Though the LG LW8012ER is not evaluated in professional tests, an earlier model, the LW8010ER, gets great scores for cooling and above-average ratings for noise level. This version has nearly identical specs and features, but it lacks the earlier model's great five-year warranty. It also has a few durability problems. However, it's still the most impressive performer we found for cooling a medium-sized room (up to 350 square feet).
Powerful, efficient, and quiet. Users are virtually unanimous in praising the LG's cooling power. The manufacturer claims it can cool 340 square feet, but several owners say it can cool spaces that are much larger. An older version of this unit, the LW8010ER, also aces professional tests for cooling power and gets above-average ratings for noise, though its airflow to the left side is limited. Its successor, the LW8013ER, is also recommended based on these results.
Most owners agree that the LW8012ER runs quietly, although a few complain of noise from the compressor or the fan. The LG is Energy Star-qualified, with an energy efficiency ratio (EER) of 10.8.
Packed with features. Users love the LG LW8012ER's array of convenience features, such as the remote control, timer and economy setting. While most owners find the unit easy to install, this 59-pound model can be cumbersome. Moreover, a few owners say that installing the LG in windows can be tricky. One complains that the instructions don't work for those with storm windows, and a couple note that it's hard to screw the unit in place without damaging vinyl window frames. Another still says the unit doesn't drain well unless it's tilted downwards.
Watered-down warranty. TheSweetHome.com recommended this unit's predecessor, the LG LW8011ER, based on its "great combination of features" and impressive five-year warranty. The features are still there, but the warranty has been cut to one year for both the whole unit and the compressor. This is shorter than most warranties. However, most of the owners who report mechanical problems with this unit say they popped up in the first year. In fact, problems are likely to show up the first time the unit is switched on, leaving plenty of time to repair or exchange it.
The LG LW8012ER is not included in the latest air conditioner test at ConsumerReports.org. However, the older LW8010ER is tested, and the newer LW8013ER is evaluated based on its results for comfort, noise level and ease of use. We consider these results applicable to the LW8012ER as well.
Review: Air Conditioners, Editors of ConsumerReports.org, May 2013
HomeDepot.com has about 110 reviews for the LG LW8012ER on this page, plus another 80 or so on another page. Altogether, it earns about 4.3 stars out of 5 from users, who praise its fast, effective cooling, quietness, features and easy installation. There are a few durability complaints, though.
Review: LG Electronics 8,000 BTU 115v Window Air Conditioner with Remote, Contributors to HomeDepot.com, As of June 2013
The LG LW8012ER has more than 60 customer reviews at Walmart.com. Users give it 4.5 stars out of 5 overall, and 92 percent recommend it. Most owners say it's quiet, powerful and easy to install, but a few complain of its weight and noise level.
Review: LG 8,000-BTU Energy Star Window Air Conditioner LW8012ER, Contributors to Walmart.com, As of June 2013
The LG LW8012ER has only 35 or so reviews here, but they are overwhelmingly positive, with a near-perfect overall rating of 4.9 stars. Owners say the unit delivers fast, efficient and quiet cooling, and they praise its features and value. Their only quibble: Airflow is not well directed.
Review: LG LW8012ER, Contributors to AJMadison.com, As of June 2013
Reviewer Seamus Bellamy recommends window units based on online research and conversations with salespeople. His top pick for a small to medium room is the LG LW8012ER. Bellamy concludes that this unit "offers a great combination of features… and enough power to easily cool a 225-350 square foot space with some people in it."
Review: Best Air Conditioners, Seamus Bellamy, Updated May 29, 2013