Ships from and sold by Gem Overstock. 2.5 Ton 13 Seer Goodman Air Conditioning System - GSX130301 - ARUF30B14 Goodman HKR-10C Auxiliary Heat Strip 10Kw with Circuit Breaker 3/8 3/4 50' Insulated Line Set for Central Heating and Air Conditioner Systems 200 pounds (View shipping rates and policies) #484,775 in Home and Kitchen (See Top 100 in Home and Kitchen) #599 in Home & Kitchen > Heating, Cooling & Air Quality > Air Conditioners & Accessories > Air Conditioners See all 3 customer reviews See all 3 customer reviews (newest first) Asked on: March 11, 2013 by Sandra G., Boca Raton, FL How do I know when it is time to replace a functioning heat pump air-conditioning unit with a new, more energy-efficient system?The question of early replacement of an A/C or heat pump that is working fine is mostly an economic decision. Ask yourself if you’re ready to make the large investment in a new air conditioning unit, and you can start saving on operating cost right away. 

Generally, FPL suggests considering early replacement if your existing A/C is 10 years old or more. Your possible annual savings is affected by the efficiency rating, or SEER (Seasonal Energy Efficiency Ratio), of your existing unit and the extent of your upgrade. For example, using an average 3 ton A/C unit, if you upgrade from a SEER 10 to SEER 16, your annual savings will be about $400 a year. Meanwhile, you’ll save about $150 per year by upgrading an already more efficient SEER 13 unit to a 16 SEER. In addition, when installing a 16 SEER 3 ton unit, FPL will contribute $585 as a rebate to your total cost of the unit if you purchase your A/C system through a Participating Independent Contractor (PIC). FPL rebates vary based on size of the A/C unit and the SEER efficiency selected.  See our annual cooling cost calculator illustrating this example below. Try our "cool" calculator. Once you use our calculator and have an idea of how much savings you can expect, you can make a more informed economic decision. 

Also, you may be eligible for a rebate if you install a new A/C.  Decorations So Good, They're Scary.Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.Choosing the correct size air conditioning unit is a frustrating and confusing proposition for many homeowners. Getting an air conditioning unit that is too big or too small can reduce your comfort, increase operating costs, decrease efficiency, and even lessen the lifespan of your unit. Even when you get price quotes from multiple companies, you will likely get recommendations and rationales for various size units. The following guidelines will give you important insight into the process of sizing air conditioning units. Your HVAC company will use a formula called the Manual J Residential Load Calculation to determine the optimal size for your air conditioning unit. This involves a rather complicated calculation using a number of variables, including:

Your home’s construction materials.ac unit emergency heat The number of windows.top portable air conditioning units The size of the rooms.air conditioning unit with ice on it Your home’s insulation levels. Or, click here to request a air conditioning replacement quote online. Fortunately, you can get a close approximation using a much simpler formula. You can get an estimate of the required tonnage of your air conditioner by dividing the square footage of your home by 600. Do not include the square footage of your basement or garage in the calculation. The following is an example: Square Footage of Home/Size of AC Unit 1,500 sq. ft./2.5 tons (1,500/600) 1,800 sq. ft./3.0 tons (1,800/600)

2,100 sq. ft./3.5 tons (2,100/600) 2,400 sq. ft./4.0 tons (2,400/600) Greater than 2,400 sq. ft./5.0 tons It is important to keep in mind that new, energy efficient homes may require a smaller unit depending on the home’s particular style, construction, and orientation. Your heating and air company will do the long-form load calculation to fine tune the size of your air conditioning unit; however, your rough estimate should be within about one-half ton of the actual size. You should be wary if your heating and air company recommends a unit that is more than one-half ton smaller than your calculation. If this happens, you should advise the contractor to make sure there is sufficient air return for the extra cooling capacity. You should also ask for a written money-back guarantee in case you are not satisfied. Another way to determine the appropriate size air conditioner is to look at your existing unit. The unit’s capacity is coded into the model number of the unit.

For example, if your air conditioner’s model number is CKL18-1, it is a 1.5-ton unit. The number 18 indicates that the unit is 18,000 BTUs. There are 12,000 BTUs in one ton; therefore, your unit is 1.5 tons. The following is a handy conversion guide: Number of BTUs/Number of Tons It is important to ensure that you are looking at your air conditioner’s model number and not the serial number. Many homeowners make the mistake of getting an air conditioner that is too big for their home thinking that it will cool quicker or be more efficient. In fact, getting a unit that is too large will cause the system to short cycle. This means that the compressor will not run long enough to dehumidify your home. The unit will cycle on and off more often, which will reduce the life of your system and increase operating costs. Types of Central Air Conditioning Units When selecting a central air unit, you have the choice of installing the entire unit outside of the home or installing the compressor and condenser outdoors and the blower or evaporator indoors on the furnace.

The split configuration is the most economical. This allows the furnace blower to deliver the cooled air throughout the house through your existing air duct system. If you opt for a window air conditioner over a central heat and air unit, the first step in selecting the right size unit is to determine the square footage of the area that you want to cool. To do this, you multiply the width of the room by the length. For example, a 10-foot by 10-foot room would be 100 square feet. You can then use the following guide to determine the appropriate BTU rating for your unit: 150 to 350 sq. ft./5,000 to 8,000 BTUs 351 to 550 sq. ft./8,000 to 12,000 BTUs 551 to 1,050 sq. ft./12,000 to 18,500 BTUs 1,051 to 1,600 sq. ft./18,500 to 25,000 BTUs Certain conditions may decrease or increase your particular cooling needs. For example, a heavily shaded room may require less cooling. You may need a larger unit if it is to be located in the kitchen, if the room gets a lot of direct sun, or if the room is normally occupied by multiple people.