The Greatest Power Environment friendly Air Conditioners of 2022

The Best Energy Efficient Air Conditioners Option


Air conditioners are important on these sizzling and humid summer time days, however that reduction can come at a worth. An AC can shortly drive up a utility invoice. The common window air conditioner makes use of 900 watts of power per hour, whereas a central air-con unit can use upward of three,000 watts per hour on sizzling days. On the common utility price of 10 cents per kilowatt-hour, a central AC unit can add as a lot as $90 to your month-to-month utility invoice.

Fortuitously, there are energy-efficient fashions that may slash these utility bills. These Power Star–rated air conditioners use good expertise, inverters, and different cutting-edge applied sciences to lower the quantity of power an air conditioner makes use of. Learn on to be taught extra about what makes an air conditioner power environment friendly, and don’t miss our checklist of the very best energy-efficient air conditioners available on the market.

  1. BEST OVERALL: Lennox SL28XCV Air Conditioner
  2. BEST BANG FOR THE BUCK: Keystone Power Star 5,000 BTU Air Conditioner
  3. RUNNER-UP: Amana AVXC20 Air Conditioner
  4. BEST WINDOW AIR CONDITIONER: LG 18,000 BTU Good Window Air Conditioner
  5. BEST MINI SPLIT: MRCOOL DIY Gen-3 Mini Cut up Air Conditioner
  6. BEST PORTABLE: Whynter ARC-14S 14,000 BTU Moveable Air Conditioner
  7. BEST THROUGH-THE-WALL: Frigidaire 8,000 BTU By means of the Wall Air Conditioner
  8. BEST INVERTER: Midea U Inverter Window Air Conditioner
The Best Energy Efficient Air Conditioners Option


Varieties of Power-Environment friendly Air Conditioners

From central AC models to moveable fashions, air conditioners are available numerous sizes and shapes to swimsuit totally different wants.

Cut up Air Conditioners

A cut up air conditioner, sometimes called a central air conditioner, pairs a compressor and condenser positioned outdoors the house with an indoor unit that consists of the evaporator, air handler, and filters. One of these system makes use of ductwork that runs all through the home to chill all residing areas within the dwelling.

Packaged Air-Conditioning Programs

A packaged air-conditioning system consists of a compressor, coils, and air handler which might be all positioned in a single steel cupboard. This design saves indoor area by housing all of the AC’s parts outdoors. Just like a cut up air conditioner, a packaged air conditioner distributes the chilly air it creates by means of a community of ducts.

Window Air-Conditioning Items

A window air-conditioning unit consists of a steel field that incorporates all of the parts of an air conditioner: compressor, coils, and air handler. The field is mounted between the sash and sill of a window and works by drawing air in from a room, cooling it, then recirculating the chilled air to chill a single room. Heat air and moisture that the window unit creates as a byproduct of the cooling course of is expelled outdoors.

Moveable Air Conditioners

Moveable air conditioners encompass a stand-alone unit that homes a compressor, coils, and fan that sits on wheels. The air conditioner attracts air in, cools it, then redistributes it again into the room. Since moveable air conditioners don’t sit in a window, they’ve hoses that should be connected to a window to vent the nice and cozy air and moisture it creates.

Ductless Mini-Cut up Air Conditioners

A ductless mini-split air conditioner has a compressor condenser outdoors of the house that connects to a small air handler inside one room of the house to warmth that specific area.

By means of-the-Wall Air Conditioners

By means of-the-wall air conditioners are similar to window air conditioners of their building. Slightly than mount to a window, through-the-wall air conditioners mount to a gap in an exterior wall. One of these AC is right for individuals who wish to protect the home windows in a room.

Inverter Air Conditioners

Inverter air conditioners embody some ductless, through-the-wall, window-mount, and cut up air conditioners. One of these unit contains an inverter that regulates the quantity {of electrical} present an AC unit receives. Whereas a regular AC unit offers 100% of the air conditioner’s wattage at any time when the compressor is operating, an inverter regulates output in small increments, solely giving the compressor the quantity of power it wants to chill the room. This design makes the AC unit’s compressor as much as 40 p.c extra power environment friendly than a regular air conditioner.

What to Take into account When Selecting the Greatest Power-Environment friendly Air Conditioner

Air conditioners are assigned energy-efficiency rankings which might be useful when searching for the very best dwelling air conditioner—however solely the patron is aware of what they imply. Forward, be taught concerning the three forms of energy-efficiency rankings and different vital elements to think about when selecting the very best AC unit, together with measurement, BTUs, and good functionality.

Measurement and Sq. Footage

Discovering the right-size AC unit to swimsuit the area is vital. A unit that’s too small will run always to attempt to preserve the temperature cool. An air conditioner that’s too giant will cool the area too shortly, turning on and off briefly bursts that put undue put on on the compressor. With this in thoughts, it’s essential to verify the cooling capability of the air conditioner fits the sq. footage of the area it’s cooling by its BTU ranking.


BTU, or British Thermal Unit, is a measure of how a lot warmth an air-conditioning unit removes from a house in 1 hour. An AC unit’s BTU measurement is essential for figuring out what measurement air conditioner is required for a house or room. Air conditioners want about 20 BTUs for every sq. foot of residing area. This implies an 8,000 BTU window air conditioner is appropriate for a 400-square-foot room; a 54,000 BTU central AC unit can cool as much as 2,700 sq. toes.

Temperature and Power-Effectivity Settings

Air-conditioning models range the sophistication of their temperature controls. Cut up air conditioners and most mini-split AC models hook up with thermostats that enable the consumer to dial in particular temperature settings. Whereas some window and through-the-wall fashions additionally enable for particular temperature settings, some lower-end models have less-specific “excessive” and “low” settings.

Some window air conditioners even have energy-saver modes that scale back the quantity of energy the AC unit makes use of. When on this mode, the air conditioner alternates between cooling mode and fan-only mode, lowering the quantity of electrical energy the air conditioner makes use of but in addition lowering its cooling energy.

Excessive Power-Effectivity Scores

A number of rankings are used to delineate how power environment friendly an air conditioner is. Power Effectivity Ratio (EER) measures how effectively an air conditioner operates and is decided by dividing the air conditioner’s BTU ranking by its wattage. The upper an air conditioner’s EER, the extra environment friendly it’s.

CEER (Mixed Power Effectivity Ratio) is the usual by which the Division of Power charges the power effectivity of window-mount air conditioners. The ranking displays a window AC unit’s power use when it’s operating and when it’s in standby mode.

SEER is the ranking mostly used to measure the effectivity of central air conditioners, often known as cut up air conditioners. SEER rankings measure how nicely an AC unit will cool the house for a whole season. The upper an air conditioner’s SEER ranking, the extra environment friendly it’s. The common central AC unit has a SEER ranking of round 12; energy-efficient fashions may need a SEER ranking of 14 or increased.

The most effective AC models have an Power Star ranking, which implies the air conditioner meets federal tips for power effectivity. Most Power Star–rated window air conditioners should have an EER of round 12, which is considerably increased than the 8.5 EER ranking the typical window AC unit has. A central air conditioner should have a SEER ranking of at the least 14.5 to qualify for an Power Star ranking.

WiFi-Enabled/Good Options

Many air-conditioning models are ready to connect with a house’s Wi-Fi community, enabling good options. Customers can management a WiFi-enabled air conditioner through an app on a smartphone, scheduling on and off occasions in addition to temperature adjustments. Whereas these options add to the up-front value of an air conditioner, additionally they enhance its power effectivity by permitting the consumer to show the AC off or bump the thermostat up just a few levels when the room or dwelling isn’t in use.

Our High Picks

The fashions beneath are among the finest air conditioners available on the market for power effectivity. They’re Power Star rated and loaded with options that assist the proprietor regulate their use for max power financial savings.

The Best Energy Efficient Air Conditioners Option: Lennox SL28XCV Air Conditioner


The SL28XCV takes over for Lennox’s XC25, which had been broadly thought to be being essentially the most energy-efficient central AC unit cash might purchase with its 26 SEER ranking. The SL28XCV takes it up a notch by reaching sky-high effectivity rankings of 28 SEER and 17.6 EER, due to a variable-speed inverter compressor. These rankings put it nicely above the federal government’s minimal effectivity ranking of 14.5 SEER for Power Star–rated air conditioners.

Moreover, a consumer can reduce prices even additional by pairing the SL28XCV with Lennox’s iComfort S30 good thermostat to program on/off occasions and set schedules. The inverter compressor additionally has the additional advantage of being quieter than most AC models at simply 56 decibels. And whereas the excessive effectivity comes with a excessive price ticket, the Lennox could make up for these prices pretty shortly in power financial savings, because the SL28XCV is 63 p.c extra environment friendly than a ten SEER unit. The SL28XCV is available in 4 sizes starting from 22,400 to 57,000 BTUs.

Product Specs 

  • Power effectivity: 28 SEER
  • Kind: Cut up with inverter compressor
  • BTUs: 22,400–57,000


  • Excessive SEER ranking
  • Quiet operation due to inverter compressor
  • Works with Lennox’s iComfort S30 good thermostat


  • One of the vital costly AC models available on the market

Get the Lennox SL28XCV by means of a licensed HVAC contractor.

The Best Energy Efficient Air Conditioners Option: Keystone Energy Star 5,000 BTU Air Conditioner


The working modes and energy-efficiency ranking of this small window air conditioner make it a superb choice for anybody needing an reasonably priced option to cool a single room. With its 12.1 EER ranking, this Keystone mannequin is among the many most effective window air conditioners available on the market. Along with its Power Star ranking, it options working modes that enable it to chop much more power prices, together with an energy-saver mode and an on/off timer the consumer can program to show it off when the room isn’t in use.

At 5,000 BTUs, the Keystone is able to cooling areas as much as 150 sq. toes, making it top-of-the-line small air conditioner choices available on the market. It additionally comes with a distant management that doubles because the unit’s thermostat, making it simpler to function whereas additionally guaranteeing a fair temperature all through the area.

Product Specs 

  • Power effectivity: 12.1 EER
  • Kind: Window air conditioner
  • BTUs: 5,000


  • Wonderful energy-efficiency ranking
  • Distant management with built-in thermostat for even cooling
  • Programmable on/off timer


  • Solely appropriate for smaller rooms

Get the Keystone Power Star 5,000 BTU Air Conditioner at Walmart, The House Depot, or on Amazon.

The Best Energy Efficient Air Conditioners Option: Amana AVXC20 Air Conditioner


Amana’s Power Star–rated AVXC20 ranks as one of the crucial environment friendly central air conditioners available on the market, due to its 24.5 SEER ranking. Like different high-efficiency air conditioners, Amana achieves this ranking with an inverter varied-speed compressor that retains power use low. The AVXC20 can also be geared up with Amana’s ComfortNet thermostat, which gives extra potential for value financial savings by giving the consumer the flexibility to regulate the system remotely and set schedules to extend the temperature when nobody’s dwelling.

ComfortNet will even monitor the system and let the consumer know when it requires upkeep. Along with being power environment friendly, the AVXC20 is quiet. Its design features a sound-reduction cowl consisting of high-density foam.

Product Specs 

  • Power effectivity: 24.5 SEER
  • Kind: Cut up air conditioner
  • BTUs: 24,200–53,000


  • Excessive energy-efficiency ranking of 24.5 SEER
  • Comes with ComfortNet good thermostat system
  • Quiet operation design


Get the Amana AVXC20 by means of a licensed HVAC contractor.

The Best Energy Efficient Air Conditioners Option: LG 18,000 BTU Smart Window Air Conditioner LW1817IVSM


With its inverter expertise, this window air conditioner from LG is each environment friendly and quiet. This Power Star–rated air conditioner places out 18,000 BTUs on simply 1,250 watts, giving it an EER of 14.4 and making it the very best window AC unit available on the market in terms of effectivity. With its capability to chill areas as much as 1,000 sq. toes, it’s appropriate for giant household rooms and open flooring plans.

This air conditioner additionally has good controls, so the consumer can flip the unit off or on remotely and set schedules through a smartphone, which may get monetary savings by setting it to a better temperature when the room isn’t occupied. The LG is among the quieter window air conditioners available on the market, too, placing out simply 44 decibels whereas in sleep mode.

Product Specs

  • Power effectivity: 14.4 EER
  • Kind: Window air conditioner
  • BTUs: 18,000


  • Excessive effectivity ranking
  • Wi-Fi connectivity permits the consumer to regulate it remotely with a smartphone.
  • Able to cooling giant rooms
  • Quiet operation


Get the LG 18,000 BTU Good Window Air Conditioner at The House Depot or Lowe’s.

The Best Energy Efficient Air Conditioners Option: MRCOOL DIY Gen-3 Mini Split Air Conditioner


Whereas this Power Star–rated air conditioner’s 20 SEER effectivity ranking is spectacular, what actually units this 18,000 BTU AC unit from MrCool aside from different energy-efficient mini-splits is its good connectivity. It may hook up with Wi-Fi, permitting the consumer to show the air conditioner off or on, set schedules, and regulate the temperature—all through a smartphone. It’s additionally appropriate with Google Assistant and Amazon Alexa, and there’s a wall-mounted thermostat and distant management.

The gadget’s Observe Me operate permits it to sense temperatures by means of the distant for extra even cooling. This unit can also be perfect for individuals who don’t care to pay set up prices: It’s DIY-ready with strains which might be pre-charged with freon and fitted with fast connectors that make it simple to put in.

Product Specs

  • Power effectivity: 20 EER
  • Kind: Mini cut up
  • BTUs: 18,000


  • Excessive SEER ranking
  • Wi-Fi connectivity permits for smartphone management
  • Observe Me operate promotes even cooling
  • Design for DIY set up


Get the MRCOOL DIY Gen-3 Mini Cut up Air Conditioner at The House Depot.

The Best Energy Efficient Air Conditioners Option: Whynter ARC-14S 14,000 BTU Portable Air Conditioner


One received’t discover any Power Star–rated moveable air conditioners—the federal authorities doesn’t embody them in this system—but when they did, Whynter’s ARC-14S will surely deserve the ranking. With an 11.2 EER ranking, it’s the very best room air conditioner available on the market in terms of power effectivity. Its ranking is due largely resulting from its use of auto-drain expertise, a course of that recycles moisture collected through the cooling course of to create extra cool air, and using two exhaust hoses, a design that improves its capability to create cool air.

These applied sciences give the ARC-14S a formidable 14,000 BTUs, sufficient to chill as much as 500 sq. toes. Along with being highly effective and environment friendly, the ARC-14 additionally isn’t the eyesore that some moveable AC models are, due to its glossy black design and digital controls. Regardless of weighing 80 kilos, the ARC-14S stays movable on account of 4 ample casters that enable it to be rolled from room to room.

Product Specs 

  • Power effectivity: 11.2 EER
  • Kind: Moveable
  • BTUs: 14,000


  • Can cool bigger areas
  • Glossy design and digital controls
  • Auto-drain expertise creates extra environment friendly cooling


  • One of the vital costly moveable air conditioners

Get the Whynter ARC-14S 14,000 BTU Moveable Air Conditioner on Amazon, at Wayfair, or at The House Depot.

The Best Energy Efficient Air Conditioners Option: Frigidaire 8,000 BTU Through the Wall Air Conditioner


With its Power Star ranking, this 8,000 BTU air conditioner from Frigidaire is a superb choice for these on the lookout for a through-the-wall choice. It comes with a distant management that enables the consumer to set particular thermostat temperatures or interact one among its many modes. It additionally comes with an energy-saver mode and a timer that enables the consumer to program the unit to robotically flip off or on.

A 350-cubic-feet-per-minute fan offers ample circulation for this AC unit, which may cool bigger rooms. The thermostat positioned within the distant management permits for extra even cooling all through the room.

Product Specs

  • Power effectivity: 11 EER
  • Kind: By means of-the-wall
  • BTUs: 8,000


  • Consists of distant management with thermostat
  • A number of modes for power financial savings
  • Fast-cool operate quickly chills a room


  • Dearer than different 8,000 BTU through-the-wall fashions

Get the Frigidaire 8,000 BTU By means of the Wall Air Conditioner on Amazon.

The Best Energy Efficient Air Conditioners Option: Midea U Inverter Window Air Conditioner


This 8,000 BTU window air conditioner makes use of inverter expertise, which varies the move of power to the unit primarily based on demand, to realize a formidable 13.3 energy-efficiency ranking. That interprets to 35 p.c extra power financial savings over commonplace window air conditioners. Inverter expertise additionally makes the unit a lot quieter, with working noise ranges as little as 42 decibels.

This unit’s U-shaped design permits a window to shut considerably farther than could be attainable with conventional window AC models, serving to to restrict air loss. This novel design has the additional advantage of permitting the window to be opened with out uninstalling the air conditioner. And, because it’s Wi-Fi geared up, the consumer can management the unit and set on/off schedules remotely through an app.

Product Specs 

  • Power effectivity: 13.3 EER
  • Kind: Window
  • BTUs: 8,000


  • Excessive 13.3 effectivity ranking
  • Quiet operation
  • Wi-Fi geared up
  • Mounting type permits the window to open and shut.


  • Dearer than different 8,000 BTU fashions

Get the Midea U Inverter Air Conditioner on Amazon, at The House Depot, or at

Our Verdict

With a SEER ranking of 28 and good options that make it simple to optimize its operation, the Lennox SL28XCV is among the finest energy-efficient central air conditioners out there. For these trying to cool a single room effectively, the Keystone Power Star is a worthy alternative.

How We Selected the Greatest Power-Environment friendly Air Conditioners

We used quite a lot of standards to assessment greater than two dozen air conditioners of every type. On condition that our objective was to incorporate the very best energy-efficient fashions, we restricted our search to these with Power Star rankings. Of these Power Star–rated fashions, we leaned towards those with the very best effectivity scores.

We additionally favored these with options corresponding to Wi-Fi connectivity and timers that enable the consumer to additional management air-conditioning prices by guaranteeing the air conditioner isn’t operating at full capability when the room is unoccupied. Whereas value wasn’t a main issue, we did favor energy-efficient air conditioners that provide the very best bang for the buck.


Understanding how you can preserve and function an air conditioner to get essentially the most out of it’s key to retaining that utility invoice in test through the summer time months. Forward, study essentially the most environment friendly option to run an air conditioner and learn the way upgrading your getting older AC unit to a more recent mannequin can prevent cash.

Q. Do new air conditioners use much less electrical energy?

A brand new air conditioner typically makes use of much less electrical energy as a result of it’s extra technologically superior than older fashions. Air-conditioner compressors additionally cool much less effectively as they grow old, forcing them to work tougher and use extra power to chill the room.

Q. How can I scale back the ability consumption of my air conditioner?

There are a number of methods to cut back the ability consumption of an air conditioner. The obvious is popping up the thermostat to a better temperature. Clear the air conditioner and exchange the filter recurrently to make sure the air conditioner is in peak situation. If attainable, swap to a wise thermostat that permits you to schedule on/off occasions for the air conditioner, so it isn’t operating when it doesn’t need to.

Q. Is it cheaper to go away the air conditioner on all day?

It’s cheaper to go away the air conditioner on all day throughout sizzling temperatures. Turning off the air conditioner throughout sizzling and humid climate can shortly trigger warmth and humidity to construct up within the dwelling. This locations a pressure on the air conditioner to chill the house whenever you flip it again on. A greater choice is to regulate the air conditioner by just a few levels whenever you’re not dwelling.

Q. Is it cheaper to run AC or a fan?

Followers are less expensive to function than air conditioners as a result of they don’t use a compressor. It’s a good suggestion to make use of followers together with air conditioners to make the air really feel cooler, permitting you to extend the thermostat just a few levels.

Q. How environment friendly is a 20-year-old AC?

A 20-year outdated air conditioner is far much less environment friendly than in the present day’s fashions. An older air conditioner could use 6 kilowatt-hours of electrical energy to chill a mean home, whereas a contemporary system can use lower than 2 kilowatt-hours to chill the identical area.

Q. Which AC is extra power environment friendly: window or mini-split?

A mini-split air conditioner is way more environment friendly than a window unit. The common mini-split consumes 40 p.c much less power than a window air conditioner to chill the identical area.

Q. Is it cheaper to run a window air conditioner or central air?

It will depend on what you’re attempting to chill. In case your objective is to chill a single room, then a window air conditioner is the best choice. If you must cool a whole dwelling, it’s extra economical to make use of a central air conditioner than putting a window unit in each room of the house.

Supply hyperlink