is the room size for 2 ton AC?

between 200 and 260 square feet

A 2-ton air conditioner is large enough to cool a room between 200 and 260 square feet.

Which AC is better 1 ton or 1.5 ton?

1 Ton AC can remove 12,000 BTUs of heat per hour and 1. 5 ton AC can remove 18,000 BTUs of heat. 1.5 ton AC being more powerful in terms of cooling than a 1 ton AC will surely cool the same size room faster. A 1.5 ton AC produces 50% more cooling than 1 a ton AC.

How do I know if my AC is 1 ton or 1.5 ton?

Look for an even, two-digit number between 18 and 60. Or, you might see a three-digit number starting with 0. If you find one of those numbers, chances are good it’s the unit’s BTUs: 018 = 18,000 BTUs = 1.5 tons.

What is the difference between 1.5 ton and 2 ton AC?

The capacity of 1.5 ton AC is 18000 BTU per hour in this way the capacity of 2 ton AC is 24000 BTU per hour. But now a days all AC available in the market for having capacity 22,000 BTU per hour are said to 2 ton .

How many sq ft will a 1.5 ton AC unit cool?

How many square feet does a 1 – 5 ton air conditioner cool?

AC Unit Capacity (Ton) Cooling Capacity Square Feet
1 Ton 450 – 600 sq ft
1.5 Ton 650 – 825 sq ft
2 Ton 850 – 1,000 sq ft
2.5 Ton 1,100 – 1,300 sq ft

Can a 1.5 ton AC cool 250 square feet?

Yes a 1.5 Ton AC will be sufficient to cool your room. Though the specs sheet will say it is meant for rooms less than 200 Sq feet. You can go ahead with 250 sq. ft room.

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

about 900-1,400 square feet

For those of you that don’t understand the way AC systems work, a 2-ton unit typically provides cooling for about 900-1,400 square feet of space – give or take.

What size air conditioner do I need for a 2300 square foot home?

3.5 Tons

2.5 Tons 1201 – 1500 sf 1401 – 1650 sf
3 Tons 1501 – 1800 sf 1651 – 2100 sf
3.5 Tons 1801 – 2100 sf 2101 – 2300 sf
4 Tons 2101 – 2400 sf 2301 – 2700 sf

What is the room size for 1.5 ton AC?

Room size and power consumption

Here tonnage plays an important role. 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. Star rating of AC essentially refers to how efficient the air conditioner is in converting electricity to cool air.