LG LW1823HR 18,000 BTU 230V Window Air Conditioner with Cooling and Heating

The LG LW1823HR is a powerful 18,000 BTU window air conditioner designed to provide both cooling and heating, making it an ideal choice for year-round comfort. Operating on 230V, this unit efficiently cools spaces up to 1,000 square feet, ensuring a refreshing environment during hot summer months. In winter, its heating function helps maintain a cozy atmosphere, making it versatile for all seasons. The air conditioner features multiple cooling and fan speeds, allowing users to customize their comfort level. Additionally, the unit includes an energy-saving mode and a programmable timer, enhancing efficiency and convenience. With its sleek design and user-friendly remote control, the LG LW1823HR is a reliable solution for maintaining optimal indoor temperatures.

• Made To Perfection
• Maximum Usability
• Quiet Operation
• Cooling & Heating

Modes & Fan Speeds
Two cooling / heating speeds and two fan speeds.

Timer
24-hour On/Off timer to schedule operation.

Auto Restart
Remembers last settings and resumes after a power outage. 

Energy Saver Mode
Helps reduce electrical consumption by shutting off compressor/fan when target temperature reached, then cycling fans to check temperature.

Filter Alarm / Clean-Filter Reminder
Alerts when the air filter needs cleaning for optimal performance.

Why should you buy LG LW1823HR ?

• Provides both cooling and heating 18,000 BTU for cooling + 12,000 BTU for heating, so it works year-round.
• Suited for large spaces covers up to ~1,000 square feet.
• Multiple fan and cooling/heating speeds (2 speeds each) allow more flexible control over comfort.
• Has energy-saving features including an Energy Saver Mode to reduce power usage when possible.
• Good airflow with 4-way air deflection to distribute temperature more evenly in the room.
• Useful timer (24-hour on/off) and auto-restart after power cuts so settings are preserved.
• Washable filter + filter alarm/reminder helps with maintenance and keeps efficiency up.
• Decent dehumidification rate helps in humid climates.

Frequently Asked Questions by Customers

• Which cooling and heating capacities does the LW1823HR provide, and for how large a room is it designed?
  It provides 18,000 BTU cooling and 12,000 BTU heating, designed to comfortably handle rooms up to about 1,000 square feet.
• What is the power supply requirement, and how much current does it draw in cooling vs heating modes?
  It runs on 208/230 volts, draws about 7.8 amps (roughly 7.3 amps) when cooling, and about 15 to 16 amps when operating in heating mode.
• How much electrical power does it use in cooling and heating, and what is the energy efficiency rating?
  Cooling uses about 1,620-1,640 watts, heating uses around 3,100-3,670 watts. The CEER rating is 11.1.
• What are its dimensions, weight, and installation style?
  The unit is approximately 25.5 inches wide, 16.83 inches high, 30.5 inches deep. Net weight is about 132 pounds, shipping weight about 146 pounds. It uses a slide-in/out chassis.
• What are its noise levels, airflow and dehumidification performance?
  On high it’s about 61 dB, in lower modes about 57 dB, airflow when “dry” is about 430 CFM, dehumidification roughly 5.4 pints per hour.
• What are its control, convenience, and additional features?
  It offers 2 cooling speeds and 2 fan-only speeds, a 24-hour on/off timer, auto-restart after power loss, an energy saver mode, a filter alarm, 4-way air deflection, remote control, a washable/dust filter, and side discharge airflow.
• What warranty is included?
  It carries a 1-year parts and labor warranty.

Pros

1. Year-round comfort (cooling + heating)
   The heating mode (~ 12,000 BTU) is helpful in cooler or transitional seasons. You don’t need a separate heater if the room needs mild heating occasionally.
2. Good capacity for large rooms
   Cooling capacity supports ~ 1,000 square feet, which means this unit can handle big spaces, or rooms with high ceilings or heavy heat gain.
3. Versatility of modes & airflow control
   Multiple modes (cool, heat, fan, dry), 2 speeds, 4-way deflection help manage comfort better — can reduce hot or cold spots.
4. Convenience features
   Auto-restart, timer, washable filter, slide-in installation design make using and maintaining easier.
5. Strong performance
   Users generally report it cools effectively and the heating works well in mild conditions.

Cons / Trade-offs

1. Electricity & power demand
   High power draw, especially in heating mode (~ 15-16 A). You’ll need a circuit that supports the load, and the cost to run heating will be significantly higher.
2. Noise at higher settings
   At high speed/cooling, the noise (~ 61 dB) is substantial and may be noticeable especially in quieter rooms or during the night.
3. Size, weight, installation complexity
   Big and heavy unit (~132 lbs), large depth. Installation may require sufficient window frame, possibly support bracket, good sealing to avoid leaks.
4. Efficiency is moderate
   CEER ~ 11.1 is okay but not outstanding. For heavy usage or hot climates, more efficient inverter units may perform better in electricity cost savings.
5. Heating is “supplemental”
   In very cold climates, the heating capacity may not be enough as primary heating — it’s more for mild cool rather than harsh winter.
6. Potential cost of ownership
   Given large capacity, the operating cost (in cooling + heating) will be non-trivial over time.

Conclusion

The LG LW1823HR is a solid, full-year climate control unit for large spaces. If you want a window AC that can cool through hot months and also provide heating in colder or transitional periods, this dual-function unit is attractive.