AC Product Database

LG Dual Inverter (LW1022IVSM)

I recently installed the LG 10000 BTU dual inverter in a larger home and was blown away by the performance. It's the ideal window AC for larger spaces that need powerful and low-cost cooling.

Three aspects of this window AC stand out for me:

The LG LW1022IVSM performs so well because of the dual inverter technology.

These inverters adjust the AC cooling power more precisely and limit energy wastage, making it super efficient - over 25% more efficient than standard window ACs.

This AC unit is also surprisingly easy to set up and use. It has clear instructions (LG always gives simple guidance), and I'm confident anyone can install it- although it is slightly heavier than other units so may take two people.

The LG 10000 BTU dual inverter is also Wi-Fi enabled smart AC with smartphone control from anywhere using the LG ThinQ app, which can control all your LG appliances from one place.

This app interface is one of the most intuitive I’ve used and ideal for less tech-savvy users. It also integrates with smart home devices like Alexa and Google Assistant for voice control.

The LG LW1022IVSM does carry a premium price tag - but I think it's worth every penny.

There might be a better choice for pure efficiency, but I recommend the LG for low-cost cooling across larger areas.

GE Profile Inverter (AHTR10AC)

Until very recently, I was telling my customers that the best they could do for energy efficiency with a window AC was a 15 EER. 

This fits the bill for many of the products on my list, including the LG 10000 BTU Dual Inverter. 

Enter the GE Profile Inverter, which blows every "most energy efficient" window AC out of the water with it's industry leading 15.7 EER.

When I saw the impressive specs of this GE window air conditioner, I just knew I had to install one myself to see if it lives up to the hype. Spoiler alert: it does. 

GE's cutting-edge technology packs all the bells and whistles into one window AC, with an impressive inverter compressor that makes it not only the most energy efficient model on my list, but also the quietest. 

On sleep mode, the GE AHTR10AC inverter registers at just 40 dB making it one of the quietest window ACs.

I tested this noise rating against my refrigerator, and this GE model was actually quieter, overall!

It does get louder on some of the higher fan speeds, up to 57 dB. However, I feel that this is to be expected of 10000 BTU models, and is almost identical to that of the Frigidaire Inverter Quiet Temp. 

The GE Profile Inverter is Energy Star certified, which isn't a requirement for window ACs, but I do feel offers some peace of mind for my expectations on performance. 

It's estimated to cost about $49 to run annually (when considering about 8 hours a day for three months). 

Typically, I equate such energy efficiency and premium features with a high price tag, but I am impressed that GE offers this model below $500. It's worth every penny, in my opinion.

Frigidaire Inverter Quiet Temp (GHWQ103WC1)

Frigidaire is one of my go-to AC brands, and this window AC is one of my top picks for homes in hot areas that need year-round temperature control.

At 10,000 BTU, this powerful model can cool up to 450 square feet. 

While it does draw more power, 810 watts, it remains highly efficient with a 15 EER rating - in the top 1% of window ACs.

It uses up to 47% less than a standard AC and has even won an ENERGY STAR award for efficiency. 

By my calculations, it can run for under $48 a year, with one of the most impressive output-to-running cost ratios I've seen.

I value the efficiency, but I also really like the performance-enhancing features and design choices in the Frigidaire:

I find the Frigidaire app more challenging and less intuitive to set up than the LG ThinQ, but it does offer remote control from anywhere - ideal for pre-setting the temperature before you arrive.

My only real criticism of the AC is the noise levels - not because it's loud, but because it's not as quiet as advertised.

While it can run around 45 dB on the lowest settings, it's typically more like 55-65 dB.

It's not disruptive but less well-suited for bedrooms than the LG 10000 BTU dual inverter or Dreo units.

However, while I don't think the Frigidaire Inverter Quiet Temp GHWQ103WC1 is as cutting-edge as some models, I still think it's high-performing, energy-efficient, and competitively priced.

I recommend it for homes in hot areas that need powerful and economical cooling.

Windmill AC (10000 BTU)

Windmill is a newer company in the realm of window ACs, but they have put energy efficiency at the forefront and are quickly making waves as having the most stylish units on the market. 

I initially came across the Windmill AC when it made Time Magazine's Best Inventions of 2023 list. 

I'll admit that the aesthetically pleasing design drew me in, but I was equally impressed with its specs. I had to get one for my own home bedroom to test it out. 

Like the GE Profile AHTR10AC and Frigidaire Inverter Quiet Temp, this 10000 BTU Windmill model is rated for cooling up to 450 square feet. 

My bedroom is only 380 square feet, but it has vaulted ceilings to account for, so this size is perfect for me. 

However, the company also offers the same model in 8000 and 12000 BTUs if you need to size up or down. 

Using the national average for price per kWh, I estimate that this Windmill AC will cost me about 66 cents per day if I run it all night while I sleep.

I have used cheaper, less efficient models in the past that have cost me more than twice that daily, making those power hogs more expensive in the long run.

On top of its efficiency, the Windmill AC is one of the easiest to install ACs out on the market. 

It's dual insulation and double filtration featuring activated carbon (which helps with odors) are the icing on the cake for this beautiful AC. 

LG 14000 BTU Dual Inverter (LW1517IVSM)

The LG 14000 BTU dual inverter window air conditioner is one of my top picks for cooling studio apartments or large spaces.

This powerful yet efficient unit is ideal for hot areas that need serious cooling.  

At 1,240 watts, it's not the lowest energy draw but the 14.7 SEER rating ensures every watt is used effectively to deliver 14,000 BTUs of cooling.

It can cover up to 700 square feet - even more than the Frigidaire Inverter Quiet Temp.

Like the LG 10000 BTU, the dual inverter technology sets this AC apart from others I've worked with.

It supports a variable speed compressor system that increases the efficiency by 25-35% compared to a conventional AC unit.

Based on my calculations, you can run this window air conditioner for around $68 annually, $30-$80 cheaper than similar 14,000 BTU units.

But efficiency isn't the only thing I appreciate about this window air conditioner because the features make it low-maintenance and convenient:

I did find the installation trickier than the Frigidaire model because the kit wasn't the best quality. It's a minor issue, but I would allow more time for fitting.

The real downside is the price tag - as it's noticeably pricier upfront than my other top picks.

However, I think the cooling output, features, and long-term energy savings make it a clear value for money, especially in open-plan areas and hotter climates where reliable cooling is essential.

Dreo DR-HAC002

The Dreo DR-HAC002 was my go-to window AC in 2022 before I started working with the Midea and LG models, and I still rate it highly.

While it lacks some of the cutting-edge tech of those systems, it remains highly efficient with high-quality components, making it ideal for cooling larger spaces. 

What I like most about this AC is the high-efficiency compressor and advanced inverter technology that precisely adapts to match the conditions.

It uses around 35% less energy than a conventional compressor and can achieve a 15 EER rating.

The running costs of this unit are just $40-$45 annually (compared to an average of $60 for this size), allowing you to realize decent savings.

While the Dreo doesn't quite have the coverage of the LG LW1022IVSM dual inverter, it can still cool 300-350 square feet effectively.

Plus, it reduces the temperature faster thanks to a moving louver feature on the front that pushes air around the room evenly.

This adds to the efficiency, and I noticed a temperature drop almost immediately.

I appreciate the simplicity of the installation with the Dreo. It has panel seals, foam, and a putty material to seal the gaps.

It should take less than half the time of a standard installation, and I had it up in under 10 minutes.

The noise levels of the Dreo surprised me the most when I first used it because I was expecting a noisier machine - but it’s as quiet as 42 decibels. Considering it doesn't have a U-shaped design, that's impressive.

My only real criticism of the Dreo is the lack of smart features. The LCD remote is good, but the AC would benefit from Wi-Fi and integrations.

Overall, the design and performance of this machine are impressive. I recommend it for those who want a simpler model that's easy to install and low-cost to run.

MIDEA EasyCool Smart Inverter (MAW12HV1CWT)

The Midea EasyCool Smart Inverter is one of my top recommendations for exposed rooms or apartments needing year-round temperature control.

This powerful 12,000 BTU window air conditioner offers cooling and heating, making it one of the most versatile and efficient all-in-one options.

In terms of raw power output, it trails only the LG 14000 BTU model. However, unlike other high BTU options, Midea's inverter system keeps operating costs impressively low.

The 13.3 SEER rating makes it 35% more efficient than standard air conditioners.

Based on typical use, I estimate yearly running costs of just $60-$90- very low considering the output.

What I like most about this AC is its versatility. It has 5 operating modes, 3 fan speeds, an ECO setting for maximum efficiency, and even a dry mode.

The auxiliary heating function provides a boost when the temperature dips slightly. Although, I advise against relying on it because it can't operate below 41°F.

I also appreciate the user-friendly smart features. The Wi-Fi connectivity allows remote control and monitoring through Midea's intuitive MSmartHome app - one of the best I've used - and you can also configure voice commands through Alexa or Google Home.

I found the installation straightforward, with good-quality fittings for the window sill.

The unit fits practically any double-hung windows (24-38.5 inches), and at 51 lbs, most people can lift it solo.

I did find the noise output slightly higher than the advertised 45 dB - around 50-55dB on low fan and 60-65dB on high.

However, while it may not be as quiet as the Dreo DR-HAC002, or as powerful as the LG LW1517IVSM dual inverter, it's a great all-rounder for moderate climates. 

It is pricey, but an excellent long-term investment, and I recommend it for those seeking year-round comfort.

Related article:  Best window heat pumps for year-round comfort

Frigidaire Compact (FFRE053WAE)

The Frigidaire FFRE053WAE compact is on the opposite end of the spectrum to the LG LW1517IVSM dual inverter as this is a small unit with 5000 BTU cooling capacity.

It has the lowest power consumption on the list and is my top pick for a small efficient window AC.

There are 3 big reasons why I recommend this AC for compact spaces:

The efficient cooling isn't the only reason I recommend the FFRE053WAE.

It's also one of the easiest installations I've done, weighing just 41lbs and with easy-fit removable side panels.

The extra-long power cord also saved me from tripping over extension cords.

Plus, it has a small footprint and doesn't take up a whole room.

It's also surprisingly accessible, with front-facing access panels to easily access the washable filters.

One downside of this unit is the noise levels - I clocked it at 62 decibels on the higher fan speeds. I would still fit it in bedrooms but only run it on lower settings at night.

It also lacks Wi-Fi controls and integration. I like the electronic remote control and programmable timer, but it's less advanced than the LG 10000 BTU or DREO DRHAC02.

However, I think the FFRE053WAE hits the sweet spot for simple, efficient, and affordable cooling in small areas with a SEER rating, making it one of the most energy-efficient small window ACs on the market.

Does outside temperature affect wndow AC efficiency?

Yes, outdoor temperature can have a significant effect on AC efficiency. The hotter it is outside, the harder your air conditioner has to work, which will consume more power.

Are inverter window air conditioners more efficient?

Inverter ACs can be more efficient since they avoid the power-heavy spin-up sequence of rotary ACs. However, these ACs often cost more up-front.

How can I reduce my window AC’s power consumption?

You can reduce your AC’s power consumption by keeping it clean and well-maintained, lowering fan speeds once your room has cooled down, ensuring proper room insulation, and by using programmable timers or thermostats.

Is it cheaper to run a window AC all the time?

It can be cheaper to run an AC continuously as maintaining temperatures is easier on the machine than cooling a hot room. However, you should use an auto mode if possible to ensure the AC lowers its fan speeds when the room is cooled down.

How much electricity does a window AC use per hour?

A window AC may consume anywhere from around 400W to 1,750W of power — or even more. The electricity consumption depends entirely on the unit’s power and efficiency.