12,000 BTU U-Shaped Window Air Conditioner, Window vs Kenmore KM8K-R 8,000 BTU Window Air Conditioner
Updated July 2026 — 12,000 BTU U-Shaped Window Air Conditioner, Window wins on price and cooling area, Kenmore KM8K-R 8,000 BTU Window Air Conditioner wins on weight.
The Antarctic Star offers superior cooling capacity and quieter operation, making it the better choice for larger spaces. However, the Kenmore is more budget-friendly for smaller rooms.
Why 12,000 BTU U-Shaped Window Air Conditioner, Window is better
Cooling Capacity
12,000 BTU vs 8,000 BTU
Noise Level
Whisper-quiet at 45dB
Features
Includes dehumidifier function
Why Kenmore KM8K-R 8,000 BTU Window Air Conditioner is better
Price
$248.99 vs $466.99
Weight
44.8 lbs for easy setup
Energy Efficiency
CEER rating of 10.9
Overall score
Specifications
| Spec | 12,000 BTU U-Shaped Window Air Conditioner, Window | Kenmore KM8K-R 8,000 BTU Window Air Conditioner |
|---|---|---|
| Cooling BTU | 12,000 | 8,000 |
| Dehumidifier | Yes | No |
| Remote Control | Yes | Yes |
| Installation Kit | Yes | Yes |
| Energy Rating | N/A | CEER 10.9 |
Dimension comparison
Overview of the Products
When comparing the Antarctic Star 12,000 BTU U-Shaped Window Air Conditioner and the Kenmore KM8K-R 8,000 BTU Window Air Conditioner, the primary distinction lies in their cooling capacities and intended room sizes. The Antarctic Star unit is designed for larger spaces, cooling areas up to 550 sq. ft., while the Kenmore model effectively cools medium-sized rooms up to 350 sq. ft. This significant difference in capacity can play a crucial role in your decision depending on your space requirements.
The Antarctic Star is priced at $466.99, making it about 87% more expensive than the Kenmore, which is priced at $248.99. This price differential reflects the higher BTU rating and the features offered by the Antarctic Star, such as a dehumidifier function and a quieter operation.
Cooling Capacity and Efficiency
The Antarctic Star boasts a powerful 12,000 BTU cooling capacity, making it suitable for larger rooms up to 550 sq. ft. This higher capacity allows for rapid cooling in larger spaces, which can be a significant advantage during hot summer months. Conversely, the Kenmore operates at 8,000 BTUs, ideal for smaller areas up to 350 sq. ft.
In terms of energy efficiency, the Kenmore features a CEER rating of 10.9, which ensures strong cooling performance while keeping energy consumption low. Although the Antarctic Star does not provide a CEER rating, its design focuses on efficiency with features aimed at reducing utility costs. Therefore, if you require cooling for a larger area, the Antarctic Star might be the better choice despite its higher price.
Noise Levels and Operation
When it comes to noise levels, the Antarctic Star is engineered for whisper-quiet operation at only 45dB. This low noise level is particularly beneficial for bedrooms or workspaces where a serene environment is essential. In contrast, the Kenmore operates at a slightly higher noise level, typical for window units in this category, but does not specify its exact decibel rating.
Both units offer multiple fan speeds and operating modes, but the Antarctic Star stands out with its customizable Sleep Mode that adjusts temperatures for optimal comfort during the night. This feature may appeal to those sensitive to noise and temperature fluctuations while sleeping.
Installation and Setup
The installation process is straightforward for both air conditioners. The Antarctic Star comes with a comprehensive installation kit that includes a dedicated support bracket, making it easier to set up in standard window frames. The unit is designed to fit windows with a width of 24 to 48 inches and a sill depth of up to 11 inches.
Similarly, the Kenmore is also designed for easy installation, requiring no structural changes. Its compact design weighs only 44.8 lbs, allowing for single-person setup. With a 4.9 ft. power cord, it offers flexible placement options, making installation hassle-free for most users.
Features and Functionality
The Antarctic Star provides a versatile 3-in-1 climate control system, combining an air conditioner, dehumidifier, and fan. This multifunctionality is ideal for those living in humid climates, as it can effectively manage both temperature and moisture levels. Additionally, it features a 24-hour timer and six operating modes, offering the user extensive control over their comfort levels.
On the other hand, the Kenmore offers a user-friendly experience with a digital display and remote control, allowing users to change settings from anywhere in the room. It includes multiple operating modes such as Sleep, Auto, and Eco, ensuring that comfort is prioritized while maintaining energy efficiency.
Maintenance and Cleanliness
Maintenance is crucial for air conditioners to operate efficiently over time. The Antarctic Star features a washable mesh filter that is easy to clean, ensuring optimal air quality and performance without the need for frequent replacements. This emphasis on user maintenance can help prolong the unit's lifespan.
The Kenmore also includes a reusable washable filter, which helps improve air quality and reduces maintenance costs. The auto-restart feature is particularly useful, as it allows the unit to resume its previous settings after a power interruption, minimizing inconvenience during outages.
Price Comparison
The Antarctic Star is priced at $466.99, while the Kenmore is more economical at $248.99, making it about 47% cheaper. This price difference reflects the larger cooling capacity and additional features of the Antarctic Star. If budget is a primary concern, the Kenmore offers solid performance for smaller spaces at a significantly lower cost.
However, for consumers requiring more robust cooling solutions for larger rooms, the increased investment in the Antarctic Star may be justified. The choice largely depends on individual needs, room sizes, and budget constraints.
Which should you buy?
Choosing between the Antarctic Star 12,000 BTU U-Shaped Window Air Conditioner and the Kenmore KM8K-R 8,000 BTU Window Air Conditioner depends on your specific needs. If you require an air conditioner for a larger space and value features like a dehumidifier and quieter operation, the Antarctic Star is worth the investment at $466.99. However, if you're looking for a cost-effective solution for medium-sized rooms, the Kenmore, priced at $248.99, offers reliable cooling performance without breaking the bank. Ultimately, your choice should align with your room size, budget, and preferred features.

