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LG LW1216ER Review

By: Carl Laron on June 02, 2017

Bottom Line

The LG LW1216ER is a top choice for big rooms, according to experts. It's rated at 12,000 BTUs, which is appropriate for a room up to 550 square feet. It's energy efficient, too, earning Energy Star Certified status. Noise levels, while not the absolute lowest in expert testing, are on a par with competing models, or better.


  • Cools quickly and efficiently
  • Dedicated dehumidifier setting
  • Very simple to operate
  • Slide out chassis
  • Quiet on low speed


  • Somewhat louder at high speed
Our Analysis

Breaking it down


It's the strong, sort-of-silent type. Expert reviews and user feedback indicate that the LG LW1216ER does a great job cooling down spaces up to 550 square feet. At ConsumerReports.org, it gets an Excellent rating for comfort, a Very Good for noise on low, and a Good for noise on high, putting it in the top echelon for all three factors among all machines tested in its size range. Some of ConsumerReport.org's testing is detailed by Mary H.J. Farrell in an article that is free to the public. In that overview, Farrell notes that the LW1216ER is one of the top performing large-sized air conditioners for 2017. At TheSweethome.com, Liam McCabe tests the LW1216ER's smaller sibling, the LG LW8016ER (Est. $240), and finds the LG's pitch is somewhat less annoying than other units they tested. User feedback, while limited, is fairly positive, too, including recommendations from 90 percent of the owners whose reviews can be seen at HomeDepot.com

Ease of use

The slide out chassis is a plus. LG's smaller-sized units get beat up a little as being challenging to install. That's why it's a pretty good thing that the LW1216ER has a slide in chassis (something those models lack) to make the task of getting this 81 pound unit in place quite a bit less back breaking -- and less dangerous. ConsumerReports.org goes so far as to say that it is easy to install, and the limited user feedback we see usually -- though not always -- agrees. Operation is relatively straightforward, with a basic remote and simple digital controls


Standard, one-year warranty. The warranty on the LG LW1216ER is as basic as its operation: one-year, with no extended warranty on the sealed system. We saw few complaints of durability issues, aside from a few units that arrived damaged in shipping, but LG's customer service comes in for some knocks on occasion, especially if you buy from an unauthorized dealer. If you buy from an authorized retail outlet, you may be better off appealing to their customer service departments. Otherwise, be prepared to be persistent, patient and polite.

Our Sources

Editors of ConsumerReports.org, Not Dated

Editors with ConsumerReports.org rate and rank the LG LW1216ER air conditioner. Testing is hands on, ratings are assigned, as is an overall score that can be compared to other air conditioners in the same size class. However, this report is only available to subscribers.

Mary H.J. Farrell, May 2, 2016

In this article, which is free to the public, ConsumerReport.org's Mary H.J. Farrell names the LG LW1216ER one of the top best large air conditioners for 2017."The feature-filled LG LW1216ER has digital controls, and cooling was top-notch," she says.

Liam McCabe, May 26, 2017

Liam McCabe tests the LG LW1216ER's smaller sibling, the 8,000 BTU LG LW8016ER, and that smaller model remains his top pick in window air conditioners in his most recent update. McCabe recommends the LW1216ER as the top 12,000 BTU window air conditioner for larger rooms, though it's important to note that some details will differ.

Contributors to HomeDepot.com, As of June 2017

User feedback for the LG LW1216ER is limited, but we found around 45 reviews at HomeDepot.com, including some that were originally posted at the LG web site. Overall, the air conditioner earns a rating of 4.2 stars.

Contributors to AJMadison.com, As of June 2017

This is the website of AJ Madison, a NYC retail store and authorized LG dealer. Most reviews here are pulled for LG's site, but there are a handful from the store's own customers. The LG LW1216ER earns a rating of 4.6 stars based on just over 25 reviews.

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