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4.5 | 25 Reviews

12,000 BTU Smart Wi-Fi Enabled Window Air Conditioner, Cooling & Heating

LG LW1221HRSM

Features

  • Cooling: 12,000 BTU
  • Heating: 11,200 BTU
  • Estimated Cooling Area: 550 Sq. Ft.
  • LG ThinQ® Technology

Quick Specs

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner
  • Width: 23.63"
  • Height: 14.97"
  • Depth: 22.06"
  • Energy Star Rated: No
  • Cooling Power: 12000 BTUs
  • Heating Power: 11200 BTUs

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 54dB (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: 12,000 BTU
  • Heating: 11,200 BTU
  • Estimated Cooling Area: 550 Sq. Ft.
  • LG ThinQ® Technology
  • Multiple Cooling/Heating Speeds
  • Easy to Use Electronic Controls
Summary
Type Window Air Conditioner
Air Type Cooling/Heating
BTU 12,000
PERFORMANCE
BTU performance (Cooling) 11,500/12,000
BTU Performance (Heating) 9,200/11,200
EER 11.3
CEER 11.2/11.2
Dehumid. (Pts/Hr) 3.3
Dry Air Flow (CFM) 265
dBA Level (High/Mid/Low/Sleep) 58/54
Est. Cooling Area (SQ.FT) 550
Room Size 22' x 25'
Fits Windows 27"-39" W x 16" H
ELECTRICAL RATINGS
Voltage / 60 Hz 208/230
Plug Type 208/230/20 Amp
Watts (Cooling) 1,010/1,060
Watts (Heating) 2,900/3,500
Rated Amps (Cooling) 5.1/4.8
Rated Amps (Heating) 14.0/15.3
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 14.97
Product Width 23.63
Product Depth 22.06
Product Weight (lbs.) 89.1
Shipping Height 18.13
Shipping Width 27.06
Shipping Depth 23.63
Shipping Weight (lbs.) 97.9
Stuffing Quantity (20ft/40ft/40ft High) 108/228/285
Pallet Qty 8
TL QTY w/Pallets 240
TL QTY Floor Loaded 390
COMPONENTS
Cord Length 52''
LIMITED WARRANTY
Parts & Labor 1 Year
UPC CODES
UPC 048231605083

Quick Specs


  • Appearance

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner

  • Dimensions

  • Width: 23.63"
  • Height: 14.97"
  • Depth: 22.06"

  • Features

  • Energy Star Rated: No

  • Cooling Capacity

  • Cooling Power: 12000 BTUs

  • Heating Capacity

  • Heating Power: 11200 BTUs

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.

4.5 out of 5

84% of reviewers recommend this product.

5 Stars

Best thing I have done in years LG window 1 ton

gustavo gringo 9/9/2021

Since I installed this unit I jave saved lots of money in the last two months with air I ran the 220volt installed this unit in the best window and run it every day Much cheaper than my central air which is broken but not a throw away This cools my entire living spaces I have a smaller unit in the master bedroom that runs at night and the rest of the house doesnt have and doesnt need AIR BECAUSE WE ARE ONLY TWO PEOPLE LIVING IN THE HOUSE
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Works great

T1792 8/30/2021

Bought it for my she shed that I work in it has been working great cant wait for it to get cold so I can try the heater.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
2 Stars

Its OK

Sandra01 7/17/2021

Cools down a room just a bit. Honestly could have spent 100 more and bought a bigger one. This one doesnt bring down the temperature lower than 78 all day. At night it might get to 74. Not sure whats wrong here. I should have just saved my money . Or bought an off brand ac.LG is definitely not meeting my expectations. Its going to be a long summer Cant even return this because we threw out the box . 600 down the drain . And dont get me started on what I paid the electrician to install this. Has a different plug
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
1 Stars

Does not work

Ron know 7/10/2021

I bought this air conditioner and it does not work. Brand new just out of the box and as confirmed by the technician that arrived to access the status of the new unit: the new air conditioner has a faulty compressor.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

LG Electronics Room Air Conditioner

LD102 7/4/2021

The LG Electronics Room Air Conditioner cooling system with a 12000 BTU is much needed for this heat wave this summer in my area. Im enjoying it after braving the heat outside and coming back inside of my home to cool off. Its easy to install and set up. The quietness of the air conditioner is a plus for me. The design of the system adds a stylist and classy look to the room in my home. The cool features with setting the timer to turn off/on auto restart if the power cut off remote control works with Alexa Hey Google and smart speakers with ThinQ App from my phone. It also has a heating system built in with 11200 BTU for the winter season.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

1 Stars

Doesnt work

RayJ123 7/2/2021

I purchased this unit about three weeks ago. It has never ran. I have been waiting since it was installed for a warranty service call. I have got random emails requesting more info but no action from LG to date. Going back to Home Depot to see if they will honor the extended warranty. Very disappointed LG can send me this request for a review but cant support their products.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

Exactly what I was looking for

vic7770 6/20/2021

Easy to install easy to use. Looks great and relatively quiet. It cools the guest house perfectly. I also really like the feature that tells me when to clean the filter.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

This has great features

Rowzann 6/15/2021

I have never actually seen a window air conditioner that doubles as a heater. Living in South Florida it can be so incredibly hot that some rooms such as the garage cannot be used for storage. We installed this unit and the garage and it has made such a huge difference I feel like I have added an extra room to my home The fact that I cant control it from my iPhone just makes it that much better
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Tough little unit.

Courtney J 6/14/2021

Due to the fact that it needed a 240 V plug I needed to get some help from an electrician to get it in. But once it was properly installed it blows out insane amounts of cool air. Cooled down the living room kitchen and front and back doors very effectively. More than great to have to help deal with a typical Texan summer. The heating option is also extremely nice. Unit runs very quiet too and easy to set the wi-fi controls up. This does the job in cooling/heating up to 500 sq foot of area definitely recommending
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Great

Jaime19 6/14/2021

Excellent product brand quality value easy to assembly meassure perfect works very perfectly enchanted with my product thanks for give me the opportunity to try recommended like it so much to quiet everything perfect
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

3 Stars

240 Plug

JennS38 6/3/2021

I got this product all set up in my house. I went to plug it in and realized it had a 240 plug on it. I was not aware of that until this moment. I dont have that kind of plug in my house except for my dryer and there are no windows in my laundry room.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

5 Stars

Perfect for our rental

JenBr 6/1/2021

We own several rental homes that are older. One in particular is difficult to keep cool in the hot Texas summer. We selected this unit to add to that rental home. Our tenant is super happy with this unit. It is quiet cools the space effectively and efficiently. Love the remote feature as well. Everyone is happy
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

230 Volts Needed

Kathy F 5/31/2021

I had initially hoped to replace an old window unit with the LG LW1221HRSM but failed to notice the requirement for a 230 V outlet. Our old unit used a 120 outlet. The side of the box lists 4 things to check with this being the last. If you do not have a plug that looks like the picture below it will not work. That said we found another use for it and the room size more compatible to the recommendations. The installation kit that comes with it is great we just needed to add some of our own double sided tape as the one included didnt stick. One person is able to install the outer box and window kit by themselves but since the unit weighs 90 lbs. it is best to have two people to slide it into the box. There are many levels of cooling and heating available and it is great to be able to turn it on remotely usually an hour before we will be using the room
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Great features

Sharonn26 5/31/2021

I got this air condition and I love it. No need to get up and lower or higher the temperature anymore. It has a remote to use anytime I need. Works great to keep the air cold in this texas heat. Definitely a must have. Works great with alexa or Google as well.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Great product

Ccc123 5/28/2021

This fit my window perfectly - is perfect for a warm summer day in Michigan where we dont have AC. Super easy to use love that its remote controlled so you can adjust while youre in bed. This product is amazing and was straight forward to install
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Cool

Aneroks 5/28/2021

I received LW1221HRSM A/C 12000 but window unit with heat from tryitsampling. I have a two bedroom 1 bath trailer and it was put in the front living room and my entire trailer stays cool. And I had my friend install it. Its almost one hundred pounds and he said it had very easy instructions.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Awesome

Jpsp8184 5/28/2021

All I can say is wow I dont really thing this AC would be any different from the others I have bought but you can definitely tell the difference on the cold air it pushes out. Its very easy To Install and use. Me and my wife love it
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Modern AC/HEAT

Daisymae9624 5/27/2021

I needed a new larger AC unit and this LG fit what I was looking for. A couple of things to know before you buy: It weighs almost 100 pounds in box AND You will need a 240 V plug. It comes packaged really well but is easy to unpack. It comes with all the installation parts you need but not tools. It was a relatively easy install with clear directions in the manual that came with it. Once operational there were many different options to choose how to run it. I chose the Energy Saver mode and it cycles on and off to keep the room at the temperature which was 70 in my case. It has a delay timer but my AC runs all the time as I live in Florida. It keeps my house very nicely cool. I love the remote so if I want to change the modes or fan speeds I can do that without getting up and going over to the unit. The LG AC does have a WiFi connection. To use it I downloaded the app LG ThinQ and from the app you can connect the AC to your smartphone. The front panel has a filter light which will come on when it needs cleaning. The front opens UP for easy access to the filter. I just brush mine off with a brush. This LG overall is a very modern appliance and the look is compact sleek and stylish.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

awesome window ac unit

jm99 5/24/2021

great window ac unit that is easy to install and operate. has both heat and cooling. works well is not very loud like most smaller ac units. has wifi cabability to control from your smart phone and a remote. overall really solid product.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Great Air Conditioner

Scotty M 5/24/2021

This AC is a perfect way to add a modern looking AC to a medium sized room or garage With the 12000 btu size this ac is recommended for rooms that are approximately 550 square foot. Correctly sizing the unit will ensure maximum efficiency. This unit is heavy about 90 pounds but can be installed by one person if necessary. You need to have at least 16 inches of height and 27 inches of width. In order to use the install kit that comes with the AC you cannot have a window wider than 39 inches. If you do youll likely need to add some flashing around the outside of the window. You will also need 220v power supply within 15 feet of the unit for power. Not only does this unit come with a remote but it can also be operated by a smart phone app and voice assistants like Alexa and Google. The removable filter has a indicator light that lets you know when in needs to be washed. If youre in the market for a window unit for a 500-600 square foot room this is a perfect modern solution. I would strongly recommend you consider this unit.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Great Product

Pamelasue 5/24/2021

I was so excited to get this air-conditioner for my bedroom. The installation was very easy. I have been wanting me one with both cooling and heating for along time now. This is really easy to operate. It also comes with a remote control which I really like. It cools my bedroom in no time I had to put it on energy saver. With it continuously running it got to cold. So after it cooled off outside I tried the heating. Oh man Im gonna love this this coming winter. It really puts the heat out. Im really impressed about this LG cooling/heating system. Im hoping it will last my family and I for years to come. You wont be disappointed in this brand or unit.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Great little AC unit

TomFerg 5/24/2021

This AC blows COLD I love it. I installed it in the window in my garage and it has made my garage COMFORTABLE It works great. The wifi part is really cool. I can turn on the AC from my phone while still in the house so it can pre-cool the garage before I get out there. I usually turn it on about 15-20 minutes before heading out there and it is powerful enough to have the garage cooled down when I get out there. I havent tried the heat portion of it yet but Im sure it will work just as well as the AC does. It was pretty easy to install it took me about an hour and a couple of adult beverages. Just make sure you have 220v available near the inside of the window luckily I already had power there as I was always planning on adding an AC unit in the garage.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Man Cave/Workshop Necessity

JWLOURIE66 5/20/2021

I got the LG Room Air Conditioner with heat for his workshop. It was easy to install and before you know it it was chilly Turned on the heater it was toasty warm. The remote control stays on his work space....no getting up and down to change the settings. He loves it LG is an incredible brand that I rely on when selecting a product. We are very happy with the unit... And you will be too
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Great Product

TX33 5/18/2021

I love this unit. It was easy to install and it definitely helps cool down the house. The product is of great quality and you will be surprised of how quiet it runs. If you need some extra cooling to your house this product is the way to go. Great product at a good price. I have been very satisfied with it.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

5 Stars

Comfort all year

Evusha 5/18/2021

This window air conditioner is perfect for heating and cooling our temperature controlled storage room. It removes the humidity and keeps the room very comfortable. Its easy to direct the air to where it is needed and the controls are easy to use. Cant beat an LG product
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review