How to Size a Commercial Air Conditioner. The average commercial A/C size ranges from 2 tons for small buildings to as much as 30 tons for very large buildings. A 1 ton air conditioner can remove around 12,000 Btu, or British Thermal Units, of heat per hour. To

Jun 20, 2014The numbers you'll see on residential air conditioners and heat pumps are M/N Tons 018 1.5 024 2 030 2.5 036 3 042 3.5 048 4 060 5. The 3 digits in the model number tell you the nominal capacity in thousands of BTU/hr. Since each 12,000 BTU/hr is equivalent to 1 ton of air conditioner capacity, it's easy to figure out how many tons of nominal capacity your AC has.

Oct 25, 2014The central air conditioners that are installed in your home range from 1.5 ton to 5 ton units and increase in half ton increments (2 ton, 2.5 ton, 3 ton, etc). Anything over 5 tons is generally considered a light commercial HVAC unit (not available for residential projects)

Related Articles. Cooling capacity for room air conditioners and central air conditioning systems is measured in British Thermal Units (BTUs) per hour. The United States Department of Energy Energy Star website offers these guidelines for BTUs per square footage 100 up to 300 sq. feet 5,000 to 7,000 BTU 300 up to 550 sq.

How to Calculate How Many BTUs You Need. Use the dropdowns below to help you estimate what size air conditioner is best for your space. The cooling power of different types of air conditioners is based on BTUs. Weve rated and measured our units against a number of different room and/or home conditions that can effect the cooling power required.

The cooling power of an air conditioner is calculated in British Thermal Units (BTUs). (One BTU is enough energy to heat one pound of water by 1 degree F.) A few tips If you need to install a unit that delivers 12,000 BTUs or more, have an electrician install a 240 volt receptacle.

The standard rule is that a portable air conditioner unit needs approximately 20 BTU for each square foot of the space you are using it in. To measure your space, simply multiply the length of the room by the width, and you have your square footage. Here are reliable BTU estimates for three common room sizes

Cooling capacity offers a concrete measure to help determine whether a particular air conditioner is an appropriate fit for your space. An air conditioners cooling capacity is expressed in BTUh (British Thermal Units per Hour) or tons (often referred to as tonnage).

Get the right size air conditioner for your needs and make sure youre comfortable both physically and financially. Determining Your BTUs. Air conditioners are sized by the number of BTUs they put out. BTUs stand for British Thermal Units and refer to the amount of energy your air conditioner

Sizing Estimator for Air Conditioners. Square Footage 50 15000. Home (British Thermal Units). A standard air conditioner ranges in size, from smallest to largest 18 = 1.5 Ton (18,000 BTU) 24 = 2.0 Ton (24,000 BTU) 30 = 2.5 Ton (30,000 BTU) sizes of rooms, etc, and making a calculation based on those factors to determine the

Sizing Calculator. The following technique can provide you with an approximate size estimate for your new furnace or central air conditioner. Although you may reasonably use this estimate as a first pass when browsing through furnace or air conditioner models, you (or your HVAC contractor) should complete a thorough load calculation before you make your purchase.

May 08, 2019Knowing the number of BTUs required per square foot of space is important in choosing the right size furnace and air conditioning system to heat and cool your house efficiently and effectively. Determine the necessary heating or cooling capacity. To calculate BTU per square foot, start by measuring the square footage of each

Wondering what size air conditioner you need? Our BTU calculator is designed to determine how many BTUs are needed for a single room. This calculation will not work for a whole house or commercial location, but is ideal for determining your mini split, through the wall, PTAC or window AC size.

Understanding central air conditioner sizing. The term size of a central air unit does NOT refer to the physical dimensions. Rather, size is a measure of its capacity to generate cool air. The size of an AC unit is measured in tonnage as well as BTU (British Thermal Unit) per hour.

Compare the square footage to the Energy Star central air unit BTU chart to determine the best size for your mobile home. Some mobile home sizes may fit into two different air conditioner BTU categories; for example, a 1,000 square foot home can use either an 18,000 or 21,000 BTU air unit.

Another way to size air conditioners is to determine the system size that is currently in place. The manufacturers do not list the air conditioner size on the unit. The system capacity will be coded into the model number of the outdoor unit. For example, model GSX140241K is a 2 ton unit.

May 08, 2019Determine the necessary capacity. One method for determining capacity is refer to the estimates on this index. Note that air conditioners are rated in BTUs per hour, but the label may abbreviate this to just "BTU.". To cool 100150 ft2, you need ~5,000 BTUs per hour. To cool 150250 ft2, you need ~6,000 BTUs per hour.

Wondering what size air conditioner you need? Our BTU calculator is designed to determine how many BTUs are needed for a single room. This calculation will not work for a whole house or commercial location, but is ideal for determining your mini split, through the wall, PTAC or window AC size.

Factors to Consider When Sizing an Air Conditioner. There are many factors to consider when sizing a window air conditioner. The main factor is the size of the room. Room Size Determines Window Air Conditioner Size. The size of the room is the main factor in choosing a window air conditioner size.

Btu and Tonnage Calculator. The size (cooling capacity) of your air conditioner is determined by the amount of Btu (British thermal unit) and the Tonnage (12.000 Btu = 1 Ton). What amount of Btu and Tonnage should your air conditioner have in order to properly cool your home? Although we, at Kobie Complete, use a complex formula

How to Calculate the Right Size for an Air Conditioner. There are few more calculations you have to do, in order to calculate air conditioner size for your house. Calculate the area of each of your south side windows (width times height). Total the area of the windows and multiply it by 871 BTUs. This will give you the amount of heat entering your house through the south side windows.

Terminology Used. Tonnage In reference to air conditioning, a ton measures how much heat removed by the system would be needed to melt 2,000 pounds, or one ton, of ice in a 24 hour period. The result is then expressed in Btu per hour. According to the standard calculation, it takes 288,000 Btu to melt a ton of ice in 24 hours,

Another method for sizing air conditioners is determining the size of the air conditioner system that's currently in place. Manufacturers normally don't list the size of the air conditioner unit but don't worry The system capacity is almost always coded into the model number of the outdoor unit.

As a rule of thumb, an air conditioner needs 20 Btu for each square foot of living space. But dont buy by Btu alone. Other considerations, such as the ceiling height and the size of your windows and doorways, might call for for more cooling power. To measure your room, multiply the length of the room by the width.

Air conditioners' cooling capacity is measured in British Thermal Units, or BTUs. You may also hear AC size referred to in "tons," which is the equivalent of 12,000 BTU's. While it's not necessary to understand the science behind it, you should have a good grasp of capacity in