Best Air Conditioners for Energy Efficiency (2024)
Midea 10,000 BTU U-Shaped Smart Inverter Window Air Conditioner
Score: 9/10
Inverter technology and Energy STAR certification ensure low operating costs and eco-friendly performance.
Energy Efficiency
9/10
The inverter technology makes it significantly more efficient than a regular one, costing about 52 bucks a year to operate.
It does have an eco mode, which is cool, a timer, Wi-Fi connectivity, and different settings like Auto, Low, High, Cool, Sleep, and Swing. It is also ENERGY STAR certified, which is really cool.
Cooling Performance
9/10
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It is designed for rooms approximately 450 to 550 square feet in size.
It's nice and cold, and as you can see, it has a swing option, which is really cool.
Noise Level
8/10
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The idea of having the compressor outside the window makes it as quiet as approximately 32 decibels, which is really cool.
Ease Of Use
7/10
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It does have app usage as well as inverter technology.
You may need a screwdriver for the installation.
Build Quality
8/10
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The window actually fits in between, which is cool because if you've ever had a window AC unit, you have to lock it in place, and you lose your window and everything like that.
The first thing I noticed about this remote is that it's huge, and that's good because it's easy to lose the little tiny remotes. So, it's cool that it's a full-size TV remote; that's actually really neat.
LG 7,500 BTU Window Air Conditioner with Supplemental Heat,
Score: 9/10
Highly energy-efficient with dual-inverter technology, offering significant energy savings.
Energy Efficiency
9/10
This air conditioner offers unparalleled convenience and comfort with its low-noise performance.
This cooling capacity ensures efficient performance, effectively maintaining a comfortable indoor environment during hot weather conditions.
Cooling Performance
8/10
Quotes from Reviewers
The feature that impressed me the most was its cooling efficiency, even in the scorching Texas heat.
This air conditioner quickly cooled down the room, creating a pleasant and relaxing environment.
This cooling capacity ensures efficient performance, effectively maintaining a comfortable indoor environment during hot weather conditions.
Noise Level
9/10
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This air conditioner boasts impressive low noise performance, operating at sound levels as low as 50 dB in low mode.
This is a great unit, quieter than an old, tired unit.
Ease Of Use
8/10
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The remote control and digital display were user-friendly, enabling easy adjustments from anywhere in the room.
Installing the air conditioner seemed to be pretty easy, as it included an installation kit, making the process smooth and hassle-free.
Build Quality
8/10
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I trust this unit completely and hope that, down the road, I can still find one exactly like it.
The filter is easy to remove and clean.
Magshion 6000 BTU Window Air Conditioner
Score: 9/10
Modern and efficient, with no major drawbacks.
Energy Efficiency
9/10
This is what we call a modern or efficient air conditioner.
This unit was purchased from Home Depot three days ago.
Cooling Performance
8/10
Noise Level
8/10
Ease Of Use
7/10
Build Quality
6/10
9000 BTU Mini Split Air Conditioner, 23 SEER2 Mini Split AC
Score: 9/10
Remarkable energy efficiency with a high SEER2 rating, reducing consumption by up to 20%.
Energy Efficiency
9/10
Its advanced inverter technology reduces energy consumption by up to 20%.
This air conditioner impresses with its high SEER2 rating of over 20, translating to remarkable energy efficiency.
Cooling Performance
8/10
Noise Level
8/10
Ease Of Use
8/10
Build Quality
7/10
OLMO Alpic 9,000 BTU, 110 120V Ductless Mini Split AC
Score: 9/10
Highly efficient, using significantly less energy than traditional heaters.
Energy Efficiency
9/10
These re-certified ductless systems are highly efficient, using 25-50% less energy than electric zonal heaters.
The annual energy consumption is 12,200 watts.
Cooling Performance
8/10
Noise Level
9/10
Ease Of Use
7/10
Build Quality
8/10
Keystone 8,000 BTU Window and Wall Air Conditioner with 3,500 BTU Supplemental Heating
Score: 9/10
Highly energy-efficient with Energy Star certification and energy-saving features.
Energy Efficiency
9/10
This cold front unit offers several energy-saving features, including a check filter light, thermostat-controlled operation, sleep mode, and energy saver mode.
With its innovative inverter technology, this air conditioner not only cools effectively but also operates quietly and with exceptional energy efficiency.
Cooling Performance
8/10
Quotes from Reviewers
This window air conditioner doubles as a heater, offering both an 8,000 BTU cooling capacity and a 3,500 BTU heating function.
It is designed for spaces up to 350 square feet.
Three fan speeds and four-way directional vents allow you to control the direction and flow of air.
Noise Level
8/10
Quotes from Reviewers
This air conditioner not only cools effectively but also operates quietly.
In this review, we will delve into its cooling power, ease of installation, maintenance features, and more to provide you with a comprehensive understanding of the benefits it brings to your indoor comfort.
Ease Of Use
7/10
Quotes from Reviewers
A digital thermostat allows you to set the window unit to your desired temperature and will automatically maintain temperatures between 62 and 86 degrees Fahrenheit.
This combination heating and cooling unit is equipped with plenty of convenient features, including a 24-hour timer, a sleep feature, and a remote control.
Build Quality
7/10
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This product comes with a two-year warranty.
Installation hardware and weather seals are included.
ROVSUN 9000BTU Wifi Enabled Mini Split Air Conditioner & Heater
Score: 9/10
The unit is highly energy-efficient with a 23 SEER2 rating and DC Inverter technology, offering up to 30% power savings.
Energy Efficiency
9/10
It's a 120-volt device, so it will power up from a 120-volt source with a very low amp draw.
We are going to fill this with nitrogen, nitrogen, nitrogen.
Cooling Performance
9/10
Quotes from Reviewers
When the system is turned on, it shows a digital display of the temperature that we currently want, using this remote right here.
If you notice, it's right there and is going to read the current temperature coming out of the system. This is just for cooling right now.
Noise Level
8/10
Quotes from Reviewers
If you can hear it, you can hear the reefer releasing, which means that it's going into the lines and running to the indoor unit.
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Ease Of Use
8/10
Quotes from Reviewers
When the system is turned on, it shows a digital display of the temperature that we currently want, which can be set using this remote right here.
Since Crystal and I aren't professionals at installing this sort of thing, we ended up hiring Topnotch Heating and Air.
Build Quality
8/10
Quotes from Reviewers
We've got our factory flare, so we don't have to worry about any burrs or anything on it.
These are rated for 1,500 PSI.
Cooper & Hunter 18,000 BTU, 230V 19 SEER Ductless Mini Split AC
Score: 9/10
Highly energy-efficient with a 19 SEER2 rating, offering significant power savings.
Energy Efficiency
9/10
It also doesn't use a lot of energy, so this thing is running at pretty much maximum speed right now.
This Cooper and Hunter 18,000 BTU system is energy-efficient.
Cooling Performance
9/10
Quotes from Reviewers
This device immediately turned on. You can see that these louvers are electric, so even though it is in the far corner of my room, it will have no problem circulating the air-conditioned air everywhere I need it.
This is the fourth Mr. Cool unit I've installed, and this one is definitely good.
This thing is running at pretty much maximum speed right now, yet it is quiet.
Noise Level
9/10
Quotes from Reviewers
It is very quiet and also doesn't use much energy.
I'm five feet in front of it, and I can't even hear the central air from here.
Bestproductsreviews.com
Ease Of Use
7/10
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It's surprisingly easy. Mr. Cool changed everything because they engineered this system so that a DIY-er could install it themselves.
The remote control is nicer.
Build Quality
8/10
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This bracket design is really good. You hook it onto the top of the air handler, and then the bottom part snaps into position.
This is the fourth Mr. Cool unit I've installed, and this one is definitely good. They've made some small improvements.
LG AC 8,000 Window Air Conditioner, 115V, 340 Sq.Ft
Score: 9/10
Highly efficient with dual inverter technology and Energy Star certification, though not all units are on the Most Efficient list.
Energy Efficiency
9/10
It's so efficient because it's a dual inverter, so I don't have to worry about the performance running at the same time and the breaker popping.
I am very, very happy with it.
Cooling Performance
8/10
Quotes from Reviewers
I am still just as happy with this item as I was on the day I got it.
This cools the room like nothing else.
Noise Level
8/10
Quotes from Reviewers
Super quiet, quiet, and quiet.
That's still my favorite sound: this thing going up from 40 to 50 hertz.
Reviewed.usatoday.com
Ease Of Use
7/10
Quotes from Reviewers
I am still just as happy with this item as I was on the day I got it.
No, I still installed it improperly, and no, I don't plan to fix it.
Reviewed.usatoday.com
Build Quality
7/10
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I've had this item for about a year now, and I am extremely pleased with it.
It's still improperly installed, and no, I don't plan to fix it.
LG 6,000 BTU Window Air Conditioner
Score: 9/10
Highly energy-efficient with eco-friendly features.
Energy Efficiency
9/10
Go through all the different types, such as cool, energy saver, fan, or dry.
The air conditioner would then turn on by itself and run until the overall room temperature dropped below 72 degrees.
Cooling Performance
8/10
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I picked this one up, and it is perfect for what I need.
The air conditioner would then turn on by itself and run until the overall room temperature dropped below 72 degrees.
It really helps to keep the air cool during these hot summer months.
Noise Level
8/10
Quotes from Reviewers
This creates a low hum, but you can actually control the direction in which the air will flow.
Ease Of Use
8/10
Quotes from Reviewers
There is a remote for this, but these are all the options we have here.
Once you have this mode set, you can change the temperature by clicking these buttons or using them on your remote.
Build Quality
7/10
Quotes from Reviewers
This plug is quite long, so it doesn't have to be close to an outlet on your wall.