The LG LT12124CNR Through-the-Wall Air Conditioner is a powerful cooling solution designed for efficient temperature control in medium to large rooms. With an impressive 11,800 BTU cooling capacity, this unit effectively cools spaces up to 550 square feet, ensuring comfort during hot summer months. Operating on a standard 115V electrical supply, it features multiple cooling and fan speeds, allowing for customizable airflow and temperature settings. The unit is equipped with a programmable timer and remote control for added convenience. Its sleek design seamlessly integrates into your wall, providing a clean aesthetic while maximizing space. Energy-efficient and reliable, the LG LT12124CNR is the perfect choice for maintaining a comfortable indoor environment.
- 11,800 BTU
- Universal Fit for Sleeve
- Remote Control
- Timer 24 Hr. On/Off
- Wall Sleeve Sold Separately
- Remote Control
- 3 Cooling & Fan Speeds
- Trim Kit Included
- Estimated Cooling Area 530 Sq. Ft
- Maximum Cooling
-
Maximum Usability
-
Installation Made Easy
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. Dry mode is ideal for damp, rainy days.
Universal Fit for Sleeve (Sold Separately)
LG's universal thru-the-wall air conditioners fit competitive wall sleeves (26" standard size)
Why should you buy LG LT12124CNR?
-
Good cooling capacity
Provides about 11,800 BTU, suitable for medium-sized rooms up to ~530 sq. ft. (~49 m²).
-
Multiple speeds and modes
Three cooling speeds and three fan speeds for flexible comfort.
Includes timer and dry (dehumidification) mode for added convenience and efficiency.
-
Convenience features
Remote control included for easy operation.
Washable filter with clean filter alert for simple maintenance.
Trim kit included for a neat, finished installation.
-
Energy saver function
Energy saver mode cycles the compressor to help reduce electricity usage when full cooling isn’t needed.
-
Wide applicability
Designed for through-the-wall installation, providing a more secure, tidy, and permanent alternative to window units.
Frequently Asked Questions by Customers
-
What size room is this unit suitable for?
It’s best for medium to large rooms—about 500‑530 sq ft. If room is significantly larger, it might struggle; if much smaller, it could be overkill and less efficient.
-
Does it run on standard voltage?
Yes — the unit operates on 115 V.
-
How many cooling and fan speeds are available?
It has 3 cooling settings and 3 fan‑only settings to adjust comfort.
-
Does it come with remote control and timer functions?
Yes. Remote control is included, and it has a 24‑hour on/off timer.
-
What kind of airflow direction control is there?
The unit has 4‑way air deflection so air can be directed in more than one direction as needed.
Pros
-
High cooling capacity: 11,800 BTU is strong for a through-the-wall unit, good for cooling rooms up to ~ 530 sq ft.
-
Multiple speeds and modes: 3 cooling speeds and 3 fan speeds give flexibility in comfort
-
4-way air deflection: helps spread the cooled air more evenly throughout the room.
-
Remote control & timer functions: allows convenience; you can set a 24-hour on/off timer etc.
-
Auto restart and energy saving features: restores settings after power loss; energy saver mode helps reduce consumption.
-
Washable filter and filter alarm: maintenance is easier; the filter alert reminds for cleaning.
-
Trim kit included: for neat installation and finishing.
Cons
-
Not Energy Star certified: might consume more energy compared to similarly rated units with that certification.
-
Noise level: at high settings ~ 60-66 dB; noticeable in quiet settings or bedrooms.
-
Wall sleeve not included: you’ll probably have to buy a compatible wall sleeve separately for installation.
-
Only cooling / no heating: useful only in warm weather. For cold climates or needing heating, this will not suffice.
-
Size & weight: fairly large/heavy unit (≈ 76 lbs), so installation may require effort and ensuring wall structure is adequate.
- Voltage limit: runs on 115 V; but power draw is ~ 10.2 A / ~ 1,110 watts, so you need reliable wiring & circuit capacity.
Conclusion
This LG LT12124CNR is a strong through-the-wall air conditioner for medium to relatively large rooms (~ 500-550 sq ft) especially in climates where cooling is needed most of the year. Its higher BTU rating, multiple fan/cooling speeds, and features like timer, remote, filter alert make it a good option if you want solid performance with convenience.
