BLACK+DECKER Window Air Conditioner 12000 BTU, AC vs Kenmore KM8K-R 8,000 BTU Window Air Conditioner
Updated July 2026 — BLACK+DECKER Window Air Conditioner 12000 BTU, AC wins on cooling area and remote control, Kenmore KM8K-R 8,000 BTU Window Air Conditioner wins on price and weight.
The BLACK+DECKER unit is more powerful and better for larger spaces, while the Kenmore offers great value for smaller rooms.
Why BLACK+DECKER Window Air Conditioner 12000 BTU, AC is better
Cooling Capacity
12,000 BTU vs 8,000 BTU
Room Size
Cools up to 550 sq. ft. vs 350 sq. ft.
Features
More advanced remote control features
Why Kenmore KM8K-R 8,000 BTU Window Air Conditioner is better
Price
$248.99 vs $349.99
Weight
Lighter at 44.8 lbs.
Energy Efficiency
CEER rating of 10.9
Overall score
Specifications
| Spec | BLACK+DECKER Window Air Conditioner 12000 BTU, AC | Kenmore KM8K-R 8,000 BTU Window Air Conditioner |
|---|---|---|
| BTU | 12000 | 8000 |
| Room Size | 550 sq. ft. | 350 sq. ft. |
| Price | $349.99 | $248.99 |
| Weight | N/A | 44.8 lbs. |
| Energy Rating | N/A | CEER 10.9 |
| Modes | 4 | 4 |
Dimension comparison
Overview of the Products
The BLACK+DECKER Window Air Conditioner is designed to cool larger spaces compared to the Kenmore KM8K-R, making it a more powerful option for substantial rooms. With a cooling capacity of 12,000 BTU, it can effectively chill areas up to 550 square feet. In contrast, the Kenmore model offers a cooling capacity of 8,000 BTU, suitable for medium-sized rooms up to 350 square feet. This difference in BTU rating indicates that the BLACK+DECKER unit is better suited for larger living areas, while the Kenmore is ideal for smaller spaces.
Cooling Performance
When it comes to cooling performance, the BLACK+DECKER unit excels with its ability to cool rooms up to 550 square feet effectively, making it a robust choice for master bedrooms or living rooms. The unit operates at four different levels—auto, low, medium, and high—allowing users to tailor the cooling to their comfort needs. Meanwhile, the Kenmore KM8K-R targets medium-sized rooms up to 350 square feet, offering a variety of modes such as Sleep, Auto, and Eco, along with three fan speeds. While both units provide efficient cooling, the BLACK+DECKER's higher BTU capacity gives it a clear edge in larger environments.
Energy Efficiency
Energy efficiency is a vital factor for many consumers, and both units claim to reduce energy consumption. The BLACK+DECKER air conditioner uses R32 refrigerant, which has minimal impact on the ozone layer, enhancing its eco-friendliness. Although the specific energy efficiency rating isn't provided, its design suggests a focus on lowering energy costs. Conversely, the Kenmore KM8K-R boasts a CEER rating of 10.9, indicating strong cooling performance while minimizing utility expenses. Overall, while both units are designed to be energy-efficient, the Kenmore's specific rating might appeal to environmentally conscious buyers.
Ease of Installation
Installation can be a daunting task for many, but both the BLACK+DECKER and Kenmore units are designed with user-friendly installation in mind. The BLACK+DECKER air conditioner features accordion-style side panels that allow for easy fitting into standard double-hung windows, accommodating windows between 23 and 36 inches wide. The Kenmore KM8K-R also emphasizes quick installation, fitting into most standard windows without structural changes. With the BLACK+DECKER unit being slightly larger and more powerful, its installation simplicity gives it an upper hand for users who prioritize hassle-free setup.
Remote Control Features
Both air conditioners come equipped with remote controls, enhancing convenience for users. The BLACK+DECKER unit's remote allows for control over various settings, including its sleep mode and energy saver functions. It also features a 24-hour timer that adds to its usability. On the other hand, the Kenmore KM8K-R remote provides real-time display feedback and controls multiple modes, ensuring that users can easily adjust their comfort settings from across the room. While both remotes enhance usability, the BLACK+DECKER unit offers a broader range of features, appealing to those who value comprehensive control.
Weight and Portability
Weight and portability are crucial considerations for air conditioner users who may need to move units between locations or store them seasonally. The BLACK+DECKER unit weighs considerably more, given its larger capacity, although the exact weight is not specified. The Kenmore KM8K-R is lighter at 44.8 lbs., making it easier for single-person setups and seasonal storage. If portability is a significant concern, the Kenmore could be more appealing due to its lighter design, although the BLACK+DECKER’s extra cooling power might justify its heft for those who need to cool larger areas.
Price Comparison
The BLACK+DECKER Window Air Conditioner is priced at $349.99, while the Kenmore KM8K-R is available for $248.99. This makes the BLACK+DECKER unit about 40% more expensive than the Kenmore model. While the higher price reflects the BLACK+DECKER's greater cooling capacity and features, budget-conscious consumers may find the Kenmore KM8K-R a more attractive option without sacrificing essential functionalities. The significant price difference could sway potential buyers, especially those looking for a balance between cost and performance.
Which should you buy?
Choosing between the BLACK+DECKER Window Air Conditioner and the Kenmore KM8K-R ultimately depends on your specific cooling needs and budget. If you require a powerful unit for larger spaces and appreciate advanced features like a 24-hour timer and energy saver functions, the BLACK+DECKER is the superior choice. However, if you are looking for an energy-efficient solution for smaller rooms at a lower price point, the Kenmore KM8K-R provides excellent value without compromising on essential features. Consider your room size, comfort needs, and budget to make the best decision for your air conditioning requirements.

