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White rectangular through-the-wall air conditioner with top discharge grille and remote control

LG Electronics

LG Electronics LT1236CER 11,500/11,800 BTU 230V Through-the-Wall Air Conditioner

SKU CH-32M0-SEZRJ MPN LT1236CER

A through-the-wall air conditioner delivering 11,500/11,800 BTU cooling for rooms up to 550 sq ft with 3.9 pints per hour dehumidification

  • StyleThrough the Wall Air Conditioner
  • Chassis TypeTop Down
  • FunctionsCooling / Dehumidifying / Fan
  • DescriptionThe LG Electronics 11,800 BTU through-the-wall air condition
  • Operating Room Size (Approx.)550 Sq. Ft.
  • Cooling Capacity (BTU)11,500/11,800

Cooling Capacity (BTU) 11,800

  • Cools rooms up to 550 sq ft with 11,500/11,800 BTU capacity
  • Dehumidifies at 3.9 pints per hour for drier indoor air
  • Indoor noise as low as 55 dB on low fan setting
  • Washable filter with LED reminder simplifies maintenance
  • Full-function remote and 24-hour timer allow convenient control

Cooling for 550 sq ft rooms

This through-the-wall air conditioner delivers 11,500/11,800 BTU cooling and 3.9 pints per hour dehumidification for spaces up to 550 sq ft. It operates on 230V power with three fan speeds and four-way air direction. A full-function remote control and 24-hour timer add daily convenience.

Suits permanent wall installation

Ideal for homeowners replacing an existing through-the-wall unit who want a direct fit without modifying the opening. The top-down discharge and washable filter simplify upkeep. Not for renters or buyers needing a portable or window-mounted solution that avoids permanent installation.

11,500/11,800 BTU at 230V

The dual cooling rating and voltage requirement are the critical specifications; verify your electrical supply and wall sleeve dimensions match before purchase. Indoor noise ranges from 55 to 59 dBA, outdoor reaches 65 dBA. Electric heat provides supplemental warmth.

Highlights

  • Cools rooms up to 550 sq ft with 11,500/11,800 BTU capacity
  • Dehumidifies at 3.9 pints per hour for drier indoor air
  • Indoor noise as low as 55 dB on low fan setting
  • Washable filter with LED reminder simplifies maintenance
  • Full-function remote and 24-hour timer allow convenient control

Specifications

BrandLG
ModelLT1236CER
StyleThrough the Wall Air Conditioner
Chassis TypeTop Down
FunctionsCooling / Dehumidifying / Fan
DescriptionThe LG Electronics 11,800 BTU through-the-wall air conditioner with remote adjusts to your cooling needs with 3 fan and cool settings and 4-way air direction. It features an automatic restart after a power failure and has an energy saver mode. The washable air filter saves money on replacements. This unit cools up to 550 sq. ft. and installs through the wall with a wall sleeve (not included).
Operating Room Size (Approx.)550 Sq. Ft.
Cooling Capacity (BTU)11,500/11,800
Heater TypeElectric
Air Direction Control4-Way
Dehumidification3.9 pints/hour
dBA LevelNoise Indoor dB (A) (High/Low): 59/55
Noise Outdoor dB (A) (High): 65
Discharge AirTop
ColorWhite
Includes Remote ControlYes
Fan Speeds (Cool)3
Fan Speeds (Fan)3
Energy Save ModeYes
Timer24 Hours
Filter TypeWashable
Amps (Cooling)5.5/5.0
Watts (Cooling)1,080/1,110
Power Supply230/208V / 60 Hz
Energy Star CompliantYes
Height14.41"
Width24.00"
Depth (w/ Front)20.09"
Unit Weight82.00 lbs.
Shipping weight37.20 kg
Package size635 × 533 × 381 mm

Other versions of this model

1 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I decide between the 11,500 and 11,800 BTU ratings for my room?

The dual rating reflects performance on different supply voltages; both cover rooms up to 550 sq ft.

What does the 3458.24 W cooling capacity mean for daily use?

It is the metric equivalent of the BTU rating and indicates the heat the unit can remove per hour in a 550 sq ft space.

What does the 230 V requirement mean for installation?

The unit needs a dedicated 230 V circuit and fits standard through-the-wall sleeves without modification.

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