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4.8 | 9 Reviews

23,000 BTU Smart Wi-Fi Enabled Window Air Conditioner, Cooling & Heating

LG LW2421HRSM

Features

  • Cooling: 23,000 BTU
  • Heating: 12,000 BTU
  • Estimated Cooling Area: 1,420 Sq. Ft.
  • LG ThinQ® Technology

See More

 
Cooling & Heating

LG window air conditioners provide powerful cooling and heating. Stay comfortable all year long, with our advanced technology.


Control Your Cool from Anywhere

Control key air conditioner features from your phone or favorite smart speaker with the ThinQ app.


Quiet Operation

LG window air conditioners operate at sound levels as low as 62dB (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.


Maximum Usability

Operate with LED display and simple selection control panel, up/down temperature adjustments, and fan speed selection, using the full-featured remote without leaving your bed, workspace, or couch.


Installation Kit

This window unit comes with our simple and convenient installation kit so you can set up your air conditioner with ease.


Filter Check Reminder

The Clean Filter LED lights up to notify you that the filter needs to be cleaned.


Slide-out Washable Filter

Maintenance is easy: simply remove the filter and wash it.


Made to Perfection

LG window air conditioners add powerful performance and stable durability to perfectly match your window frame.

Features

  • Cooling: 23,000 BTU
  • Heating: 12,000 BTU
  • Estimated Cooling Area: 1,420 Sq. Ft.
  • LG ThinQ® Technology
  • Multiple Cooling/Heating Speeds
  • Easy to Use Electronic Controls
Summary
Type Window Air Conditioner
Air Type Cooling/Heating
PERFORMANCE
BTU performance (Cooling) 22,500/23,000
BTU Performance (Heating) 9,800/12,000
EER 9.8
CEER 9.8/9.8
Dehumid. (Pts/Hr) 6.5
Dry Air Flow (CFM) 560
dBA Level (High/Mid/Low/Sleep) 64/62
Est. Cooling Area (SQ.FT) 1420
Room Size 36' x 40'
Fits Windows 29'-41" W x 18" H
ELECTRICAL RATINGS
Voltage / 60 Hz 208/230
Plug Type 208/230/20 Amp
Watts (Cooling) 2,290/2,340
Watts (Heating) 3,100/3,670
Rated Amps (Cooling) 11.5/10.6
Rated Amps (Heating) 15.0/16.0
FEATURES
Wi-Fi Connection Yes
Thermostat Control Thermistor
Air Diflection 4-Way
Remote Controller Yes
Auto Restart Yes
Energy Saver Function Yes
Timer 24 Hr, On/Off
Filter Alarm Function Yes
Fan Speed: Cooling (Heating) 2 (2)
Fan Only 2
In Door Fan Type Blower
Type Air Discharge Side by side
Outdoor Vent / Exhaust Yes
Chassis Type Slide In-Out
DIMENSIONS/WEIGHTS
Product Height 16.84
Product Width 25.50
Product Depth 30.50
Product Weight (lbs.) 134.2
Shipping Height 21.19
Shipping Width 29.38
Shipping Depth 33.00
Shipping Weight (lbs.) 149.6
Stuffing Quantity (20ft/40ft/40ft High) 84/168/168
Pallet Qty 8
TL QTY w/Pallets 90
TL QTY Floor Loaded 272
COMPONENTS
Cord Length 52''
LIMITED WARRANTY
Parts & Labor 1 Year
UPC CODES
UPC 048231605106

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

4.8 out of 5

100% of reviewers recommend this product.

5 Stars

Perfect for my she-shed

brandil 6/9/2021

I needed a more powerful window unit for my she-shed that I use as a photography studio. This one cools very quickly and I am excited about the heat as well come winter. My absolute favorite features are the ability to control the unit from the app so that I can properly prepare the studio for a client just a few hours before without actually going out there which is helpful for early morning sessions as well as the ability to just have it turn on at certain times. My husband found this to be easy as he has installed window units previously but very heavy which is to be expected. You will likely need a second person to help with the install. The display is user-friendly and the overall appearance is pretty minimalist.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Terrific features but watch out for the plug

floridia 6/2/2021

First this works like a charm. Its far less noisy than expected and actually quieter than one about half the size. I like the ability to sync with my favorite apps I like the remote and I like the actual controls which are intuitive to use even without reading. A few things to keep in mind or consider prior to purchase are the size...I double checked the dimensions for installing into a window prior to purchase but you might also want to consider how far this extends outside the window and the type of support to be used. Its big and heavy. Fortunately I had help so it wasnt a big deal but this will be a challenge for someone doing it on their own. Next - and this was far less easy to resolve - this has a non-standard plug due to the size of the unit. Its a 230 v and a simple little adapter will not work since it doesnt draw sufficient power from the existing outlet. You will either need access to a 230 outlet or plan accordingly. Still a powerhouse that provides both heat and cool for a large area.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Highly recommended window unit with great feature

Jan07 6/1/2021

This window unit is a game changer for us My husband does a lot of work in our garage/shop and with the Texas weather hes forced to do work either very early in the morning or wait till its late in the afternoon because the weather here is crazy hot especially during summer. Having this unit is a complete game changer. We have a 4 car garage and half of it is use mainly as a shop and this unit cools the work area pretty quick. And the best thing about it is everything is completely programmable and controllable through the app which makes it pretty convenient The assembly of this unit is easy and straightforward. Everything is provided and ready except for one which I will mention in a bit. To mount this unit you need at least 2 people because other than the weight of the unit it is quite massive. We like it that it comes with some kind of an enclosure which you can easily mount to the opening and once secured you can easily slide the unit itself and secure it. We also like the look of this unit and its functionality that is very user friendly. An important thing to point out about this unit is that it requires a 240v/20amp breaker which is not standard to most homes luckily my husband works as an electrician before so he knows what needs to be done on our end to make it work but I know for others this might require hiring a professional. Overall this unit is really great and we highly recommend it
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

4 Stars

Powerful and full featured AC

jefftest 5/30/2021

This is a large powerful AC that can cool up to almost 1500 sq. ft. It requires 240 volts and while it installs easily you definitely want a helper as it weighs a lot It can be voice controlled through Amazon Alexa or through Hey Google and can also be controlled through a phone app from LG called ThinQ. But the feature I find most useful is being able to program it to come on before I come home so it is cool but not running all day using electricity. We also have power outages often in my rural area and it has a great Auto Restart feature so it comes back on after an outage. It also has a filter alert to tell you when it needs cleaning and it is very easy to remove it and wash it. This unit works well and has all the features- I only took away one star because it is not at the really high level of efficiency for AC units.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Powerful

Bauder2009 5/25/2021

The LG air conditioner and heating was pretty simple to get up and running. The directions was easy to read and understand its very powerful and will cool off a large room really fast. It is heavy and a two man job but its definitely worth it . The remote is easy to use the heater is really great also. It doesnt blow hot air its warm air and will make a room warm on the cold nights.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

4 Stars

A really cool A/C.

jereome 5/19/2021

I got this AC to cool my master bedroom which is generally hotter than the rest of the house and this AC does an excellent job of keeping the room cool. One feature that I really like is that you can program this AC to turn on at a certain time so that you arent wasting energy trying to keep a room cool when you arent there. And an even better feature is that I can actually control the AC with my phone through the LG ThinQ APP. As far as installation goes it was rather simple even though the instructions werent that good. I would like to point out a couple of things though. First for a window unit this AC is massive and weighs a ton. Be sure to have someone else there to help you move the unit around and to help you install the unit. But despite the weight of the unit the installation was rather easy and the supports that are included with the AC work perfectly fine. My second point is that you need a 230v/20amp plug for this unit. So be advised that this unit will not plug into your standard 120 volt / 20 amp outlet. And my last comment on this AC is that it needs better weather stripping for this AC because if you have a good rain storm water will get in the house. Other than that one point this AC does an excellent job but be advised about the previous points and plan accordingly.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Just what I needed

MartinT 5/19/2021

I live in south Florida and it is hot about 90 of the time. The heat makes any area that is not air conditioned unusable. I enjoy tinkering around in my garage doing projects but I usually have to wait until evening when it cools down. I finally broke down to get an AC unit for my garage. I wish I would have done it sooner. This unit is easy to install and includes everything you need to do it. It gets cold quickly and is easy to program. I especially like the programing because I can set it to start just before I come home from work. I definitely recommend this air conditioner.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Amazing Very impressed

AmbiS 5/19/2021

This LG Electronics Air Conditioner cooling and heating unit is really amazing. My first time using one of these. After receiving we immediately decided to set it up. It can cool up to 1300 Sq ft. The only thing is youd require to get a 240 power adapter plug in outlet or converter to use this. It can be bought at any given hardware. Im truly impressed by the ThinQ technology and its functionality. Easy to set up and have up and running. Definitely would recommend this to my family and friends alike 5 star for me
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Just in time for summer

Jose55 5/18/2021

Perfect Smart Wi-Fi Window Air Conditioner for warm summer days. No more sleepless nights AC cools my bedroom to give me a comfortable night sleep. It was easy to install. Will definitely recommend anyone looking for an AC/heater replacement.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review