The sizing chart below is useful to help you determine your approximate central air conditioner size requirements. If you still need help, don't worry! Chat with or call one of our factory trained advisors to help get you the answers you need. As an alternative to the sizing chart below we offer MANUAL J - a professional load calculation based on your floor plan, location, and all variables. Please follow the link below for pricing. The turnaround for this service is 1-2 days. MANUAL J Residential Load Calculation Air Conditioning Square Footage Range by Climate Zone In order to scientifically calculate the right central air conditioner size, you can perform a Residential Load Calculation. 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 CKL24-1 is a 2 ton unit.

There are 12,000 Btu's per ton. The number 24 in the model number indicates the unit is 24,000 Btu's, divided by 12,000 Btu's per ton, equals 2 tons. 24,000 Btu's/12,000 Btu's per ton = 2 tons Use the following conversion information to determine your existing system size (use the system model number NOT the serial number) 18 = 1.5 tons 24 = 2 tons 30 = 2.5 tons 36 = 3 tons 42 = 3.5 tons 48 = 4 tons 60 = 5 tons When sizing air conditioners, be careful not to make the mistake of getting one that is too large. If the system you install is too large for the space, it will short cycle. In other words, the compressor will not run long enough to dehumidify the space and will limit your comfort. In addition, it will cycle on and off more frequently, increasing operating costs and reducing the system life. Proper air conditioner sizing is critical to optimize performance. If you're still unsure which system size is right for you, or if you're having difficulty downloading the Air Conditioner Size Calculator , please e-mail us or call us toll free number at 1-855-634-5588.

Sizing air conditioners by phone is difficult but we can provide you with the tools to get you started. Heating Square Footage Range by Climate Zone Use the lower of the two numbers if your home is well insulated and the higher number if it is older or poorly insulated. (Hint: Use the larger of the two numbers above if you're unsure of your home's insulation) Simply multiply the appropriate factor above by your home's total heated square footage to arrive at your approximate required heating capacity. For example, if you live in the yellow zone, your home is well insulated, and you have 2000 heated square feet, the equation will look like this: X .40 heating factor (from the chart above) 80,000 Btu actual output Then, to calculate the output on a gas furnace, multiply its efficiency rating by its listed input rating for the actual Btu output of heat. For example, if a furnace has a listed input rating of 100,000 Btu's and an efficiency rating of 80%, it will produce

If the same 100,000 Btu furnace has an efficiency rating of 93% it will produce:air handling unit sale 93,000 Btu actual outputcost of cleaning ac unit For this example, using an 80% efficient furnace, the 2000 square foot home above would require a 100,000 Btu input furnace which will produce the necessary 80,000 Btu's output of heat.home ac unit won't cool If you're still unsure which system size is right for you, please e-mail us or call our toll free number at 1-855-634-5588. An experienced design technician will be happy to assist you. Variables such as your insulation, type and number of windows, number of stories, construction type, etc. will greatly affect the required Btu's per square for both heating and cooling. A general rule of thumb is that if your home is well insulated with newer style windows, you can select the smaller size system that falls within your total square footage.

If your home is two story it will place less of a load on the system in the downstairs area as the second floor acts as additional insulation. If your home is not well insulated, has older style windows, and/or a larger than average number of windows, you will want to select the larger system which falls within your square footage range. The less insulated and more windows within the environment, the more likely you will experience greater air and heat loss. Contact Us for More Info If you're still unsure which system size is right for you, or if you're having difficulty downloading the Air Conditioner Size Calculator, please e-mail us or call our toll free number at 1-855-634-5588. An experienced design technician will be happy to assist you.Sizing Estimator for Air Conditioners Desired Indoor Cooling Temperature (°F) : The cooling capacity of an air conditioner is measured in tons. In regards to cooling, 1 ton is equal to 12,000 BTU's (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) 36 = 3.0 Ton (36,000 BTU) 42 = 3.5 Ton (42,000 BTU) 48 = 4.0 Ton (48,000 BTU) 60 = 5.0 Ton (60,000 BTU) For example, a model SSX160241 is a 2 Ton (24,000 BTU) air conditioner. There is only one correctly sized air conditioner or heat pump for your home. A unit that is oversized will turn on and off too frequently, called “short cycling.” Short cycling causes the unit to lose both efficiency and the ability to properly dehumidify the home. This may result in higher utility bills and a less comfortable home. A unit that is undersized will run too often, and on the hottest days of the year, may not be able to adequately cool the home. Click the map or choose your region:Region 1Region 2Region 3Region 4Region 5 Using our exclusive sizing calculator allows for a quick estimate of your home's needs.