Free Shipping


12,000 BTU Room Air Conditioner with 10.8 EER, 3.3 Pts/Hr Dehumidification, 24 Hour Timer, Auto Restart, Energy Saver and Remote Control


No Longer Available

Price Match Policy Price Match Policy
Printer Friendly Page Print
Share this item:

Additional Options


Foam Weather Seal For Air Conditioner

(5305516311) preview
+ $9.00 

Universal Air Conditioner Support - Light Duty (80 Lbs. Support)

(AC080) preview
+ $49.00 

Universal Air Conditioner Support - Heavy Duty (160 Lbs. Support)

(AC160) preview
+ $49.00 
Window Air Conditioner - LW1212ER
Make Summertime Living Easy and Breezy
Keep the summertime living easy and breezy. With 12,000 BTUs of cooling power, it'll cool down a room up to 550 square feet without draining your wallet. Think that feels nice It also has their Auto Restart function, which automatically turns the unit back on after a power outage - so you don't have to.

3 Cooling and Fan Speeds with Auto Cool
Three powerful cooling and fan speeds allow you to control the temperature of your room at your pace.

4-Way Air Direction
Enjoy the cool air even more with their 4-way air direction. By adjusting the deflection, air is directed up, down, left or right to move the air where it's needed most.

Electronic Touch Controls with Remote
Control the temperature of your room with just a push of a button. Their stylish remote control is easy to use and allows you to cool down from across the room.

Welcome To LG
LG Electronics USA Commercial Air Conditioning business is a leading player in the global air conditioning market, manufacturing both commercial and residential air conditioners and providing total sustainability and building management solutions. From consumer units to commercial air conditioning systems, LG provides a wide range of innovative products for heating, ventilating and air conditioning.

How To Choose A Room Air Conditioner
Compared to large capacity central units, room air conditioners have several advantages. The initial cost of a room air conditioning unit is significantly lower than the cost of central air. Because room air conditioners are designed for cooling small spaces, operating costs are reduced. And, room air conditioners can provide personalized temperature and humidity controls that central systems cannot.

Calculating Cooling Capacity
Cooling capacity is the critical factor in properly selecting a room air conditioner. Cooling capacity is measured in British Thermal Units (BTUs) and typical models will range in capacity from 5,000 BTUs to 28,500 BTUs.

Choosing an undersized unit will overwork the unit and it will not cool properly. Choosing an over-sized unit will cost more to buy and operate and it will not dehumidify properly.

We can help you to calculate capacity. Be prepared to provide specific information on:
  • Room Dimensions
  • A simple floor plan to show the location of doors and north-facing windows
  • The number of people it will serve
  • Sources of heat such as lamps, TV and appliances
  • An explanation of what's above the intended room
  • Your insulation provisions

Cooling Capacity by Room Size
Measure the length and width of the area to be cooled. Multiply the length by the width to determine square footage or square meters. Locate the room size in the chart below to select the appropriate BTUs. Then use the product information to select the unit for your room. When cooling rooms with uninsulated ceilings, great rooms, or southern or western sun exposures - step up to the next BTU size.

Room SizeBTU
Sq. Ft.Sq. m
15014 up to 5,000
16515 5,200

Air Conditioner Tips
Air flow - Keep air filters clean. Do not block air flow areas.

Roomside view - J-models feature concealed power cord storage, this eliminates excessive cord exposure when receptacle is located close to unit.

Wall Opening For RAB46/47/48 Cases
A finished opening of 26 1/8" x 15 3/4", clear of intrusions, is required. Keep clearance of 4" from side walls. Brick veneer or frame walls should have wood studding surrounding case to provide firm anchoring with screws. Case can be fastened directly to brick or block walls with screws sunk in lead expansion shields. NOTE: units should be caulked on all four sides of case to the building exterior to assure building integrity.
Energy Info
This air conditioner has an Energy Efficiency Rating of 10.8 and has an estimated yearly operating cost of $92.42.

Your operating costs will depend on your utility rates and use. The estimated yearly operating cost is based on the 2011 national average cost of $.1109 cents per kWh for electricity and an estimated number of operating hours of 750 hours.

For more information, visit
BTU Performance: 12,000 BTU
EER: 10.8
Energy Star: Yes
Dehumidification: 3.3 Pts/Hr
Dry Air Flow: 330 CFM
dBA Level (Indoor/Outdoor): 52/60 dBA
Est. Cooling Area: 550 Sq. Ft.
Thermostat Control: Thermistor
Air Direction: 4-Way
Remote Controller: Yes
Energy Saver Function: Yes
Timer: 24 Hr. On/Off
Fan Speed Cooling: 3
Fan Only Speed: 3
Compressor: Rotary
In Door Fan Type: Turbo
Type Air Discharge: Top Discharge
Outdoor Vent/Exhaust: Yes
Chassis Type: Slide In-Out
Color: White
Warranty: 1 Year Parts and Labor
Electrical Rating
Voltage/60Hz: 115 Volts
Watts: 1,110 Watts
Rated Amps: 10.2 Amps
Dimensions and Weights
Overall Width: 23 5/8"
Overall Depth: 22 1/16"
Overall Height: 15"
Net Weight: 81.0 Lbs.
Shipping Weight: 87.0 Lbs.
Stuffing Quantity (20 Ft./40 Ft.): 135/300
  • Performance
  • 12,000 BTU
  • Cooling EER (BTU/Watts) 10.8
  • Dehumidification (Pts/Hr) 3.3
  • Est. Cooling Area 550 Sq. Ft.
  • Features
  • 3 Cooling and Fan Speeds with Auto Cool
  • 4-Way Air Direction
  • Power Failure Auto Restart
  • Remote Control
  • Timer 24 Hr. On/Off
Info and Guides

Adobe Acrobat FileSpec Sheet

Adobe Acrobat FileOwners Manual

You will need Adobe Acrobat Reader to view and print pdf files

Adobe Reader
Product Reviews
Rated 4.3 out of 5 by 30 reviewers.
Rated 2 out of 5 by Specs not right I bought this unit for a work shed. It was important that the size was right. It wasn't , I had to remove the whole window for it to fit. It does not cool well either. The timer has not explanation how to use and we still have not figured it out. It also came with a dent in it. 4/23/12
Rated 5 out of 5 by This product is super cool! This LG window air conditioner is a great poduct. I purchased the unit to cool a large upstairs area in my home. It exceeded all my expectations for performance. The area is very comfortable now for my family and I to spend time in. I would say to anyone looking for a unit to do the job it was designed for, to purchase this one. 5/6/12
Rated 4 out of 5 by A quiet, but efficient unit! This air conditioner does a very good job of cooling a small NYC apartment—placed in a bedroom window, it still manages to keep the adjacent living room comfortable. It runs quietly and has a very flexible feature set. 6/6/12
Rated 4 out of 5 by Really like this product a lot EXCEPT FOR.... Bought this a/c, had it installed in window, tested it, and just waited for the first hot day. First hot day arrived, turned it on, and just made a clicking sound. Still under warranty so called LG. LG repairman came out and said that the motor was never screwed in to the chassis! So, while I love the is quiet, cools great, and simple to use...I have a problem with LG's quality control. How could they let a product go out without screwing in the motor! So if you're lucky enough to get one with the motor screwed in correctly, you will really like the product! 6/24/12
  • 2015-11-29 T11:05:39.174-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_30, tr_30
  • loc_en_US, sid_LW1212ER, prod, sort_default
1-4 of 30
Items to Compare

Quick LookQuick Look

Quick Specs
Quick Specs


  • Width : 23 5/8"
  • Depth : 22 1/16"
  • Height : 15"


  • Type : Window / Wall
  • Chassis Type : Slide Out
  • Wall Sleeve Included : No
  • Cooling Capacity (BTU) : 12,000 BTU
  • Maximum Cooling Amps : 10.2 Amps
  • Maximum Cooling Watts : 1,110 Watts
  • Heat : No
  • CFM Room Circulation : 330 CFM
  • Energy Efficiency Rating : 10.8
  • Control Type : Digital
  • Remote Control Included : Yes
  • PTAC : No
  • Window Type : Standard

Technical Details

  • Energy Star Rated : Yes
  • ADA Compliant : No
  • Plug Type : 5-15P
  • Voltage : 115 Volts
Are you a builder

© 2015, AJ Madison Inc. or its affiliates