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4.0 | 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.

4.0 out of 5

80% of reviewers recommend this product.

4 Stars

Great Buy then the Artic Wind 18000btu combo

Ken hookup 11/24/2022

Give great ac and great heat even at high speed. Happy for now
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Everything fits to the tee hands down

Jimmy41 11/21/2022

Best purchase Ive made highly recommend getting one again if this fails heat works great an heats well very well built unit thanks
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value

 
5 Stars

Perfect Size and easy installation.

Scooterz 11/20/2022

Product was perfect for a shop that needed ac and heat. Highly recommended
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
1 Stars

Worked great for 6 months and quit

Sdave1006 11/4/2022

I bought this unit due to the other one I had worked so well. However this unit worked for 6 months and quit. Self test shows nothing wrong but it doesnt cool.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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1 Stars

Room gets HOT even when its on cool and 60F

Alejandra Azuara 10/13/2022

I bought this AC about a week ago brand new from Home Depot and Im already having problems with it. It makes noise and I thought I installed it wrong but taking a closer look its some type of radiator or something thats shakes. It get annoying and I cant sleep. Next it doesnt cool. AT ALL I put it on the lowest temperature and leave my bedroom for 30 minutes and when I come back I get hit with a heat wave PLEASE DONT BUY THIS BRAND This ac was expensive and to have it not work properly just gets me and my husband angry
Originally posted on lg.com

No, I do not recommend this product

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Value

 
5 Stars

Perfect fit

Dea89 10/12/2022

Perfect fit for my new addition. Changed the garage into a big family room and got this LG to cool and heat it Its perfect.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Available

Happy the Have 9/3/2022

Really came through in a pinch. Central A/C went out had to get something quickly.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Grea Features easy to use

Randall Osbourn 8/16/2022

I bought 2 of these models about 2 months ago and I really do like them they were easy to install and the features on them were really easy to operate. they work very well where I have them and I havent had any problems at all I would Recomend These Units Hand down to my friends and family. Thank you LG for great product
Originally posted on lg.com

Yes, I recommend this product

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Quality

 

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5 Stars

ac with heat

Rosalinda 8/9/2022

I bought about 3 weeks ago and it has helped so much cooling r tiny home
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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1 Stars

I thought wrong

Hotinher 8/6/2022

After doing my homework I finally decided to get this unit and after paying someone alot of money alot of money to install a new breaker and plug and to run the new wire. I plug it n and nothing. Idk what Im gonna do my my wife threw away the box that had my receipt in.
Originally posted on lg.com

No, I do not recommend this product

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Quality

 

Value

 
5 Stars

Works well and super quick free shipping.

ColoJoe 8/3/2022

We originally found this unit as being the top of ten ACs for 2022. The model was unavailable so we kept looking to see what else LG had. We found the same unit with WI-FI. It was ordered on a Friday and was delivered free to Western Nebraska by Monday morning coming all the way from Georgia. If the heater works as well as the AC we will be double happy. This unit replaced a well used LG unit that had no Wi-Fi or heat.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value

 
5 Stars

Great product.

LIS73 Geraldine 7/17/2022

I bought this air conditioner plus heat to replace one just like it that Ive used for the last 13 years.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Ac plus heat unit

Jody Shilling 7/2/2022

Havent installed yet but other 2 bought at same time are working well so far.
Originally posted on lg.com

Yes, I recommend this product

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5 Stars

Great A/C and heater.

coozy1234 6/29/2022

Easy to install and works very well. This unit is exactly what I need to cool and heat my workshop.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Easy to follow features

Simplydevine 6/29/2022

Bought over a month ago to replace same type older unit. Operates as efficiently as last one and keeps my AZ room cool
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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1 Stars

Its not getting cool or blowing cool

Ksamuel1 6/28/2022

Get it as a gift from my parents had it in for a week still havent blown cold
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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5 Stars

Great AC unit

BTU 12000 6/25/2022

Bought this 3 weeks ago and have no regrets It cool the 400sq in less than 5 minutes.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

LG window A/C 12000 BTU

JBHdghtr 6/20/2022

I bought this for my 86 year old mother and it was installed in the wall where an old a/c was. We love how it works so efficiently and how it automatically goes on and off to maintain cool. We look forward to see how heat mode works this winter. It came with a remote which is wonderful for her. We are utmostly pleased with this purchase and would make this purchase again.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

LG AC w/heat

MSSut 5/24/2022

So far so good Installed in small living room/kitchen area and it do great for both cooling and heating
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Replacement AC/Heater for my apt. rental

Toadface 5/20/2022

The old AC heater stopped working properly so I checked around and purchased this attractive LG brand that has a remote and hooks into the WI-FI. Our renter is very happy since summer is already here in Texas.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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1 Stars

After my 3rd contact to customer service

Jackeyshen 5/18/2022

Purchased May 2021 broke down May 2022 2 days after the purchase date. My 3rd contact to the customer service. System recommended repair company does not repair AC. AI constantly tried to transfer me to someone does not know how to work with AC. Serial number was very hard to find. Why not put a sticker near filter? Still waiting for manager authorization.
Originally posted on lg.com

No, I do not recommend this product

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5 Stars

My heater aircond

Rudy 4 4/5/2022

I have this unit for about two months I am satisfied with it overall . The only issue I have there should be longer span between cycles maybe a couple of degrees
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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5 Stars

Great unit for the price

Mike in NOLA 3/11/2022

My small French Quarter condo had two really old units I replaced them with two of these. What a difference I havent used the AC function yet but the heat is great. Installation is relatively simple although I had to run to the hardware store for a few strips of 1x3s brand new ACs arent designed for 175 year old window lol. Absolutely spend the few extra dollars for the Wifi connection it takes a second to connect but isnt hard and being able to control them independently from the phone app while in bed like a super expensive dual zone system is the coolest Not having a drain line is a big plus for me I have a downstairs neighbor hopefully the slinger impeller can keep up with the South Louisiana humidity this summer.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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3 Stars

WiFi on window unit

Howard22 2/6/2022

I bought this last month and cant get the WiFi to work.
Originally posted on lg.com

Yes, I recommend this product

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3 Stars

Gets Iced up too easy

Barakjs 11/4/2021

Im a Renter. Landlord installed 2 years ago. Maintenance/Cleaning is a Pain. Needs Screen Cleaning every 2 weeks That Sucks. Should be longer period. The thing Iced-up almost pushing the front screen out. Told the Landlord. He said the back and Coils need a Hose Blast of a Water Hose every 2 years. Waiting him to come by next Tuesday. I have it set to 70 as always. Maybe it wont Ice-Up again.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value