The LG LW1212ER is the latest in a series of LG air conditioners that includes 2010's LW1210ER and 2011's LW1211ER. Differences between the previous-generation units and the LW1212ER are small -- a 24-hour timer instead of a 12-hour one -- but the change in warranty from five years to one is disappointing. What doesn't disappoint is this unit's performance. Earlier models did very well in reviews, and while experts have yet to weigh in on the LW1212ER, early owner evaluations are completely positive. All say that cooling meets or exceeds expectations.
This model's features are typical for air conditioners of this capacity and price class, and include an electronic display, remote control, automatic restart after a power outage and a programmable timer. Most owners say installation is easy, but it can be more challenging with non-standard windows. The Frigidaire FRA126CT1 (Est. $350) is another choice in this size class, as are nearly identical versions of that air conditioner sold at Lowe's and Best Buy. Feedback for those is more extensive and mostly positive, but we spotted more complaints regarding noise.
You can find early reviews for the LG LW1212ER at HomeDepot.com. Although ConsumerReports.org has yet to test this air conditioner, its immediate predecessor, the LG LW1211ER, has been reviewed.
ConsumerReports.org tests more than 40 window-mounted air conditioners and rates their ability to cool their advertised space while staying energy-efficient and keeping noise levels low. These AC units also rated for brownout performance, ease of use and airflow direction. The LG LW1211ER -- the LW1212ER's nearly identical predecessor -- is included in the rankings.
Review: Air Conditioners Ratings, Editors of ConsumerReports.org, Not dated
About 10 owners review the LG LW1212ER here. Most say it works great and is easy to install, although one user with a non-standard window reports some challenges. He gives the air conditioner 4 out of 5 stars, but everyone else grants it a perfect score.
Review: LG Electronics 12,000 BTU 115v Window Air Conditioner with Remote, Contributors to HomeDepot.com, As of April 2012