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11,800 BTU 115-Volt Through-the-Wall Air Conditioner with ENERGY STAR and Remote
  • LG Electronics
  • Model LT1216CER
  • Internet #206795958
  • Store SO SKU #1001812413

11,800 BTU 115-Volt Through-the-Wall Air Conditioner with ENERGY STAR and Remote

$54999 /each
Discontinued Model:

Model # LT1213CNR

Internet #203656246

Store SO SKU #1000004215

LG Electronics 11,500 BTU 115-Volt Through-the-Wall Air Conditioner with Remote

Discontinued LG Electronics

11,500 BTU 115-Volt Through-the-Wall Air Conditioner with Remote

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Product Overview

This 115-volt unit cools rooms up to 550 sq. ft. with a cooling capacity of 11,500 BTU. The LT121CNR Through-The-Wall Air Conditioner quickly and efficiently cools medium to large rooms. The unit is designed with easy-to-read digital controls and a digital display for simplicity of use. Plus, this unit features a convenient 24-hour on / off timer. The interior unit shuts off when the timer setting is reached. The Auto restart function automatically restarts this unit to the programmed setting when the electricity comes on after a power failure. Wall sleeve sold separately.

  • Designed to cool approximately 550 sq. ft
  • 11,500 BTU cooling ensures your comfort
  • Installs through the wall with a wall sleeve (not included). Through-the-Wall (TTW) wall sleeve sold separately
  • 3-speed cooling and fan lets you select the right setting to suit your needs while affording a range of adjustment to deliver comfort
  • 4-way Air Direction: Enjoy the cool air even more with our 4 way air direction. By adjusting the deflection, air is directed up, down, left or right. So you can move the air where it is needed most
  • Digital Electronic Touch Controls: Control the temperature of your room with just a push of a button
  • 24 hour On/Off timer lets you create a cooling schedule without wasting electricity. An energy efficient programmable timer that can turn on your air conditioner before you arrive home or turn off after you leave
  • Remote control that is stylish and easy to use which allows you to cool down from across the room
  • Washable and Reusable air filter saves money on replacements
  • Automatically restarts after a power failure. There are storms, high winds and extreme heat that can lead to power outages. Keep yourself covered with AutoRestart, which automatically turns the unit back on when power is restored
  • Removes up to 3.8 pints of moisture from the air in a hour to control humidity
  • Dimensions: 24 in. W X 14-16/39 in. H X 20-4/43 in. D
  • Voltage / 60 Hz: 115

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$499.99 /each
$549.00 /each
$549.99 /each
$549.99 /each
Name 9,800 BTU 115-Volt Through-the-Wall Air Conditioner with ENERGY STAR and Remote 11,500 BTU 115-Volt Through-the-Wall Air Conditioner with Remote 11,800 BTU 115-Volt Through-the-Wall Air Conditioner with ENERGY STAR and Remote 11,800 BTU 230-Volt Through-the-Wall Air Conditioner with ENERGY STAR and Remote
Brand LG Electronics LG Electronics LG Electronics LG Electronics
Ratings (13) (15) (54) (14)
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Assembled Depth (in.)
20.09 in
Assembled Height (in.)
14.41 in
Assembled Width (in.)
24 in
Cut-Out Front to Back Width (in.)
16.72 in
Cut-Out Height (in.)
15.53 in
Cut-Out Left to Right Length (in.)
25.88 in
Product Depth (in.)
Product Height (in.)
Product Width (in.)


A/C Cooling Rate (BTU/hr)
A/C Coverage Area (sq. ft.)
Air Conditioner Product Type
Through the Wall Unit
Air direction/circulation
Amperage (amps)
Automatic shutoff
BTU Cooling Rating
11500.000 Btu/h
Color Family
Decibel (Sound) Rating
52 dBA
Decibel Rating
52 dBA
Decibel Rating (Indoor)
52 dBA
Decibel Rating (Outdoor)
61 dBA
Energy Efficiency Ratio (EER)
Filter Type
Filter light reminder
Heater included
Number of Fan Speeds
Number of cool settings
Product Weight (lb.)
Remote Control
Self-diagnostic tools
Sleep setting
Sleeve Included
Voltage (volts)

Warranty / Certifications

Certifications and Listings
1-UL Listed
Manufacturer Warranty
1 year parts and labor

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Customer Questions & Answers

Wall opening size. Need dimentionjs of unit -

Asked by: Anonymous
W 24" H 14.4 D 20"
Answered by: kimmie
Date published: 2015-09-20

Does Home Depot install.

Does Home Depot install and what is the approximate cost for installation of a wall air conditioner.
Asked by: Anonymous
Home Depot does install. Approximately $15.00
Answered by: kimmie
Date published: 2015-09-20

How is the through the wall sleeve ordered for this product. Is it inclued in the box? Description says NO but no information on how to order.

Asked by: Anonymous
Yes, the sleeve is included.
Answered by: kimmie
Date published: 2015-09-17

does home depot install through the wall air conditioners?

Asked by: Anonymous
Yes, Home Depot installs through the wall A/C
Answered by: kimmie
Date published: 2015-09-20
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Customer Reviews

11,500 BTU 115-Volt Through-the-Wall Air Conditioner with Remote is rated 3.7 out of 5 by 15.
Rated 5 out of 5 by from Works great This A/C unit works great right out of the box. No problems so far, and is fairly quiet for a through the wall A/C.
Date published: 2013-05-23
Rated 1 out of 5 by from Ran for two days. The unit ran poorly for two days after installation then completely died. Called home depot, they referred me to LG service. LG service took four days to come out on a service call. I will have a four day wait for parts then they will need to take the unit to the local repair shop to complete the work. No estimate on how long that may take. Now for the good news, it was only ninety-two today not the ninety-four they had forecast : )
Date published: 2013-07-17
Rated 4 out of 5 by from Great product, easy installation This is the perfect unit for our place. The guidelines supplied with the AC unit and the sleeve made the installation a breeze. The Unit is quieter than I expected and the remote control is useful.
Date published: 2013-12-24
Rated 4 out of 5 by from it works good, takes longer to cool 375 sq ft. then they say ship it fast , easy to in stall littel slow at cooling the room
Date published: 2014-03-05
Rated 5 out of 5 by from This product is doing all that I wanted This A/C was badly needed/excellently installed and was up & running in no time cooling a small ranch house...just perfect.
Date published: 2013-08-06
Rated 5 out of 5 by from Good ones are great! We love this AC unit and find that it cools more than we thought it would. We have a very old unit in the living room on its last legs (we sort of pretend it is cooling the room) and plan to replace it next summer with the 220V version of this unit because we are so happy with this one. This unit, placed in our bedroom, actually helped lower the temperature in the living room considerably. We face West and are on the third floor of our building so it can get very hot in the afternoons. This unit worked great on days it was in the high 90's. We did have a problem in that the first unit delivered to us rattled itself apart as soon as we turned it on. It made a horrible rattling noise and shook. I turned it off quickly. When I turned it back on the compressor worked but not the fan. After waiting 5 days through the heat and then counting the hours until it was delivered, this seemed cruel, to be able to hear the compressor and not feel any cool air! I called the LG phone number and the help person thought that we did not have enough electrical power - this must be a common issue, but after I told her I did not have the 220V unit that needed a dedicated circuit, and that we had 20 amp service throughout the house, and pointed out that the unit was a 12 amp unit, she still thought that perhaps the unit was not getting enough power to start the compressor. At this point I turned the unit on and held the phone up to the unit for her to hear that the compressor was on. Then she said that a repair team would come look at it or we could have a replacement unit. I wanted someone to fix it right away, but a four day wait was the best they could do. I ended up calling Home Depot. They were WONDERFUL! They called LG and tried to get me help sooner. They also clarified that if the repair people found the unit to be unrepairable that they would then order a new one. At that point we decided to just go for the new unit since we needed to wait anyway for the repair. It would be another 5 days. I told the Home Depot person that I had read that other people seemed to find that the units rattled horribly and she spoke with the LG person who said that the units are small enough for the people on the delivery trucks to handle easily and so they are not always careful with them - hence the problem upon arrival. (This seems an incredible waste of labor and material!) So in the end we were slated for another 5 day wait through the hottest part of the summer, but Home Depot somehow managed to get us a unit in just 2 days! We were very appreciative. The unit sticks out into the room about 5 inches - which I did not expect, and though it seems that our sleeve in the wall is the appropriate size. Also it is somewhat noisy, though not as noisy as our old unit. We find that it cools very well! We will replace the othe unit in our home with the larger version next summer - well next spring!
Date published: 2013-08-15
Rated 5 out of 5 by from This product looks nice in my office. I did my research and checked out countless wall units and I kept coming back to this one. Nice clean look and sooooo cold. I love it! I also Love LG products.
Date published: 2013-10-08
Rated 1 out of 5 by from When went to install it didn't work. The fan wouldn'[t even blow. Upon closer inspection our carpenter noticed the back corner was broken. Dropped at the warehouse? Will be returning for exchange as the carpenter already installed the new wall sleeve.
Date published: 2013-08-10
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