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You need the best LG window air conditioners under $300 to cool your space without overspending. We compared 3 models using only the specifications published on the listings. The LG 8,000 BTU Window Air Conditioner leads because it covers up to 350 square feet with quiet operation. This practical capacity suits medium rooms. You will find three options ranked by their technical data. Use this guide to decide which unit fits your room size and control needs.

Match BTU to your room size

Choose your unit based on square footage. The 8,000 BTU models handle rooms up to 350 square feet. They also include remote control for easy operation. The 5,000 BTU option covers 150 square feet. It is better for small bedrooms. Select the cooling power that fits your space to avoid waste or insufficient cooling.

#ProductBest forPrice
1LG 8,000 BTU Window Air Conditioner Best overallmedium rooms up to 350 sq. ft.
2LG 8000 BTU Window AC with WiFi Best budgetsmall rooms needing smart app control
3LG 5000 BTU Window AC Best 150 sq. ft.small bedrooms under 150 sq. ft.

The best fit for you

  • You need reliable cooling for a medium room – LG 8,000 BTU Window Air Conditioner – It covers 350 square feet with 8000 BTU cooling power.
  • You want smart app control for your AC – LG 8000 BTU Window AC with WiFi – It includes Wi-Fi and app control for remote management.
  • You need a compact unit for a small bedroom – LG 5000 BTU Window AC – It fits spaces up to 150 square feet with 5000 BTU.
1Best overall
LG 8,000 BTU Window Air Conditioner

LG 8,000 BTU Window Air Conditioner

Best for: medium rooms up to 350 sq. ft.

Cooling Capacity
8,000 BTU
Coverage Area
350 sq ft
Noise Level
53 dB
Control Method
Electronic, Remote
Voltage
115V
Fan Speeds
3

This LG window air conditioner delivers 8,000 BTU of cooling power for rooms up to 350 square feet. It operates at a quiet 53 dB in low mode and includes a remote control for easy adjustments. The unit features three fan speeds, auto cool mode, and auto restart functionality. It is designed for 115V outlets and weighs 57 pounds. This model suits you if you need reliable cooling for a medium-sized bedroom or living space without excessive noise.

Pros
  • Cools rooms up to 350 square feet
  • Quiet operation at 53 dB in low mode
  • Includes remote control for easy use
  • Auto restart restores power after outages
Cons
  • 8,000 BTU capacity is lower than the 10,000 BTU and 14,000 BTU options available in the LG lineup
  • 57-pound weight is heavier than the 5,000 BTU LG model which is typically lighter
  • Only one operating mode listed (Fan) in attributes, limiting dehumidification or heat options compared to multi-mode units
Good fit if
  • You need to cool a room up to 350 square feet
  • You want quiet operation for a bedroom or living area
  • You prefer using a remote control for adjustments
Skip if
  • You require cooling for a room larger than 350 square feet
  • You need a unit with multiple operating modes like heat or dehumidify
  • You prefer a lighter unit for easier installation

Verdict: LG 8000 BTU Window AC is a practical choice for medium-sized rooms where quiet performance and remote convenience matter. It fits you well if you need dependable 115V cooling without excessive noise.

2Best budget
LG 8000 BTU Window AC with WiFi

LG 8000 BTU Window AC with WiFi

Best for: small rooms needing smart app control

Cooling Capacity
8,000 BTU
Coverage Area
350 sq ft
Control Method
App, remote, voice
Features
Remote, Quiet Operation
Color
Bright White
Dimensions
19.4 × 19.6 × 12.4 inches

This LG window unit delivers 8,000 BTU of cooling for rooms up to 350 square feet. It measures 19.6 by 12.4 by 19.4 inches and weighs 57.3 pounds. You can control it via remote, Wi-Fi, or the LG ThinQ app. The washable dust filter helps maintain efficiency. It fits well in small to medium spaces where smart features matter.

Pros
  • Cools rooms up to 350 square feet
  • Wi-Fi enabled with LG ThinQ app control
  • Includes remote control and voice assistant compatibility
  • Washable dust filter for easy maintenance
Cons
  • Lower cooling capacity at 8,000 BTU compared to higher-tier models
  • Heavier build at 57.3 pounds affects portability
Good fit if
  • You need smart app control for a small room
  • You want a washable filter for low maintenance
  • You prefer voice command integration with Alexa or Google
Skip if
  • You require cooling for spaces larger than 350 square feet
  • You need a unit with higher BTU output for intense heat
  • You prefer a lighter unit for frequent moving

Verdict: LG 8000 BTU Window AC with WiFi offers reliable smart control for small rooms. It suits you if you value app management and easy filter cleaning over raw power.

3Best 150 sq. ft.
LG 5000 BTU Window AC

LG 5000 BTU Window AC

Best for: small bedrooms under 150 sq. ft.

Cooling Capacity
5,000 BTU
Coverage Area
150 Sq.Ft.
Noise Level
50dB
Control Method
Mechanical
Voltage
115V
Fan Speeds
2

This LG window air conditioner is designed for small spaces, offering 5,000 BTU of cooling power. It covers up to 150 square feet, making it suitable for bedrooms or compact rooms. The unit operates at a low noise level of 50dB in low mode, which helps maintain a quiet environment. It features mechanical controls and two fan speeds for basic climate adjustment. The compact dimensions and 40-pound weight make it manageable for installation.

Pros
  • Cools rooms up to 150 square feet
  • Operates at 50dB in low mode
  • Includes auto restart after power failure
  • Features two cooling and fan speeds
Cons
  • Lower 5,000 BTU capacity compared to 8,000 BTU models on this list
  • Heavier 40-pound build compared to lighter units
  • Limited to mechanical controls instead of electronic ones
Good fit if
  • You need to cool a room under 150 square feet
  • You prefer a quiet operation around 50dB
  • You want a simple mechanical control interface
Skip if
  • You need to cool a room larger than 150 square feet
  • You require WiFi or remote control connectivity
  • You prefer electronic controls over mechanical switches

Verdict: LG 5,000 BTU Window AC is a compact cooling solution for small bedrooms. It fits buyers who prioritize low noise and simple mechanical operation for spaces under 150 square feet.

Specifications side by side

SpecLG 8,000 BTU Window Air ConditionerLG 8000 BTU Window AC with WiFiLG 5000 BTU Window AC
Cooling Capacity8,000 BTU8,000 BTU5,000 BTU
Coverage Area350 sq ft350 sq ft150 Sq.Ft.
Noise Level53 dB–50dB
Control MethodElectronic, RemoteApp, remote, voiceMechanical
Voltage115V–115V
Fan Speeds3–2
Room––Bedrooms
FeaturesRemote, Quiet Operation, Auto RestartRemote, Quiet OperationQuiet Operation
Operating ModesFan–Fan
Room Type––Bedroom
ColorWhiteBright WhiteWhite
Size8000 BTU8,000 BTU5000 BTU
Dimensions10 × 10 × 10 inches19.4 × 19.6 × 12.4 inches17.3 × 14.4 × 11.1 inches
Weight57 pounds57.3 pounds40 pounds
ModelLW8024RDLW8017ERSM1LW5016

How to choose the right LG AC

Match BTU to room size

Start by measuring your room’s square footage. The LG 8,000 BTU Window Air Conditioner covers up to 350 square feet. This makes it suitable for medium-sized spaces where consistent cooling is necessary. If your room is smaller, under 150 square feet, the LG 5,000 BTU Window AC is a better fit. Using a unit that is too powerful for a small room can cause rapid cycling and uneven temperatures. Choose the BTU rating that aligns with your specific square footage for efficient performance.

Check control method options

Decide how you want to operate your unit. The LG 8,000 BTU Window Air Conditioner includes a remote control for convenient adjustments from a distance. If you prefer managing your cooling via smartphone, the LG 8000 BTU Window AC with WiFi offers Wi-Fi app control. This allows you to adjust settings remotely without needing a physical remote. Select the control method that best fits your daily routine and convenience preferences. Both options provide reliable operation, but the interface differs significantly.

Consider noise levels

Quiet operation is vital for bedrooms and living areas. The LG 5,000 BTU Window AC is designed for small bedrooms where low noise is a priority. It provides simple mechanical operation alongside quiet performance. The other 8,000 BTU models also feature quiet operation capabilities. Check the product attributes for this specific feature if silence is important to you. A quieter unit ensures better rest and does not disrupt conversations or work calls in the room.

Verify voltage compatibility

Ensure your outlet supports the unit’s voltage requirements. The LG 8,000 BTU Window Air Conditioner and the LG 5,000 BTU Window AC both operate on 115V. This is the standard voltage for most household outlets in the United States. You typically do not need special wiring for these models. Confirm that your window area has a standard 115V outlet nearby. This simplifies installation and avoids the need for electrical modifications or dedicated circuits for standard cooling needs.

Review physical dimensions

Measure your window opening before purchasing. The LG 8000 BTU Window AC with WiFi measures 19.6 inches in width and 12.4 inches in height. The LG 8,000 BTU Window Air Conditioner has different dimensions, listed as 10 inches in width and height, though you should verify the full length. The LG 5,000 BTU Window AC is more compact at 14.4 inches wide. Ensure your window frame can accommodate the specific width and height of the chosen model for a secure fit.

Frequently asked questions

Which LG window AC is best for a 300 square foot room?

The LG 8,000 BTU Window Air Conditioner is the top choice for spaces up to 350 square feet. It delivers 8,000 BTU of cooling power to handle medium-sized rooms. The unit includes a remote control and quiet operation features. It runs on standard 115V power and weighs 57 pounds.

Can I control my LG window AC with a smartphone app?

Yes, the LG 8000 BTU Window AC with WiFi supports Wi-Fi app control. This model, ranked second, allows you to manage settings remotely. It also includes a physical remote control and quiet operation. The unit is bright white and weighs 57.3 pounds.

What is the smallest LG window AC available for small bedrooms?

The LG 5000 BTU Window AC is designed for small bedrooms under 150 square feet. It provides 5,000 BTU of cooling in a compact form. The unit features quiet operation and runs on 115V power. It weighs 40 pounds and has a white finish.

Do these LG window units come with a remote control?

Two of the listed models include a remote control. The LG 8,000 BTU Window Air Conditioner features a remote for easy operation. The LG 8000 BTU Window AC with WiFi also includes a remote alongside its app control. The 5,000 BTU model does not list a remote in its specifications.

How much do these LG window air conditioners weigh?

The weight varies by model. The LG 8,000 BTU Window Air Conditioner weighs 57 pounds. The LG 8000 BTU Window AC with WiFi is slightly heavier at 57.3 pounds. The LG 5000 BTU Window AC is the lightest at 40 pounds.

What voltage do these LG window ACs require?

The LG 8,000 BTU Window Air Conditioner and the LG 5000 BTU Window AC both operate on 115V power. The specifications for the LG 8000 BTU Window AC with WiFi do not list the voltage. All units are designed for standard household electrical outlets.

Which LG window AC is best for a room under 150 square feet?

The LG 5000 BTU Window AC is best suited for spaces under 150 square feet. It covers exactly 150 square feet with 5,000 BTU of cooling. The unit is ideal for small bedrooms due to its quiet operation. It weighs 40 pounds and has a white color.

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