Skip disability assistance statement.

Welcome to our website! As we have the ability to list over one million items on our website (our selection changes all of the time), it is not feasible for a company our size to record and playback the descriptions on every item on our website. However, if you have a disability we are here to help you. Please call our disability services phone line at 920-459-2480 during regular business hours and one of our kind and friendly personal shoppers will help you navigate through our website, help conduct advanced searches, help you choose the item you are looking for with the specifications you are seeking, read you the specifications of any item and consult with you about the products themselves. There is no charge for the help of this personal shopper for anyone with a disability. Finally, your personal shopper will explain our Privacy Policy and Terms of Service, and help you place an order if you so desire.

We Provide Service After the Sale!

Finance your purchase with a Bitter Neumann Credit Card

Apply Now

Providing LOCAL Professional Delivery and Service!

3.6 | 9 Reviews

11,200 BTU 230v Through-the-Wall Air Conditioner with Heat

LG LT1237HNR

Features

  • Universal Fit
  • Remote Included
  • Supplemental Heat
  • 2 Cooling, Heating & Fan Speeds

See More

 
Maximum Cooling

LG air conditioners provide exceptional cooling power that will keep you and your family cool, comfortable, and in control.


Made to Perfection

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


3 in 1 Operation

Use cool mode for powerful cooling and dehumidifying on hot days. In fan mode, the fan circulates the air in the room. Heat mode is ideal for cold nights.


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.

Features

  • Universal Fit
  • Remote Included
  • Supplemental Heat
  • 2 Cooling, Heating & Fan Speeds
  • Estimated Cooling Area 550 Sq. Ft
Summary
Type Through-the-Wall Air Conditioner
BTU 11,200
PERFORMANCE
BTU performance (Cooling) 11,000/11,200
BTU Performance (Heating) 9,200/11,200
EER 9.8
CEER 9.7/9.7
Dehumidification (Pts/hr) 3.8
Dry Air Flow (CFM) 290
dBA Level (Indoor / Outdoor) 59/65
Est. Cooling Area (sq. ft.) 550
FEATURES
Fan Speed Cooling 2
Fan Speed Heating 2
Fan Speed Only 2
Indoor Fan Type Turbo
Air Deflection 4-Way
Energy Saver Function Yes
Thermostat Control Thermistor
Remote Control Yes
Compressor Rotary
Air Discharge Type Top Discharge
Chassis Type Top Down
Auto Restart Yes
Outdoor Vent / Exhaust Yes
Timer 24 Hr, On/Off
Filter Alarm Function Yes
ELECTRICAL RATINGS
Voltage / 60 Hz 208/230 V
Cooling Power (W) 1,120/1,140
Cooling Current (A) 5.6/5.2
Heating Power (W) 2,900/3,500
Heating Current (A) 14.0/15.3
MATERIALS/FINISHES
Color White
Installation Kit Yes
Air Filter Washable
DIMENSIONS/WEIGHT
Shipping Dimension (WxHxD) 27.72 x 17.41 x 22.41 inch
Product Dimension (WxHxD) 24.00 x 14.41 x 20.09 inch
Net Weight (lb) 82
Shipping Weight (lb) 94
WARRANTY
Parts & Labor 1 Year Parts and Labour
UPC CODES
UPC 048231382281

Quick Specs


  • Appearance

  • Type: Air Conditioner
  • Style: Wall Fit Air Conditioner

  • Dimensions

  • Width: 24"
  • Height: 14.406"
  • Depth: 20.094"

  • Features

  • Energy Star Rated: No

  • Cooling Capacity

  • Cooling Power: 11200 BTUs

Interactive Tour

{"hideMenu":false,"ipiOnly":false,"tourViews":[{"viewImage":{"sources":[{"src":"/www.lg.com/us/images/air-conditioners/md05816390/gallery/desktop-01.jpg.w1920.jpg","profile":"W1920","width":400,"height":265},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/gallery/desktop-01.jpg.w960.jpg","profile":"W960","width":400,"height":265},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/gallery/desktop-01.jpg.w480.jpg","profile":"W480","width":400,"height":265},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/gallery/desktop-01.jpg.w240.jpg","profile":"W240","width":240,"height":159}],"src":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/gallery/desktop-01.jpg","width":400,"height":265},"runtimeSrc":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/gallery/desktop-01.jpg.web.jpg","width":400,"height":265},"assetWrapper":"tour","alt":"LG LT1237HNR Air_Conditioners","isAdaCompliant":false},"hotspots":[{"hotspotX":0.2,"hotspotY":0.35,"captionFromAttr":"Maximum Cooling","description":"LG air conditioners provide exceptional cooling power that will keep you and your family cool, comfortable, and in control.","media":{"sources":[{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/01-feature-rac-maximum-cooling-d.jpg.w1920.jpg","profile":"W1920","width":1600,"height":1106},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/01-feature-rac-maximum-cooling-d.jpg.w960.jpg","profile":"W960","width":960,"height":663},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/01-feature-rac-maximum-cooling-d.jpg.w480.jpg","profile":"W480","width":480,"height":331},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/01-feature-rac-maximum-cooling-d.jpg.w240.jpg","profile":"W240","width":240,"height":165}],"src":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/01-feature-rac-maximum-cooling-d.jpg","width":1600,"height":1106},"runtimeSrc":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/01-feature-rac-maximum-cooling-d.jpg.web.jpg","width":1600,"height":1106},"assetWrapper":"tour","alt":"Maximum Cooling","isAdaCompliant":false,"type":"IMAGE"},"direction":"right"},{"hotspotX":0.2,"hotspotY":0.55,"captionFromAttr":"Energy Guide Label*","description":"Estimated yearly energy cost is $112**. Your exact costs will depend on use, local utility rates and the type and source of your energy.","media":{"sources":[{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/02-feature-rac-energy-guide-d.jpg.w1920.jpg","profile":"W1920","width":1600,"height":600},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/02-feature-rac-energy-guide-d.jpg.w960.jpg","profile":"W960","width":960,"height":360},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/02-feature-rac-energy-guide-d.jpg.w480.jpg","profile":"W480","width":480,"height":180},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/02-feature-rac-energy-guide-d.jpg.w240.jpg","profile":"W240","width":240,"height":90}],"src":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/02-feature-rac-energy-guide-d.jpg","width":1600,"height":600},"runtimeSrc":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/02-feature-rac-energy-guide-d.jpg.web.jpg","width":1600,"height":600},"assetWrapper":"tour","alt":"Energy Guide Label*","isAdaCompliant":false,"type":"IMAGE"},"direction":"right"},{"hotspotX":0.8,"hotspotY":0.35,"captionFromAttr":"Match Room Size to BTUs/hr","description":"Picking the right home air conditioner is very easy with the right information. Before buying an air conditioner, find out how many BTUs you need.","media":{"sources":[{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/03-feature-rac-match-room-d.jpg.w1920.jpg","profile":"W1920","width":1600,"height":600},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/03-feature-rac-match-room-d.jpg.w960.jpg","profile":"W960","width":960,"height":360},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/03-feature-rac-match-room-d.jpg.w480.jpg","profile":"W480","width":480,"height":180},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/03-feature-rac-match-room-d.jpg.w240.jpg","profile":"W240","width":240,"height":90}],"src":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/03-feature-rac-match-room-d.jpg","width":1600,"height":600},"runtimeSrc":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/03-feature-rac-match-room-d.jpg.web.jpg","width":1600,"height":600},"assetWrapper":"tour","alt":"Match Room Size to BTUs/hr","isAdaCompliant":false,"type":"IMAGE"},"direction":"left"},{"hotspotX":0.8,"hotspotY":0.55,"captionFromAttr":"Made to Perfection","description":"LG air conditioners add powerful performance and stable durability to perfectly match your frame.","media":{"sources":[{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/04-feature-rac-modern-design-d.jpg.w1920.jpg","profile":"W1920","width":1600,"height":1120},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/04-feature-rac-modern-design-d.jpg.w960.jpg","profile":"W960","width":960,"height":672},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/04-feature-rac-modern-design-d.jpg.w480.jpg","profile":"W480","width":480,"height":336},{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/04-feature-rac-modern-design-d.jpg.w240.jpg","profile":"W240","width":240,"height":168}],"src":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/04-feature-rac-modern-design-d.jpg","width":1600,"height":1120},"runtimeSrc":{"src":"/www.lg.com/us/images/air-conditioners/md05816390/feature/04-feature-rac-modern-design-d.jpg.web.jpg","width":1600,"height":1120},"assetWrapper":"tour","alt":"Made to Perfection","isAdaCompliant":false,"type":"IMAGE"},"direction":"left"}]}],"ipiCompatible":false}

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

All appliances purchased from Bitter Neumann come with a manufacturer supplied warranty, which is normally 1 year from date of purchase. For your peace of mind Bitter Neumann offers additional Product Protection Plans that will cover your product for up to 5 years from date of purchase. These plans are very affordable and cover all parts and labor costs for you.
Please ask one of our sales associates how you can protect your appliance for up to 5 years

3.6 out of 5

66% of reviewers recommend this product.

5 Stars

Awesomeness

XDs 42 8/3/2022

I bought this AC with heat a couple months ago and Im waiting on the chance to use the heat... Ive been thru so much with trying to buy an AC with heat unit...I tried to save money and didnt work out but finally I found a Great company with a Great product like LG and dont regret it one bit... Thanks LG XDs
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Powerful and energy efficient

Timbuk2 8/1/2022

Bought this to replace the older one I had because of its features and size. Im very happy with the cooling abilities in my Florida room with lots of glass windows which presents a challenge. This unit has the power and BTU size that really was needed for this situation. Im loving how it actually cuts off for a little while and comes back on when the temperature gets to high. Its a 400 square foot room and I set the thermostat for 71 and it maintains it very well. The only drawback is that its a little loud but its not a deal breaker. I havent put it in the heat cycle yet because its not needed. I did briefly turn it on the heat and it seems very capable.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
1 Stars

AC

Bill Holm 6/18/2022

This unit was 5 months old and it quit working Called for repair and service man picked it up and it took over 2 weeks to get back. Poor service Service man was horrible Got it back and the broken parts was left in unit and a screw missing. It had a rattling sound when we turned it on
Originally posted on lg.com

No, I do not recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
4 Stars

Decent for the price

Ricodog1 6/9/2022

My living/dining room is a constant 72 - 75 degrees and this unit does not maintain a constant cooling temp
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
5 Stars

Great FInd

Rocamix 2/7/2022

I brought this LG model about 2 month ago and I absolutely love it. The price was reasonable compared to others I checked. I come in from work and set the heat cycle on 78 and within 5 minutes my whole living room is nice and warm. It fit perfectly in the pre-cut space nice. I will purchase more for my other rooms.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value

 
3 Stars

LG ac

Kay Marie 9/8/2021

My ac is not compatible with my system and the adapter suggested by LG support worked but unit not blowing cool air.Im still awaiting assistance in replacing it.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

1 Stars

Sorry I trusted LG

Brad R 8/12/2021

Unit struggles to output 68 air when outside temp is 75. Unit is on North side of the house shaded by large tree. In hot weather Unit is unacceptable. Took repairman more than a week to arrive and claims unit is operating properly.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
3 Stars

Nice unit but exterior side could be built better

Desert Punk 7/7/2021

This review is for model number LT1237HNR with optional grille AXRGALA01 and the optional sleeve. Installation was quick. Good thing because the new unit and sleeve were not as high as the old one so the contractor had to fill in the gap with insulating foam then trim around the opening on the interior and exterior. This was expected. Here is where I advise a little caution. The back outside facing of the unit is of flimsy construction. First there is an included plastic diamond mesh that offers MINIMAL protection. If this unit is installed in a high traffic area or can be reached by people walking by the back of the unit will be exposed. If you have a lot of birds and insects around your home the back of the unit will be exposed. Also if you value how the unit looks from the exterior this may not be the unit for you. This is why I bought the optional grille. The grille itself is flimsy with the louvers easily crushed as it is stamped from light gauge metal. But the worst part is the instructions say you have to remove the unit from the sleeve before Installing it. In my case thats going to be difficult what with the trim and caulking around the unit. Plus the louver arrived after my unit was installed. Wish I knew beforehand so I could have postponed installation I am going to try attaching from the outside as the screw holes line up but it will look a little wonky. I just want to keep the birds and wasps out. I would have loved to have the option have a more durable louver or better designed exterior face of the unit. I understand that engineering and economic principles are in play but still I would have paid more if given the option. Im giving this unit three stars. It could easily be four or five if it was built better.
Originally posted on lg.com

No, I do not recommend this product

Features

 

Quality

 

Value

 
5 Stars

Easy installation by homeowner.

vickcraw 6/26/2021

The product works great and the installation instructions made it very easy for the homeowner to install. I also bought the new sleeve as part of the system.
Originally posted on lg.com

Yes, I recommend this product

 Incentivized Review

Features

 

Quality

 

Value