Homes measuring 1,000-1,500 square feet: You'll need a 2-ton unit, which corresponds to a cooling capacity of 24,000 BTUs per hour. Homes measuring 1,500-2,000 square feet: You'll require a 3-ton unit, equivalent to 36,000 BTUs per hour. Homes measuring 2,000-2,500 square feet: A 4-ton unit is necessary.
As a general rule of thumb, a 3-ton AC unit is typically capable of cooling approximately 1,200 to 1,500 square feet.
Larger unit may be more efficient (larger condensers generally are), but make sure you don't oversize it. If the unit is oversized it'll cycle more frequently, which is hard on it. Oversized can also cause some issues with humidity if you have any outside air connections.
The square footage covered by a 3 ton AC unit depends on multiple variable but accounting for a quick estimate, roughly 1500-1800 square feet.
However, the truth is an oversized system will not do a better job of cooling the house or provide any extra comfort over a properly sized unit. Air conditioner size is calculated in BTU (British Thermal Units) and tons, and measures how much heat the system can remove from the home in one hour.
Hot or Cold Spots
If your air conditioning system is too big, it cannot completely cool your home. This means that you'll have hot or cold spots throughout your home. An AC system that is too large doesn't run long, so the cool air can't be equally distributed through your home.
Since an oversized AC is too powerful for your home, it will quickly cool your home then shut off, which can raise your energy bills and wear out your AC (from all the starts and stops).
For homes ranging from 1200 to 1500 square feet, picking out the right AC size is important for energy efficiency. A 2 to 2.5 ton AC unit (24,000 to 30,000 BTUs) is typically suitable for a home that is between 1200 to 1500 square footage.
How much does a 3-ton AC unit cost? The installation costs for a 3-ton air conditioning system generally range between $4,451 and $8,099. However, air conditioner prices vary depending on factors like an HVAC system's type and energy efficiency rating.
Homes measuring 1,000-1,500 square feet: You'll need a 2-ton unit, which corresponds to a cooling capacity of 24,000 BTUs per hour. Homes measuring 1,500-2,000 square feet: You'll require a 3-ton unit, equivalent to 36,000 BTUs per hour. Homes measuring 2,000-2,500 square feet: A 4-ton unit is necessary.
Every air conditioner ton can efficiently cool around 500 square feet of a home. Depending on the system's model, this estimated square footage can be slightly more. This being said, a 3-ton AC system is a reasonably sized unit for a 2,000-square-foot home.
For most homeowners: Hot Climates (Texas): A 17-18 SEER unit with a variable-speed compressor provides a great balance of comfort, efficiency, and cost. Milder Climates: A 14-16 SEER unit is often sufficient.
Neither oversizing nor undersizing your AC unit is ideal. Both scenarios can lead to issues with efficiency, comfort, and longevity of the system. Oversizing: If your AC unit is too large for your home, it will cycle on and off frequently, leading to inefficient operation and increased energy bills.
3-ton air conditioners are one of the most common sizes people go for. However, if you're thinking this behemoth is just for cooling a single room, think again. Typically, a 3-ton air conditioner can effortlessly handle a 1500 square feet home.
Larger units provide more cooling power, but they also consume more energy. In addition, big cooling systems are expensive and run in short cycles.
The most common and easiest way to measure the tonnage of an air conditioner is using the area method. To calculate using this method, first, multiply the length and width of the room in feet. Then calculate the square root of the result and divide by 10. The obtained value will indicate the necessary tonnage.
If the unit is too big, it will cycle off before humidity is removed from the air. This means that it will cool quickly but the air is still sticky. Long term, this can cause the walls in the home to sweat. This is much the same as what happens when you have a cold glass of ice water by the pool on a hot day.
Selecting the right sized unit is key to comfort and savings. Remember, bigger is not always better. —An over sized air conditioner will be less effective. Air conditioners remove both heat and humidity from the air, but if the unit is too large, it will cool the room, before it has a chance to remove the humidity.
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. As a result, you could end up with a number of hot or cold spots throughout your home.
2.5 tons: 1201-1500 sq. ft. 3 tons: 1501-1800 sq. ft.
Using that measurement, a two-ton AC unit will remove 24,000 BTUs, while a three-ton AC unit will remove 36,000 BTUs. Therefore, the more tonnage the AC unit is rated for, the more air it can cool down.