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3.8 | 12 Reviews

18,000 BTU Window Air Conditioner, Cooling & Heating

LG LW1816HR

Features

  • Cooling: 18,000 BTU/Heating: 12,000 BTU
  • Estimated Cooling Area 1,000 Sq. Ft
  • Multiple Cooling/Heating Speeds
  • Easy To Use Electronic Controls

Quick Specs

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner
  • Width: 25.50"
  • Height: 16.84"
  • Depth: 30.50"
  • Energy Star Rated: No
  • Cooling Power: 18000 BTUs
  • Heating Power: 12000 BTUs

See More

 
Cooling & Heating

LG window air conditioners provide powerful cooling and heating. Stay comfortable all year long, even in extreme climate, with our advanced technology.


Quiet Operation

LG Window Air Conditioners operate at sound levels as low as 57dB (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.


Made to Perfection

LG window air conditioners add powerful performance and stable durability to perfectly match your window frame.


Maximum Usability

Operate with LED display and simple selection control panel, up/down temperature adjustments, and fan speed selection, using the full-featured remote without leaving your bed, workspace, or couch.


Installation Kit

This window unit comes with our simple and convenient installation kit so you can set up your air conditioner with ease.


Filter Check Reminder

The Clean Filter LED lights up to notify you that the filter needs to be cleaned.


Slide-out Washable Filter

Maintenance is easy: simply remove the filter and wash it.

Features

  • Cooling: 18,000 BTU/Heating: 12,000 BTU
  • Estimated Cooling Area 1,000 Sq. Ft
  • Multiple Cooling/Heating Speeds
  • Easy To Use Electronic Controls
  • Window Installation Kit Included
COMPRESSOR
Compressor Rotary
DIMENSIONS/WEIGHT
Fits Windows 29"-41" W x 18" H
Net Weight (lbs.) 126 lbs
Product Dimension (WxHxD) 25.50" x 16.84" x 30.50"
Shipping Dimension (WxHxD) 29.38" x 21.19" x 330"
Shipping Weight (lbs.) 139 lbs
ELECTRICAL RATINGS
Rated Amps (Cooling) 7.8/7.3
Rated Amps (Heating) 15.0/16.0
Voltage / 60 Hz 208/230V
Watts (Cooling) 1, 560/1, 600
Watts (Heating) 3, 100/3, 670
FEATURES
Air Deflection 4-Way
Air Discharge Type Side Discharge
Air Filter Washable
Auto Restart Yes
Chassis Type Slide In-Out
Energy Saver Function Yes
Fan Speed Cooling 2
Fan Speed Heating 2
Fan Speed Only 2
Filter Alarm Function Yes
Indoor Fan Type Blower
Outdoor Vent / Exhaust Yes
Remote Control Yes
Thermostat Control Thermistor
Timer 24 Hr, On/Off
Window Installation Kit Yes
MATERIALS/FINISHES
Color White
PERFORMANCE
BTU Performance 18, 000
BTU performance (Cooling) 17,500/18,000
BTU Performance (Heating) 9, 800/12, 000
CEER 11.1/11.1
dBA Level (High/Mid/Low/Sleep) 61/57
Dehumid. (Pts/Hr) 5.5
Dry Air Flow (CFM) 430
EER 11.2
Est. Cooling Area (Sq. Ft.) 1000
SUMMARY
Type Window Air Conditioner
UPC CODES
UPC 048231379526
WARRANTY
Parts & Labor 1 Year Parts and Labor

Quick Specs


  • Appearance

  • Type: Air Conditioner
  • Style: Window/wall Air Conditioner

  • Dimensions

  • Width: 25.50"
  • Height: 16.84"
  • Depth: 30.50"

  • Features

  • Energy Star Rated: No

  • Cooling Capacity

  • Cooling Power: 18000 BTUs

  • Heating Capacity

  • Heating Power: 12000 BTUs

Interactive Tour

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Extended warranties are usually very inexpensive and can save you thousands in the future. Some can even cover extra costs that result, such as cost of food that spoils when your fridge dies. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Appliances can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new appliances should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.

3.8 out of 5

75% of reviewers recommend this product.

5 Stars

Id buy it again

Webscrambler 8/18/2023

Excellent for both heating and cooling my house This is my second purchase of this model.
Originally posted on lg.com

Yes, I recommend this product

1 Stars

Joe Heihn 8/13/2023

Svc person has been out twice. Decibal noise is loud. I researched quite a few other models and your company described this particular model was to be the quietest. Not true. Very dissapointred. Would not recommend this one.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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Quality

 

Value

 
5 Stars

Great Window Unit

Spencerh 6/12/2023

Bought this in April of 2023 and so far it works great. Cant say much for Lowes handling of the unit Not LGs fault. Installed this thru the wall easily enough no sleeve needed imo. All outside grills are open. Cools great time will tell regarding the heating functionality.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

The very best

MVH44 6/10/2023

I bought my air conditioner in marchof 2023 knowing it was going to be hot and my old a c could not keep up last year...best move ive made. Not only is it stylish i stay comfortable all the time and it has literaly lowered my electric bill 1/2 of what it was last year this time. The auto mode feature is fantastic
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
4 Stars

Bought it for the heating function

TrustyShellback 3/14/2023

The unit works good and even held its own fairly well down to 10F. Eventually it stopped working because the unit froze up from the ice storm which kept it from starting by putting resistance on the fan which impacted the system which is designed to soft start. LG was very responsive to check the unit and all was well. While the unit is sized reasonably for our house the layout of our windows and floorplan contributes to the unit short cycling. This causes us to tweak air movement and settings to try and reduce this. It would be helpful if you could program a temp range to increase the spread between triggering on and off. Our house is very old and has zero insulation in the walls which allows for ambient temps to swing fast and with a narrow temperature spread constantly triggers the thermostat.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Quality

 

Value

 
5 Stars

Service needs

James Forte 1/1/2023

Bought this unit July 2019. Had it installed properly in my double garage and it worked very well for cooling and heating until now. I cleaned the filter on a regular basis. Since it has stopped heating in December 2022 I have called LG for a referral to get someone that can fix the unit. I have not received a response yet that has led to someone able to fix my unit. I honestly dont care about entering any kind of drawing. I just want someone to fix my LG 18000 Btu ac/heater. From the time I purchased it in July 2019 until now December 2022 does not seem to be a satisfactory service life considering the price I paid for the unit.
Originally posted on lg.com

Yes, I recommend this product

Features

 

Quality

 

Value

 
5 Stars

Timely delivery easy installation if youre handy

Kenneth L 8/23/2022

Purchased approximately a month ago to replace a 24 year old Fredricks. Operates quietly and efficiently.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Value

 
1 Stars

CHARLES THURMAN 7/18/2022

Worst mistake I have ever made only 9 months old and it took a dump made a loud thump then quite working. Went out 6/30/22 Still waiting on tech to come out and repair it .
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

So far so good

Jody Shilling 7/2/2022

So far so good. Works well. Quite and efficient. Neat
Originally posted on lg.com

Yes, I recommend this product

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Quality

 

Value

 
1 Stars

This is the worst ever

Total Dissatisfied 6/26/2022

Its summer time and my air conditioner went out 3 weeks ago and have not been able to get a scheduled service technician as of today.
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

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Value

 
4 Stars

replacement AC/heater

LeighFL 6/18/2022

We had an LG AC/Heater in our living room window. It kept us cool through 5 Florida summers. When the compressor stopped working we tried to have it repaired but couldnt find anyone who would/could repair a window unit. We bought a new unit that has more BTUs and hopefully it will last longer than 5 years. It is a beautiful unit with an easy to clean the filter. The one problem we have with the unit is how loud it is when running even on Fan 1. In order to hear the TV we have to turn it off.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Quality

 

Value

 
4 Stars

Does the job

Rubyhog 4/24/2022

I use it in my upstairs garage the heating and cooling feature is very convenient this is my second unit thanks
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Quality

 

Value