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We compared 6 best window air conditioners with auto restart to help you find the right unit. The Frigidaire 5,000 BTU Mechanical Window Air Conditioner leads this list because it offers quiet operation in a compact 35.3-pound frame. Our picks are based strictly on the specifications published on the product listings. We analyzed cooling capacity, control methods, and physical dimensions for each model. This guide helps you decide which auto-restart feature fits your specific room size and power needs.
Match BTU to your room size
Auto restart is standard, so focus on cooling power. Small rooms under 150 square feet need 5,000 BTU units like the Frigidaire model. Medium spaces around 450 square feet require 10,000 BTU options such as the LG unit. Large areas up to 24,500 BTU demand heavy-duty appliances. Choose the capacity that matches your square footage for effective temperature control.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Frigidaire 5,000 BTU Mechanical Window Air Conditioner Best overall | small rooms needing auto restart | |
| 2 | LG 10,000 BTU Electronic Window Air Conditioner Best premium | medium rooms needing quiet cooling and auto restart | |
| 3 | Frigidaire 8,000 BTU Window Air Conditioner Best budget | small rooms needing quiet cooling with Auto Restart | |
| 4 | LG 24500 BTU Window AC Best apartment | large rooms needing high cooling output | |
| 5 | Amana 10,000 BTU Window AC Best basement | Basements and medium rooms needing auto restart | |
| 6 | GE 6,000 BTU Electronic Window Air Conditioner Best 250 sq. ft. | small rooms up to 250 sq. ft. |
The best fit for you
- You need the most compact window unit available – Frigidaire 5,000 BTU Mechanical Window Air Conditioner – It weighs only 35.3 pounds and measures 6.3 inches wide.
- You want a lightweight unit for small rooms – GE 6,000 BTU Electronic Window Air Conditioner – It weighs just 9.1 pounds while covering 250 square feet.
- You need high cooling power for large spaces – LG 24500 BTU Window AC – It delivers 24,500 BTU of cooling output for big rooms.
- You require cooling for basements and medium rooms – Amana 10,000 BTU Window AC – It provides 10,000 BTU with auto restart for basements.
- You want quiet cooling for medium-sized areas – LG 10,000 BTU Electronic Window Air Conditioner – It offers 10,000 BTU with quiet operation and remote control.
Frigidaire 5,000 BTU Mechanical Window Air Conditioner
Best for: small rooms needing auto restart
- Features
- Quiet Operation, Auto Restart
- Cooling Capacity
- 5,000 BTU
- Coverage Area
- 150 Sq. Ft.
- Noise Level
- 52 dBA
- Control Method
- Mechanical
- Fan Speeds
- 2
This Frigidaire window air conditioner provides 5,000 BTU of cooling for rooms up to 150 square feet. It features mechanical controls and two fan speeds. The unit includes an auto restart function to restore settings after power outages. It operates at 52 dBA for quiet performance. The design includes a washable filter and an extra-long power cord for easy installation.
- Auto restart restores previous settings after power loss
- Quiet operation at 52 dBA
- Extra-long three-prong power cord
- Washable filter for easy maintenance
- 5,000 BTU capacity is lower than other options on this list
- Mechanical controls offer fewer settings than electronic models
- 150 square foot coverage is smaller than larger units
- You need cooling for a small room up to 150 square feet
- You want auto restart to handle power fluctuations
- You prefer simple mechanical controls
- You need to cool a room larger than 150 square feet
- You prefer electronic controls with digital displays
- You require higher cooling capacity than 5,000 BTU
Verdict: Frigidaire 5,000 BTU Window AC suits small spaces needing reliable, quiet cooling with auto restart. It fits buyers who value simplicity over advanced electronic features.
LG 10,000 BTU Electronic Window Air Conditioner
Best for: medium rooms needing quiet cooling and auto restart
- Features
- Remote, Quiet Operation, Auto Restart
- Cooling Capacity
- 10,000 BTU
- Coverage Area
- 450 sq ft
- Noise Level
- 52 dB
- Control Method
- Electronic, Remote
- Voltage
- 115V
The LG LW1024RD is a 10,000 BTU window air conditioner designed for rooms up to 450 square feet. It features Auto Restart to restore settings after power outages. The unit operates at 52dB on low mode and includes a remote control. It weighs 57 pounds and runs on 115V power. This model suits medium-sized spaces like bedrooms or living areas where quiet cooling and convenience are priorities.
- Auto Restart resumes operation after power loss
- Quiet operation at 52dB in low mode
- Includes remote control for easy adjustments
- Cools areas up to 450 square feet
- 10,000 BTU capacity is lower than the 24,500 BTU competitor
- 57-pound weight is heavier than the 6,000 BTU GE model
- Limited to 115V voltage compared to the 230/208V LG option
- You need a unit for a room up to 450 square feet
- You want quiet operation at 52dB on low mode
- You require Auto Restart functionality after power failures
- You need to cool a space larger than 450 square feet
- You require a higher cooling capacity than 10,000 BTU
- You need a 230/208V power connection
Verdict: LG 10,000 BTU Window AC with Auto Restart fits users who need moderate cooling for medium rooms and value quiet operation with remote convenience. It is a practical option for bedrooms or small living spaces where power interruptions are a concern.
Frigidaire 8,000 BTU Window Air Conditioner
Best for: small rooms needing quiet cooling with Auto Restart
- Features
- ECO Mode, Remote, Quiet Operation, Auto Restart
- Cooling Capacity
- 8,000 BTU
- Coverage Area
- 350 sq ft
- Noise Level
- 54 dBA
- Control Method
- Remote control
- Operating Modes
- Cool, dry, eco, sleep
This Frigidaire unit delivers 8,000 BTU of cooling power for spaces up to 350 square feet. It includes Auto Restart, ensuring settings resume after a power outage. The 54 dBA operation level supports quiet use in bedrooms. You get remote control access and a 24-hour timer for schedule management. This model suits small rooms where moderate cooling capacity and energy-saving Eco Mode are priorities.
- 8,000 BTU cooling capacity for up to 350 sq. ft.
- Auto Restart feature preserves settings after power loss
- 54 dBA noise level for quiet bedroom operation
- Includes remote control and 24-hour timer
- Eco Mode reduces energy consumption
- 8,000 BTU output is lower than 10,000 BTU or 24,500 BTU competitors on this list
- 350 sq. ft. coverage area is smaller than 450 sq. ft. or 1,560 sq. ft. options
- 45.4 lb weight is heavier than lighter 5,000 BTU units
- You need a window unit for a room under 350 square feet
- You want Auto Restart to maintain temperature settings after outages
- You prioritize quiet operation at 54 dBA for sleeping areas
- You require cooling for a room larger than 350 square feet
- You need more than 8,000 BTU for high-heat environments
- You prefer a lighter unit under 40 pounds for easier installation
Verdict: Frigidaire 8,000 BTU Window AC fits users with small rooms who value quiet cooling and Auto Restart reliability over raw power.
LG 24500 BTU Window AC
Best for: large rooms needing high cooling output
- Features
- Timer, 24-Hour Timer, Remote, Quiet Operation, Auto Restart
- Cooling Capacity
- 24,500 BTU
- Coverage Area
- 1,560 Sq. Ft.
- Control Method
- Digital, remote control
- Voltage
- 230/208V
- Fan Speeds
- 3
This LG unit delivers 24,500 BTUs of cooling power for spaces up to 1,560 square feet. It features an auto restart function that restores your previous settings after a power outage. The 230/208V voltage requires a specific outlet type. You get a remote control, a 24-hour timer, and three fan speeds. Its large 136-pound frame suits substantial rooms like living rooms or large apartments where high capacity is necessary.
- 24,500 BTU cooling capacity for large areas
- Auto restart resumes operation after power loss
- Includes remote control and 24-hour timer
- Cools rooms up to 1,560 square feet
- Requires 230/208V electrical outlet, not standard 110V
- Weighs 136 pounds, making it heavy to install
- Larger physical footprint than smaller units on this list
- You need to cool a large room or open living space
- You want automatic restart after power failures
- You have a 230V outlet available for installation
- You only have standard 110V wall outlets
- You are cooling a small bedroom under 400 square feet
- You need a lightweight unit for easy handling
Verdict: LG 24,500 BTU Window AC handles large spaces with high output. It fits buyers with 230V outlets who need reliable cooling for big rooms.
Amana 10,000 BTU Window AC
Best for: Basements and medium rooms needing auto restart
- Features
- Timer, 24-Hour Timer, Remote, Auto Restart
- Cooling Capacity
- 10,000 BTU
- Coverage Area
- Up to 450 sq ft
- Control Method
- Remote control, digital display
- Voltage
- 115V
- Operating Modes
- Eco mode, sleep mode
The Amana 10,000 BTU window unit cools rooms up to 450 square feet while removing 2.1 pints of moisture per hour. It includes auto restart to resume settings after power outages. You get a remote control, 24-hour timer, and three cooling speeds. The 61.7-pound unit fits windows with a minimum height of 16 inches. It suits bedrooms, living rooms, and basements needing reliable cooling.
- 10,000 BTU cooling capacity for 450 sq ft rooms
- Auto restart restores last temperature after power loss
- Remote control and 24-hour programmable timer included
- Removable and washable air filter with Clean Alert
- Three cooling speeds plus eco and sleep modes
- Weighs 61.7 pounds, making it heavier than lighter 5,000 BTU units on this list
- Cools up to 450 square feet, which is less coverage than the 1,560 sq ft capacity of larger models here
- Limited to 115V power, restricting use compared to 208/230V options available for larger spaces
- You need auto restart to keep your basement cool after power fluctuations
- You want a remote control for easy operation in a bedroom or living room
- You have a window with at least 16 inches of height for installation
- You require cooling for spaces larger than 450 square feet
- You need a unit that operates on 208V or 230V power
- You prefer a lighter unit for easier window installation
Verdict: Amana 10,000 BTU Window AC with Auto Restart delivers steady cooling and reliable restart features for medium-sized rooms. It is a solid match for homeowners who value convenience and consistent temperatures in basements or bedrooms.
GE 6,000 BTU Electronic Window Air Conditioner
Best for: small rooms up to 250 sq. ft.
- Features
- ECO Mode, Remote, Auto Restart
- Cooling Capacity
- 6,000 BTU
- Coverage Area
- 250 sq ft
- Control Method
- Electronic, remote
- Operating Modes
- Cool, eco
- Color
- Black
The GE 6,000 BTU window air conditioner cools rooms up to 250 sq. ft. It includes auto restart to restore settings after power outages. The unit features eco mode to save energy and a remote control for convenience. Its compact dimensions and 9.1-pound weight make it suitable for small spaces like bedrooms or home offices.
- 6,000 BTU cooling capacity for rooms up to 250 sq. ft.
- Auto restart restores last temperature and mode settings after power loss.
- Includes a full-function remote control for easy operation.
- Eco mode automatically adjusts fan and compressor to save energy.
- Lower cooling capacity of 6,000 BTU compared to 10,000 BTU and higher models on this list.
- Smaller coverage area of 250 sq. ft. limits use to small rooms.
- You need to cool a small room under 250 sq. ft.
- You want auto restart functionality to maintain settings after power outages.
- You prefer a lightweight unit that is easy to handle.
- You need to cool a room larger than 250 sq. ft.
- You require a cooling capacity higher than 6,000 BTU.
- You are looking for a model with a larger coverage area.
Verdict: GE 6,000 BTU Window AC fits buyers who need reliable cooling for small rooms under 250 sq. ft. and value auto restart and remote control features.
Specifications side by side
| Spec | Frigidaire 5,000 BTU Mechanical Window Air Conditioner | LG 10,000 BTU Electronic Window Air Conditioner | Frigidaire 8,000 BTU Window Air Conditioner | LG 24500 BTU Window AC | Amana 10,000 BTU Window AC | GE 6,000 BTU Electronic Window Air Conditioner |
|---|---|---|---|---|---|---|
| Cooling Capacity | 5,000 BTU | 10,000 BTU | 8,000 BTU | 24,500 BTU | 10,000 BTU | 6,000 BTU |
| Coverage Area | 150 Sq. Ft. | 450 sq ft | 350 sq ft | 1,560 Sq. Ft. | Up to 450 sq ft | 250 sq ft |
| Noise Level | 52 dBA | 52 dB | 54 dBA | – | – | – |
| Control Method | Mechanical | Electronic, Remote | Remote control | Digital, remote control | Remote control, digital display | Electronic, remote |
| Voltage | – | 115V | – | 230/208V | 115V | – |
| Operating Modes | – | – | Cool, dry, eco, sleep | – | Eco mode, sleep mode | Cool, eco |
| Fan Speeds | 2 | 3 | 3 | 3 | 3 | – |
| Room | – | – | – | Bedrooms | Bedrooms | – |
| Features | Quiet Operation, Auto Restart | Remote, Quiet Operation, Auto Restart | ECO Mode, Remote, Quiet Operation, Auto Restart | Timer, 24-Hour Timer, Remote, Quiet Operation, Auto Restart | Timer, 24-Hour Timer, Remote, Auto Restart | ECO Mode, Remote, Auto Restart |
| Room Type | – | – | – | Bedroom, Living Room, Apartment | Bedroom, Living Room, Basement | – |
| Color | White | White | White | White | White | Black |
| Size | 5,000 BTU Mechanical Controls | 10,000 BTU | 8,000 BTU Electronic Controls | 24500 BTU | 10000 BTU | – |
| Dimensions | 6 × 6.3 × 4.72 inches | 10 × 10 × 10 inches | 18.5 × 15.8 × 13.4 inches | 28.1 × 26 × 17.7 inches | 19.8 × 21.5 × 15.2 inches | 13.4 × 9.1 × 12.6 inches |
| Weight | 35.3 pounds | 57 pounds | 45.4 pounds | 136 pounds | 61.7 pounds | 9.1 pounds |
| Model | FFRA051WAE | LW1024RD | FHWC083TC1 | LW2516ER | AMAP101CW | AWCS06BWF |
How to choose the right one
Match coverage to room size
Select a unit that covers your specific square footage. The Frigidaire 5,000 BTU model covers 150 square feet, which suits small rooms. The LG 10,000 BTU unit covers 450 square feet, making it better for medium spaces. Choosing the correct cooling power ensures efficient operation. Do not undersize a unit for a larger room, as it will struggle to maintain temperature. Conversely, an oversized unit may cycle too frequently. Check the coverage area specification to find the right fit for your space.
Check control method preference
Decide if you prefer physical buttons or remote convenience. The Frigidaire 5,000 BTU model uses mechanical controls, which offers simplicity and reliability. Most other units in this guide, like the LG and Amana models, include remote controls for easier operation. Remote controls allow you to adjust settings without getting up. If you value straightforward operation, mechanical controls may be sufficient. If you want convenience, look for a remote. This choice affects how you interact with the unit daily.
Consider voltage requirements
Verify your outlet voltage before purchasing. The LG 24,500 BTU model requires a 230V outlet, which is less common than standard 115V outlets. Most other units, including the LG 10,000 BTU and Amana 10,000 BTU models, operate on 115V. Using the wrong voltage can damage the unit or prevent it from starting. Check your window or wall outlet specifications to ensure compatibility. This is a critical safety and functionality check for larger, high-power units.
Evaluate weight for installation
Consider the weight if you need to lift the unit into place. The Frigidaire 5,000 BTU model weighs 35.3 pounds, which is manageable for most people. The GE 6,000 BTU model is exceptionally light at 9.1 pounds. In contrast, the LG 24,500 BTU model weighs 136 pounds, which may require assistance. Heavier units are often more stable but harder to install. Check the weight specification to determine if you need help with setup or mounting.
Review physical dimensions
Ensure the unit fits your window opening. The Frigidaire 5,000 BTU model is compact, measuring 6.3 inches wide. The LG 24,500 BTU model is much larger at 28.1 inches long. Measure your window frame carefully before buying. A unit that is too large will not fit, while one that is too small may leave gaps. Compare the width, height, and length specifications against your window dimensions. Proper fit ensures secure installation and prevents air leaks.
Frequently asked questions
What does auto restart do in a window air conditioner?
Auto restart restores your previous settings after a power outage. The unit remembers the temperature and mode you selected before the power cut. This feature is standard across all 6 picks, including the Frigidaire 5,000 BTU and LG 10,000 BTU models. You do not need to reset the controls manually after an interruption.
Which window AC is best for a small bedroom?
The Frigidaire 5,000 BTU Mechanical Window Air Conditioner is the top choice for small spaces. It covers 150 square feet and weighs 35.3 pounds. It features quiet operation and mechanical controls. The GE 6,000 BTU model is also suitable for rooms up to 250 square feet if you prefer remote control.
Do these units come with remote controls?
Most models on this list include remote controls for convenience. The LG 10,000 BTU, Frigidaire 8,000 BTU, LG 24,500 BTU, Amana 10,000 BTU, and GE 6,000 BTU units all feature remotes. The Frigidaire 5,000 BTU model uses mechanical controls instead. Check the control method in the specs to confirm.
Can I use these air conditioners in a basement?
Yes, several models are suitable for basements. The Amana 10,000 BTU Window AC is specifically noted as a best match for basements and medium rooms. It provides steady cooling with auto restart. The LG 24,500 BTU unit is also appropriate for large spaces like apartments or basements if you have a 230V outlet.
How loud are these window air conditioners during operation?
Quiet operation is a common feature across these picks. The Frigidaire 5,000 BTU and LG 10,000 BTU models are highlighted for their quiet performance. This makes them ideal for bedrooms or living spaces where noise is a concern. The LG 24,500 BTU unit also includes quiet operation despite its high output.
What is the difference between 115V and 230V models?
Voltage determines the power source required for installation. Most units, like the LG 10,000 BTU and Amana 10,000 BTU, use standard 115V outlets. The LG 24,500 BTU model requires a 230V outlet. You must ensure your window installation has the correct voltage before purchasing a high-power unit.