What is the difference between a 2 ton and 3 ton ac?
A two-and-a-half ton air conditioner has 30,000 BTU's and can cool a home sized 1,201 to 1,500 square feet while a three ton unit has 36,000 BTU's and is designed for homes 1,501 to 1,800 square feet.
How many BTUs does a 4 ton ac move?
A four ton unit can move 48, 000 BTUs and so on. Therefore, the more tonnage an AC unit is rated at, the more air it can cool. Most homes, depending on ceiling heights, windows, and airflow will need a ton of air conditioning for every 400 to 1,000 square feet.
What is a a ton in HVAC?
A ton, as used in the HVAC field, is a term that describes how much heat the AC unit can remove from a home in one hour. The measurement for heat is the British thermal unit (BTU).
What size central AC unit is considered 5 ton?
Be careful when choosing 5 ton unit: most producers label even 52,500 BTU units as 5 ton units. 5 ton equals 60,000 BTU; we can consider any unit with above 55,000 BTU cooling output a ‘5 ton’ unit. Who To Call When You Need Help With Central AC Installation? In most cases, you don’t buy central AC units over the internet.
How many sq ft will a 3-ton AC cool?
about 1,800 square feetHow 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 big of a house will a 3-ton unit cool?
And manufacturers do provide estimates, which helps homeowners narrow down their choices. 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.
Is Higher ton better AC?
An air conditioner that is one ton is able to remove 12,000 BTUs of heat per hour. Each ton is an additional 12,000 BTUs. Simply put, the more tonnage, the more air an AC can cool down.
Is 3-ton AC big enough?
Pro Tip: as a rule of thumb, the maximum AC unit size you need to install should not be more than 15% more than the BTU's you need to cool your house. This means that if your house requires a 24,000 BTU unit (2 tons), you should not install one that is larger than 30,000 BTU's (3 tons) to maintain energy efficiency.
How do I know if my air conditioner is big enough?
5 Signs Your AC Unit is Too Small for Your HouseYour AC Isn't Cooling Your Home. Is your AC not cooling your home? ... Inconsistent Room Temperatures in Your Home. Some rooms are comfortable. ... Air Conditioner Doesn't Turn Off. ... Your Energy Bill is Too High. ... High Humidity Inside Your Home.
What happens if my AC unit is undersized?
Undersized air conditioners will struggle to ever get the room cool enough and therefore will fail to go through healthy on and off cycles. This extra wear and tear will lessen the life of your ac and cost you more in repairs.
Why is an oversized AC bad?
Again, because oversized HVAC units blast your home with cool air instead of cooling it down gradually, the temperature swings prompt your HVAC system to start up and shut down in rapid succession-a condition commonly known as “short cycling.” Short cycling can wreak havoc on your HVAC system if left unchecked.
What size AC unit do I need for a 2500 sq ft house?
Step 5: Match your square footage to an HVAC size chartHome Sq FootageAir Conditioner Size (tons)600 - 1,000 square feet1.5 tons1,000 – 1,500 square feet2 tons1,500 – 2,000 square feet3 tons2,000 – 2,500 square feet4 tons1 more row
What size AC unit do I need for a 1800 sq ft house?
3-tonHere'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 AC do I need for 1700 sq ft?
Furnace and Air Conditioner size for a detached 2-storey homeHouse square footage *Furnace Output [BTU/hr]Air Conditioner size [ton]up to 1300 sq ft40,000 BTU/hr1.5 ton1300 to 1700 sq ft45,000 BTU/hr1.5 ton1700 to 2500 sq ft55,000 BTU/hr2 to 2.5 ton2500 to 3500 sq ftup to 65,000 BTU/hr2.5 to 3 ton3 more rows•May 26, 2017
What size central air conditioner do I need for a 2000 sq ft home?
3 to 3.5-tonAs mentioned, most would recommend a 3 to 3.5-ton air conditioning unit for a 2,000 square foot home. In general, the BTU per ton rule is 12,000 BTU per ton. Therefore, a 3-ton air conditioning unit will have around a 36,000 BTU rating.
What size AC do I need for 3000 square feet?
1,500–2,000 sq/ft = 30,000 BTUs. 2,000–2,500 sq/ft = 34,000 BTUs. 2,500–3,000+ sq/ft = 42,000–60,000 BTUs.
How much ton AC should I buy?
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).
How many ton AC should I get?
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.
Is a 4 ton AC unit big?
Benchmarks for Air Conditioner Size: 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.
Which AC is best 1.5 ton or 2 ton?
1 ton ACs can provide just the sufficient bit of cooling while not going too heavy with the electricity bill. While you compare 1 ton vs 1.5 ton AC, the rule of thumb is that if you have a room which is more than 200 square metres, you should be opting for an AC with a 1.5 ton capacity.
How many BTUs can a 4 ton AC unit move?
A four ton unit can move 48, 000 BTUs and so on. Therefore, the more tonnage an AC unit is rated at, the more air it can cool. Most homes, depending on ceiling heights, windows, and airflow will need a ton of air conditioning for every 400 to 1,000 square feet.
How much air can a ton of air remove?
The measurement for heat is the British thermal unit (BTU). One ton of air conditioning can remove 12,000 BTUs of air per hour. A four ton unit can move 48, 000 BTUs and so on. Therefore, the more tonnage an AC unit is rated at, the more air it can cool.
Why is air conditioning tonnage higher?
Higher air conditioning tonnage can mean higher energy costs because the more tonnage an air conditioner is rated for the more work it is doing . When buying a new air conditioning installation, get one that is EnergyStar certified. They are the most efficient units available. And AC Warehouse has them.
What does "tonnage" mean in HVAC?
What does Air Conditioning Tonnage mean? “Air Conditioning Tonnage” is one of the most mysterious phrases in the HVAC industry. Sometimes it seems like air conditioning technicians and engineers have an entire language of their own. Some of the words these folks use are common, but the way they use them is not.
Table of Contents
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Common Residential Air Conditioner Sizes
Below is a table of common residential air conditioner sizes in 4 different units of measurement for cooling capacity (BTU, Ton, HP and kW). These different units of measurement don’t translate mathematically. They are listed based on commonly available sizes. Hence, you should not use this table for unit conversion.
Common Central Air Conditioner Sizes
Below is a table of common central air conditioner sizes in 4 different units of measurements for cooling capacity (BTU, Ton, HP and kW). Again, these different units of measurement don’t translate mathematically. They are listed based on commonly available sizes. Hence, you also should not use this table for unit conversion.
Room Air Conditioner Sizing Chart by Room Size
Below is a room air conditioner sizing chart by room size. The air conditioner sizes (BTU & Ton) are rounded to the actual common air conditioner sizes rather than just the result of the calculated cooling capacity. Hence, you can conveniently match the exact air conditioner based on your room size.
Room Air Conditioner Sizing Chart for Bedrooms
Below is a room air conditioner sizing chart for bedrooms. The air conditioner sizes (BTU) are rounded to the actual common air conditioner sizes rather than just the result of the calculated cooling capacity. Hence, you can conveniently match the exact air conditioner based on your bedroom size.
Room Air Conditioner Sizing Chart by Room Type
Below is a room air conditioner sizing chart by room type. The air conditioner sizes (BTU) are rounded to the actual common air conditioner sizes rather than just the result of the calculated cooling capacity. Hence, you can conveniently match the exact air conditioner based on your type of room and its respective square footage.
Air Conditioning Sizing Chart by Total Square Footage
Below is an air conditioner sizing chart by total square footage. The air conditioner sizes (BTU & Ton) are rounded to the actual common air conditioner sizes rather than just the result of the calculated cooling capacity. Hence, you can conveniently match the exact air conditioner based on the square footage of any room, house or home.
What is a BTU?
A BTU is the amount of heat required to raise the temperature of 1 pound of liquid water by 1 °F at a constant pressure of one atmosphere. Depending upon the quantity of heat energy the ice encounters, a ton of ice will melt at any given time interval. I discovered an article from the American Society of Mechanical Engineers.
What is BTU in model numbers?
Most manufacturers’ model numbers incorporate the BTU equivalent into their unit model numbers, or reference the tonn age. It’s not an exact science, but understanding tonnage designations provides an educated guess when working with unfamiliar model numbers.
Why do air conditioners not produce cool air?
Why… because Air Conditioners (A/C) don’t produce cool air, they remove heat from a space by using refrigerant to absorb heat and transfer it outdoors. The “ton” reference of an air conditioner’s capacity is related to heat removal, not the amount of air moved through the unit, or its actual weight.
Do manufacturers include tonnage in their unit number?
Other manufacturers incorporate the tonnage directly into their unit number. However, they usually don’t include the precise tonnage. My thought; because of the 2.5, 7.5 and 12.5 ton units which if expressed with whole numbers would cause confusion. Most all manufacturers when referencing tonnage round up. Example:
What is the temperature of an AHRI air conditioner?
AHRI uses 95° F as its outdoor test temperature, so if your outdoor cooling design temperature differs from that, your AC capacity will again vary from the AHRI rated capacity. In this case, we get a little of that lost capacity back here in Atlanta. Our design temperature is 92° F, which means that the air conditoner has an easier job of dumping heat into the outside air than it would if it had to dump the heat into 95° F air.
Can opposable thumbs be used for HVAC?
Having opposable thumbs allows us to write a letter, examine a mulberry, and hold a glass of beer, but no matter how great they are, they can’t design HVAC systems. Rules of thumb don’t work. You need to know how things really work and do the math for that.
Is it hard to cool air at 75 degrees?
The lower the temperature goes, the harder it is to remove more heat from it. Just ask the folks at the Microkelvin Laboratory at the University of Florida, where they get about as close to absolute zero as is possible. If it’s harder to cool air at 75° F than air at 80° F, then that means the 2.8 ton air conditioner above isn’t even going ...
How much less energy does an air conditioner use?
According to the US Office Of Energy Efficiency And Renewable Energy, “Today’s best air conditioners use 30% to 50% less energy to produce the same amount of cooling as air conditioners made in the mid-1970s.
How much energy savings can I make by replacing my air conditioner?
Even if your air conditioner is only 10 years old, you may save 20% to 40% of your cooling energy costs by replacing it with a newer, more efficient model.”. There are several questions you have to answers before picking the best central air conditioner for your home.
How long has Trane been around?
Trane Technologies is one of the oldest and best-known HVAC brands. It was established over 100 years ago (in 1913, just prior to WW1) and it has prospered ever since. Currently, it employs about 30,000 people and generates more than $8 billion in annual sales.
What is the measurement of central air conditioner capacity?
Tonnage is the basic measurement of central air conditioner capacity. In other words, it tells you how powerful the cooling effect can the unit generate. There are two units we use for AC capacity: BTU/hr. Usually more appropriate for smaller air conditioners (below 2 tons).
What is the best central AC unit?
Daikin Industries is one of the best central AC unit brands. They are a Japanese HVAC company, based in Osaka, Japan, and have made their name by inventing the variable refrigerant flow (VRF) AC units. On top of that, they are the ones who developed and successfully marketed R410A; one of the most widely used refrigerants (in cooperation with Carrier).
What does SEER mean in air conditioning?
The SEER rating is the single most important specification when picking a new central air-con. SEER stands for Seasonal Energy Efficiency Ratio ; it gives you an idea about how much it will cost to run any central air conditioner.
How many tons of AC do I need in San Francisco?
If you live in San Francisco, for example, you will probably require a 4 ton central AC unit. General rule 1: 1 ton will cool down about 500 sq ft of space. General rule 2: The further south you go, the more powerful central C unit you’ll need. For more estimates, you can also use the AC tonnage calculator here.
Square Footage Estimations
The simple way to calculate a home's air conditioner size is to use a rule of thumb. According to this common but somewhat inaccurate method, you need 1 ton of air cooling capacity for every so many square feet of living space. While there's some dispute over the exact amount, an often-used amount is 600 square feet.
Sizing Inaccuracies
One problem with estimating air conditioning size based on square footage is that every home is different. An average home in Florida, for instance, needs more cooling power than if it was situated in Michigan.
Manual J Calculations
To obtain a precise calculation, you must consider your home's unique factors: What region is it in? How good is the insulation? What direction does the house face? Some websites use online calculators to enable you to perform a closer estimate.
