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3.3 | 10 Reviews

18,000 BTU Window Air Conditioner, Cooling & Heating

LG LW1816HR

Features

  • Stay cool or warm as needed with this 18,000 BTU Cooling /12,000 BTU Heating Air Conditioner
  • Stay comfortable with this LG Air Conditioner that cools up to 1,000 square feet
  • Choose between high and low speeds for cooling, heating and fan mode
  • Make temperature adjustments and fan speed selection on the easy to use control panel or remote

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

 
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Cooling & Heating

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

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Made to Perfection

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

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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.

Image Feature

Quiet Operation

LG window air conditioners operate at sound levels as low as 50dB (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.

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

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.

Quiet Operation LG window air conditioners operate at sound levels as low as 50dB (when in low mode) eliminating unnecessary noise for smooth operation that you'll barely notice.

Features

  • Stay cool or warm as needed with this 18,000 BTU Cooling /12,000 BTU Heating Air Conditioner
  • Stay comfortable with this LG Air Conditioner that cools up to 1,000 square feet
  • Choose between high and low speeds for cooling, heating and fan mode
  • Make temperature adjustments and fan speed selection on the easy to use control panel or remote
  • Our simple and convenient installation kit is included so you can set up with ease
  • The Clean Filter Alert lets you know when it's time to clean. Simply remove the filter to wash
  • Reduce power consumption with the Energy Saver Function
  • 208 /230 Voltage allows for efficient cooling
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
ENERGY STAR® Yes
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.

3.3 out of 5

60% of reviewers recommend this product.

1 Stars

Quit Heating

BobStewart 1/8/2024

Weve rarely used this window unit....less than 1000 hours of use over a 3-4 year period of use. Weve cleaned the filters after using for more than a few days every time weve used it. It just quit heating totally. Blows air...no heat at all. No troubleshooting has worked to help.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
1 Stars

Dellis 1/3/2024

Ive had this air-condition with heater for about 3 months I have a problem with it cutting on and off not running long enough to heat technician came out and checked it said it needed to be leveled if that didnt help he would come back out. When he gave his report he said that the problem was improper installation and wasnt the right size for the room and closed the ticket on it. So he lied to me and theres no way something can cut on and off be efficient would not recommend buying anything from LG
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
1 Stars

Disappointing product and experience

TGrapeguy 11/6/2023

Product started emitting antifreeze type smell after 16 months of operation. After contacting both Home Depot where we bought it and LG the manufacturer directly we were told it was over its 1 year warrantee and we could pay to have it repaired. We contacted two local AC repair companies who both told us that it would cost us about half the cost of a new unit to repair it and neither was interested in sending over a service tech. They both recommended that we simply buy a new unit. Very disappointing after spending $800 for the unit to work for little over a year. Customer service was very aloof and none offer any solutions to our problem very disappointing.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

Great Features

Nellie65 11/4/2023

I am very pleased with this product everything they said it was
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

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Quality

 

Value

 
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

Features

 

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