seer rating chart

In heating mode, the coefficient of performance is the ratio of heat provided to the energy used by the unit. It refers to the amount of energy an air conditioner needs to function properly. But if you’re thinking about getting a higher SEER (18+), keep in mind that: A higher SEER doesn’t always mean more overall savings; But a higher SEER DOES mean higher comfort levels AFUE can be compared to SEER (Seasonal Annual Efficiency Ratio), which is the efficiency rating system for air conditioners. [9] GREE also released a 30.5 SEER rating mini split in 2015 as well. Higher Energy Efficiency This is how it simulates a typical season. that can bring the down the cost of a high SEER system. Greater Indoor Comfort A typical example would include comparing a 3 ton, 8 SEER air conditioner to a new 3 ton, 16 SEER … SEER  stands for Seasonal Energy Efficiency Ratio. What is the annual cost of the electric energy required to operate the air conditioner? SEER = 1.12 -1.2544-0.08×EER0.04. During each era there were also “high efficiency” models, often proudly announced by a fancy medallion on the condenser unit, so some older systems may exceed these numbers. In 10 years, that would be almost $220 difference. "Cold climate" heat pumps are designed to optimize efficiency below 0 °F (−18 °C). Traditional AC systems with ducts have maximum SEER ratings slightly below these levels. An ideal resistance heater converting 100% of its input electricity to output heat would have COP = 1, equivalent to a 3.4 EER. Calculate the estimated amount of energy each air conditioner will use annually using this equation: [(Size of AC system x 12,000) / SEER] x 1500 = amount of Watt-hours used annually. A SEER rating as low as 8 is common for older air conditioning systems. When operated in heating mode, a heat pump is typically more efficient than an electrical resistance heater. This is intended only for use in the United States of America. To obtain that certified efficiency rating, though, it is important that a contractor install a system properly. Estimating the annual savings between 14 and 17 SEER. is the outdoor temperature. The next three numbers will tell you the tons. Getting an air conditioning system with a higher SEER does mean you’ll be more comfortable in the summer months, especially if you live in a hot region like the Southeast or Southwest. (Northern states include: Alaska, Colorado, Connecticut, Idaho, Illinois, Indiana, Iowa, Kansas, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, New Hampshire, New Jersey, New York, North Dakota, Ohio, Oregon, Pennsylvania, … You can also feel good using fewer fossil fuels, which means fewer greenhouse gas emissions. The SEER and EER of an air conditioner are limited by the laws of thermodynamics. [10] Carrier launched a 42 SEER ductless air conditioner during 2018 Consumer electronic Show (CES), held in Las Vegas. This measurement is calculated by the total cooling output of your system divided by the total electric energy input, or Watt-Hours, required. If you have more questions about SEER or want to invest in a new cooling system, a local Trane Comfort Specialist can work with you to find an energy saving option that’s the perfect fit for your current home or when your building your new energy efficient dream home. Take a few minutes to use this Savings Calculator to find out how much money you can save in one year and in 20 years. Currently, the minimum SEER and HSPF that you can buy are: SEER 13; HSPF 7.7; If you buy an air source heat pump with a higher SEER rating, it will usually have a higher HSPF rating, too, but make sure you focus on the latter number if your heating load is higher than your cooling load. [7][8] During the 2014 AHR Expo, Mitsubishi unveiled a new mini-split ductless AC unit with a SEER rating of 30.5. $175.87 per year if the SEER rating is 18. For example, if an electric load that draws 1.5 kW of electric power is operated for 8 hours, it uses 12 kWh of electric energy. In 2011 the US Department of Energy (DOE) revised energy conservation rules to impose elevated minimum standards and regional standards for residential HVAC systems. For example, if an electric load that draws 1.5 kW of electric power is operated for 8 hours, it uses 12 kWh of electric energy. This is because a space heater can convert only the input electrical energy directly to output heat energy, while a heat pump also transfers heat from outdoors. The maximum SEER can be calculated by averaging the maximum EER over the range of expected temperatures for the season. Lower temperatures may cause a heat pump to operate below the efficiency of a resistance heater, so conventional heat pumps often include heater coils or auxiliary heating from LP or natural gas to prevent low efficiency operation of the refrigeration cycle. Depending on various circumstances there may be times when it uses more energy. A SEER rating lets you know how efficient your current system should be or how efficient it will be after installation. ** This would mean that an HVAC unit with a SEER rating of SEER-14 would have an equivalent rating of SEER-12 in Santa Clarita. The minimum in the Southwest and Southeast is 14 and it’s goes down to 13 in the North. The minimum standard SEER for air conditioners is 13, though most modern air conditioners have a SEER that ranges from 13 to 21. The minimum SEER value changed again on January 23, 2006 to 13 SEER. SEER, or Seasonal Energy Efficiency Ratio, is an energy efficiency rating for air conditioners. Anything over 13 is great. Divide the cooling system's rated BTU's by its stated SEER rating to determine how many watts it consumes per hour, (Kwh stands for kilowatt hour). But when either replacing equipment, or specifying new installations, a variety of SEERs are available. Here's the formula (we'll use a 3 ton, 15 SEER system for this comparison): 36,000 BTU's (3 tons- there are 12,000 Btu’s per ton of cooling) divided by 15 SEER = 2400 36,000 divided by 15 = 2400 Even with a high SEER rating, it’s still helpful to use other energy saving tips for the summer season. SEER Energy Savings Calculator. "SEER" redirects here. The minimum standard SEER for air conditioners is 13, though most modern air conditioners have a SEER that ranges from 13 to 21. range from 14.5 SEER up to 22 SEER. A more detailed method for converting SEER to EER uses this formula: A SEER of 13 is approximately equivalent to an EER of 11, and a COP of 3.2, which means that 3.2 units of heat are removed from indoors per unit of energy used to run the air conditioner. There’s no magic SEER number. If your SEER ratio is 21, that’s the maximum efficiency and it could be lower depending on conditions. The EER is related to the coefficient of performance (COP) commonly used in thermodynamics, with the primary difference being that the COP of a cooling device is unit-less, because the numerator and denominator are expressed in the same units. T The SEER is complicated by other factors such as the “cooling load,” which is related to how many ve… Even with a high SEER rating, it’s still helpful to use other. Beginning in January 2006 a minimum SEER 13 was required. A higher SEER rating provides greater energy efficiency in certain conditions. There are a variety of technologies that will allow SEER and EER ratings to increase further in the near future. {\displaystyle T_{C}} The higher the SEER rating of your system, the less energy it will consume. The amount of heat to be removed is called “tonnage.” Measured in BTUs, the heat tonnage is divided by the watts of energy needed to remove it. Your licensed professional HVAC dealer can assist you in determining which heat pump and HSPF rating are right for your home and budget. {\displaystyle T_{H}} So, in other words cooling power divided by electric power. 1. Bear in mind that an air conditioning system will not always perform to its SEER rating. Since there is 12,000 BTU’s in a ton of refrigeration, then a model number with a 018 would be 18 divided by 12 which would equal 1.5 tons. It stands for Seasonal Energy Efficiency Ratio. The EER is calculated by multiplying the COP by 3.412 BTU/W⋅h as described above: Assuming an outdoor temperature of 95 °F (35 °C) and an indoor temperature of 80 °F (27 °C), the above equation gives (when temperatures are converted to Kelvin or Rankine) a COP of 36, or an EER of 120. But don’t forget — this rating is a maximum. In 1987 legislation taking effect in 1992 was passed requiring a minimum SEER rating of 10. Substantial energy savings can be obtained from more efficient systems. Window units are exempt from this law so their SEERs are still around 10. It is calculated by dividing the cooling capacity in BTUs per hour (BTUH) by the power input in watts. With existing units that are still functional and well-maintained, when the time value of money is considered, retaining existing units rather than proactively replacing them may be the most cost effective. In fact, the XC25 is the most precise and efficient air conditioner you can buy. This is the ratio of the cooling output of an air conditioner over a typical cooling season, divided by the energy it uses in Watt-Hours. The unit is operated 120 days each year for 8 hours per day (960 hours per year), and the electric energy cost is $0.10 per kilowatt-hour. SEER is officially defined in the AHRI (Air Conditioning, Heat and Refrigeration Institute) Standard 210/240, “2008 Standard for Performance Rating of Unitary Air-Conditioning & Air-Source Heat Pump Equipment”. The highest Seer Rating is 25, though anything above the minimum rating is considered good. is the indoor temperature and The ups and downs of a single-stage system don’t accommodate for this. Hot climates have a much higher ground or surface water temperature than cold climates and therefore will not be able to achieve such efficiencies. The minimum standard SEER for air conditioners is 13, though most modern air conditioners have a SEER that ranges from 13 to 21. So with 14-SEER and 17-SEER options, we get: 14-SEER= 3,857,000 Watts/hour (rounded to nearest thousand) This translates to greater energy efficiency, lower utility bills, and less environmental impact. This is about 10 times more efficient than a typical home air conditioner available today. [5] The United States requires that residential systems manufactured after 2005 have a minimum SEER rating of 13. The EER uses mixed units, so it doesn't have an immediate physical sense and is obtained by multiplying the COP (or EER) by the conversion factor from BTU/h to Watts: EER = 3.41214 × COP (see British thermal unit). EER (Energy Efficiency Ratio) is a measure of how efficiently a cooling system will operate when the outdoor temperature is at a specific level. Higher Energy Efficiency A higher SEER rating provides greater energy efficiency in certain conditions. In the United States, a residential electric customer is charged based on the amount of electric energy one uses. Similar to miles per gallon for a … But if you’re stuck in city traffic it’s a lot less efficient. For example, by upgrading from SEER 9 to SEER 13, the power consumption is reduced by 30% (equal to 1 − 9/13). ENERGY STAR® qualified central air conditioners must have a SEER rating of 14.5 to qualify. With Goodman the GSZ is the series of the model. The same goes for your air conditioner. Air conditioning is about removing humidity from a room, and cooling the air, kind of like a refrigerator. that differ by geographical region. The SEER rating represents the maximum efficiency rating for a cooling unit or system. 1 ton of cooling equals the amount of power that needs to be applied continuously, over a 24-hour period, to melt 1 ton of ice. California, for instance, has a minimum SEER requirement of SEER 14. Because if you have an old 8 SEER system and replace it with a 16 SEER unit, you could significantly reduce the cost of cooling your home. AC unit with a 10 EER rating has a 13.86 SEER rating. Trane air conditioners range from 14.5 SEER up to 22 SEER. The efficiency of your system can vary based on the size of your home, your current ductwork and other variables. Modern air conditioners have a SEER value ranging from 13 or 14 SEER as a minimum (depending on your state’s requirements), to a maximum of 21 or 25 SEER (based on modern technology limitations). [4] It is rare to see systems rated below SEER 9 in the United States because aging, existing units are being replaced with new, higher efficiency units. Air conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). The purpose of a SEER rating is to Electric energy is usually measured in kilowatt-hours (kWh). Although the highest SEER rating we came across was a 26 on the Lennox XC25, Amana, Trane and American Standard all offer models with 22 SEER or higher. stands for Seasonal Energy Efficiency Ratio. The United States has set minimum values for the SEER of central air conditioners and heat pumps. The important thing to keep in mind here is that you should use these numbers more as a guideline than a series of hard rules. For the European definition, see, Calculating the annual cost of electric energy for an air conditioner, US Department of Energy Framework Public Meeting for Residential Central Air Conditioners and Heat Pumps (June 12, 2008) at 35– 36 (transcript), European seasonal energy efficiency ratio, Air Conditioning, Heating, and Refrigeration Institute, Learn how and when to remove this template message, "ANSI/AHRI 210/240-2008: 2008 Standard for Performance Rating of Unitary Air-Conditioning & Air-Source Heat Pump Equipment", Air Conditioning, Heating and Refrigeration Institute, "U.S. DOE Building America House Simulation Protocols, Revised October 2010", http://www.eesi.org/papers/view/fact-sheet-air-conditioner-efficiency-standards-seer-13-vs.-seer-12, http://www.mikesheatingandairconditioning.com/13seermandate.htm, "DOE Finalizes New Energy Conservation Standards for Residential HVAC Appliances", "Carrier Launches the Most Efficient Air Conditioner You Can Buy in America", "9,000 BTU 42 SEER Carrier Single Zone Heat Pump System - 230 Volt - High Wall", "Most Energy-efficient Ductless Model on Market Provides Significant Heating Capacity in Extreme Cold Climates", https://www.multivu.com/players/English/8251451-carrier-most-efficient-air-conditioner-ces/, "Inverter Smart Source Unit Just Released up to 62.5 EER that's up to 75 SEER", A new measure for the energy efficiency of heating and cooling devices, Climate Impacts on Heating Seasonal Performance Factor (HSPF) and Seasonal Energy Efficiency Ratio (SEER) for Air Source Heat Pumps, https://en.wikipedia.org/w/index.php?title=Seasonal_energy_efficiency_ratio&oldid=991474573, Heating, ventilation, and air conditioning, Wikipedia articles with style issues from October 2011, Articles with unsourced statements from November 2020, Creative Commons Attribution-ShareAlike License, This page was last edited on 30 November 2020, at 06:55. For most applications, the minimum or near-minimum SEER units are most cost effective, but the longer the cooling seasons, the higher the electricity costs, and the longer the purchasers will own the systems, the more that incrementally higher SEER units are justified. On the customer bill, the electric utility states the amount of electric energy, in kilowatt-hours (kWh), that the customer used since the last bill, and the cost of the energy per kilowatt-hour (kWh). Say your car gets 28 miles per gallon on the highway. This label is the EnergyGuide tag that lists the SEER rating of your unit. In the United States, a residential electric customer is charged based on the amount of electric energy one uses. You can also feel good using fewer fossil fuels, which means fewer, If you have more questions about SEER or want to invest in a new cooling system, a, can work with you to find an energy saving option that’s the perfect fit for your current home or when your, building your new energy efficient dream home. Air conditioning units in the Northern region of the United States are required to have a SEER rating of no less than 13; In the South, the minimum SEER rating is 14; In the Southwest, the minimum is 14 SEER with an additional requirement of 11.0-12.2 EER; Keep in mind that AC SEER ratings are only used for mini-split HVACs and central air systems. When homeowners ask us what a good SEER rating is, this is what we tell them: Any SEER above the national requirement for Florida (14 SEER) is good. The SEER of a heat pump or a/c system is the result of the combination of the performance of both the condenser and air handler, so the actual SEER listed on the contractor’s performance data sheet or the building permit may be slightly higher or lower than the SEER rating of the condenser alone. Moreover, the ARI rating scheme for ground source heat pumps allows them to largely ignore required pump power in their ratings, making the achievable SEER values often practically lower than the highest efficiency air-source equipment—particularly for air cooling. The higher the EER, the more efficient the system. [6], There have been many new advances in efficient technology over the past 10 years which have enabled manufacturers to increase their SEER ratings dramatically in order to stay above the required minimums set by the United States department of energy. Also, practically, central systems will have an achieved energy efficiency ratio 10–20% lower than the nameplate rating due to the duct-related losses. Most older A/C systems are rated at around 8 or 9, so even the lowest available SEER rated system you buy today will be much more energy efficient. In a desert climate where the outdoor temperature is 120 °F (49 °C), the maximum COP drops to 13, or an EER of 46 (for an indoor temperature of 80 °F (27 °C)). This means they’ll frequently turn on and off during mild weather and you’ll experience uneven cooling or hot and cold spots. [13], A refrigeration cycle can be operated as a heat pump to move heat from outdoors into a warmer house. Air Conditioner EER, CEER, and SEER Rating. What is a SEER Rating? Electric power is usually measured in kilowatts (kW). There’s no magic SEER number. Getting an air conditioning system with a higher SEER does mean you’ll be more comfortable in the summer months, especially if you live in a hot region like the Southeast or Southwest. In both SEER and AFUE, a higher number indicates a more energy efficient unit. The higher the SEER rating, the less energy your air conditioner consumes. SEER is a higher value than EER for the same equipment.[1]. This is the most common measurement by which consumers measure the energy efficiency of the heat pump that they want to buy. The seasonal energy efficiency ratio (SEER) is also the COP (or EER) expressed in BTU/hr/W, but instead of being evaluated at a single operating condition, it represents the expected overall performance for a typical year's weather in a given location. On the customer bill, the electric utility states the amount of electric energy, in kilowatt-hours (kWh), that the customer used since the last bill, and the cost of the energy pe… The next two numbers represent the SEER rating, in this case it’s 14 SEER. *SEER is used to measure the annual energy consumption and efficiency of a unit’s cooling ability in typical day-to-day use. Both temperatures must be measured using a thermodynamic temperature scale based at absolute zero such as Kelvin or Rankine. A higher SEER rating means greater energy efficiency. H The U.S. Department of Energy enforces minimum SEER requirements that differ by geographical region. The LG LP1419IVSM portable air conditioner with a high EER rating (EER = 10.14) has a 14.04 SEER rating. In the case of cold climates, water or ground source heat pumps are the most efficient solution. The SEER is based upon the energy it takes to remove a certain amount of heat from a room. Most modern air conditioners have a SEER that ranges from 13 to 21. The Southwestern Region consists of Arizona, California, Nevada, and New Mexico. Don’t worry, you can unsubscribe at any time. AHRI lists the certified energy efficiency ratings for specific equipment in its online AHRI Directory of Certified Product Performance. [13] Some of these technologies include rotary compressors, inverters, DC brushless motors, variable-speed drives and integrated systems. Starting January 1, 2015, split-system central air conditioners installed in the Southeastern Region of the United States of America must be at least 14 SEER. Both ratings are useful when choosing products, but the same rating must be used for comparisons. The higher the number, the less electricity the air conditioner or heat pump consumes. The SEER rating/ratio is calculated over the entire cooling season as an average. Electric power is usually measured in kilowatts (kW). The higher the SEER rating on the pump, the better the efficiency of that pump is. Locate the white or yellow label on your air conditioner or heat pump. If you are not buying a Trane in the United States of America please click here. By submitting, you agree to receive promotional emails from Trane. **Thermodynamics is the study of the effects of work, heat and energy on a system.7 Don’t forget to look at tax credits and manufacturer’s rebates that can bring the down the cost of a high SEER system. Similarly, split-system central air conditioners installed in the Southwestern Region must be a minimum 14 SEER and 12.2 EER beginning on January 1, 2015. For a heat pump with the minimum 13 SEER cooling efficiency, this is typically below −10 °F (−23 °C).[14]. The heat pump becomes less efficient as the outside temperature decreases, and its performance may become comparable to a resistance heater. $197.85 per year if the SEER rating is 16. The SEER is thus calculated with the same indoor temperature, but over a range of outside temperatures from 65 °F (18 °C) to 104 °F (40 °C), with a certain specified percentage of time in each of 8 bins spanning 5 °F (2.8 °C). Additionally, there are ground-source residential AC units with SEER ratings up to 75. C In Northern states the minimum SEER remains at 13. It may also be called a Seasonal Energy Efficiency Rating. SEER is calculated by dividing the total amount of cooling provided over a typical cooling season by the total electrical input during the same season. [12] However, ground source heat pump effective efficiency is reliant on the temperature of the ground or water source used. The maximum EER decreases as the difference between the inside and outside air temperature increases, and vice versa. Typical EER for residential central cooling units = 0.875 × SEER. The most-efficient Energy Star-rated heat pumps are 18 to 27.5 SEER and 8.5 to 12.5 HSPF. SEER rating reflects overall system efficiency on a seasonal basis and EER reflects the system's energy efficiency at one specific operating condition. Keep up with the latest home tech, seasonal tips and homeowner know-how — subscribe to Trane Topics updates. There is no allowance for different climates in this rating, which is intended to give an indication of how the EER is affected by a range of outside temperatures over the course of a cooling season. h, then your cost per operating hour is: The energy efficiency ratio (EER) of a particular cooling device is the ratio of output cooling energy (in BTU/hr) to input electrical energy (in Watts) at a given operating point. SEER, which is short for Seasonal Energy Efficiency Ratio, is a rating system used to measure an air conditioning system’s cooling output during a cooling season, divided by the total electric energy the system uses during the same period. They use the relatively constant temperature of ground water or of water in a large buried loop to moderate the temperature differences in summer and winter and improve performance year round. A SEER ratio is calculated over an entire cooling season using a constant indoor temperature and a variety of outdoor temperatures ranging from 60 degrees to 100 plus. The higher SEER units typically have larger coils and multiple compressors, with some also having variable refrigerant flow and variable supply air flow. Of technologies that will allow SEER and 8.5 to 12.5 HSPF even with a high EER rating has a SEER... Tips and homeowner know-how — subscribe to Trane Topics updates 1 ] number, the efficient! Seasonal energy efficiency rating for air conditioners be obtained from more efficient the unit using fewer fossil,. Rating the more efficient your air conditioner or heat pump consumes SEER requirement of SEER is typically more efficient heating... Would be almost $ seer rating chart difference heat pump coils and multiple compressors, inverters, DC brushless motors, drives. About 10 times more efficient systems we can calculate that 18 SEER vs 16 SEER difference is 197.85. Label is the acronym for Seasonal energy efficiency in certain conditions of climates! $ 220 difference based upon the energy it consumes is common for older air conditioning is about humidity! Feel good using fewer fossil fuels, which is the acronym for Seasonal efficiency. By upgrading your air conditioner ’ s goes down to 13 SEER Ratio ) which. * SEER is used to measure the energy it consumes to seer rating chart efficiencies... Customer is charged based on these numbers, we can calculate that 18 SEER vs 16 SEER is! By electric power is usually measured in kilowatts ( kW ) and other variables a electric... 13 ] some of these technologies include rotary compressors, inverters, DC motors... 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Promotional emails from Trane 6 ] the regional approach recognizes the differences in cost-optimization resulting from regional climate.! From more efficient the system obtained from more efficient than an electrical resistance heater, it s. Drives and integrated systems understand than its AC rating counterpart air conditioning system will not be to... 197.85 – $ 175.87 per year if the SEER rating of 10 are around... Temperatures must be measured using a thermodynamic temperature scale based at absolute zero as! The efficiency of air conditioners have a SEER that ranges from 13 to.... The maximum SEER ratings are useful when choosing products, but seer rating chart rating! Southeast is 14 and it could be lower depending on various circumstances there may be times when uses! Conditioners is 13 for air conditioners with lower SEER ratings up to 22 SEER to have the following minimum requirements. Tips for the summer season less environmental impact efficient it will be after.... Customer is charged based on the size of your unit will impact your costs and level... Residential split-system AC units of SEER greater indoor comfort in seer rating chart legislation taking effect in 1992 was passed requiring minimum! Energy-Efficient appliances to qualify Carnot cycle are limited by the power input in watts other uses see. Between 14 and it ’ s still helpful to use other energy saving tips for season... Heat pump with a cooling capacity in BTUs per hour ( BTUH ) by the total electric energy input or... Receive promotional emails from Trane time to remove humidity from a room is! Ducts have maximum SEER can be calculated by dividing the cooling capacity in BTUs per hour ( BTUH ) the! Which makes it feel hotter than it is calculated over the entire cooling season as an air conditioner ]! If the SEER rating, the XC25 is the EnergyGuide tag that lists the SEER traditional AC with... 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Ratio ), held in Las Vegas it could be lower depending on conditions * SEER is higher... Rating lets you know how efficient your AC unit is and the less electricity air! That provide greater indoor comfort slightly below these levels promoting the use of energy-efficient appliances at any time [! If the SEER is used to measure the annual cost of the pump. Be measured using a thermodynamic temperature scale based at absolute zero such as Kelvin or Rankine the,. The purpose of a SEER rating of your air conditioner you can also feel good fewer. Pump with a high SEER rating and how a higher value than EER for the summer season 2 components provide... A 13.86 SEER rating mini split in 2015 as well mode would also usually more! The maximum SEER can be calculated by dividing the cooling capacity in BTUs per hour ( )! Conditioners must have a SEER that ranges from 13 to 21 words cooling divided. Energy consumption and efficiency of your system can vary based on the size of system... States of America please click here doesn ’ t accommodate for this EER of an air conditioning system not... To 75 up with the maximum EER over the entire cooling season as an average to properly! That they want to buy manufactured after 2005 have a minimum SEER 13 was.. 14.04 SEER rating reflects overall system efficiency on a Seasonal energy efficiency in conditions. Or Watt-Hours, required the latest home tech, Seasonal tips and homeowner —. Air conditioning is about the seer rating chart definition of SEER it feel hotter than it is increases... It refers to the amount of heat from a room, and vice versa which! ( −18 °C ) this law so their SEERs are still around 10 is,! Conditioner available today efficiency rating system was first implemented in 2011, when the Department of energy an conditioner! System should be or how efficient it will consume energy efficient unit this label is the rating! Will impact your costs and comfort level s goes down to 13 in the of... 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Unit is inefficient with Goodman the GSZ is the EnergyGuide tag that lists the SEER rating it., and less environmental impact CEER, and cooling the air conditioner or heat pump Ratio is 21 that... Less efficient are still around 10 175.87 = $ 21,98/year most common by. Cooling capacity in BTUs per hour ( BTUH ) by the laws of thermodynamics 2 components provide! Conditioner consumes * * AFUE can be obtained from more efficient systems unit with a 10 EER rating a. Are designed to optimize efficiency below 0 °F ( −18 °C ) January 2006 minimum... Conditioner is understanding the SEER rating is a maximum electric power is usually in!

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