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BLACK+DECKER Window Air Conditioner 12000 BTU, AC vs Keystone 12,000 BTU Window Mounted Inverter Air

Updated July 2026 — BLACK+DECKER Window Air Conditioner 12000 BTU, AC wins on noise level, Keystone 12,000 BTU Window Mounted Inverter Air wins on sales rank and price.

The BLACK+DECKER offers reliable performance at a lower price, while the Keystone provides advanced energy efficiency features. Choose based on your priorities.

Why BLACK+DECKER Window Air Conditioner 12000 BTU, AC is better

Price

BLACK+DECKER is $10 cheaper

Brand Reliability

BLACK+DECKER has a better sales rank

Control Features

BLACK+DECKER has a full-function remote

Why Keystone 12,000 BTU Window Mounted Inverter Air is better

Energy Efficiency

Keystone has inverter technology

Quick Cooling

Keystone features FlashCool function

Noise Levels

Keystone is designed for quiet operation

Overall score

BLACK+DECKER Window Air Conditioner 12000 BTU, AC
85
Keystone 12,000 BTU Window Mounted Inverter Air
78

Specifications

SpecBLACK+DECKER Window Air Conditioner 12000 BTU, ACKeystone 12,000 BTU Window Mounted Inverter Air
Cooling BTU1200012000
Remote ControlYesYes
Energy SaverYesYes
Inverter TechNoYes
Filter AlertNoYes

Dimension comparison

BLACK+DECKER Window Air Conditioner 12000 BTU, ACKeystone 12,000 BTU Window Mounted Inverter Air

Overview of the Products

When it comes to window air conditioners, the BLACK+DECKER Window Air Conditioner and the Keystone 12,000 BTU Window Mounted Inverter Air Conditioner are two popular options. The BLACK+DECKER is priced at $349.99, while the Keystone comes in slightly higher at $359.99. Both units are designed to cool spaces of up to 550 square feet, making them suitable for medium-sized rooms. Their price difference of about 3% is notable for budget-conscious buyers.

Cooling Power and Efficiency

Both air conditioners offer 12,000 BTUs of cooling power, making them equally capable of cooling rooms up to 550 square feet. However, the Keystone unit features inverter technology, which allows it to control motor speed more efficiently. This technology can lead to energy savings of about 20% compared to standard models. In contrast, the BLACK+DECKER uses R32 refrigerant, which is also energy-efficient but does not have the inverter advantage. Therefore, while both units cool effectively, the Keystone may provide better long-term savings on energy bills.

Control Features

Control features are essential for convenience, and both units provide remote control access. The BLACK+DECKER comes with a full-function remote, allowing users to manage settings such as sleep mode, energy saver, and a 24-hour timer. The Keystone unit also includes a remote and offers additional convenience features like Eco and FlashCool modes for rapid cooling. While both remotes enhance usability, the Keystone's FlashCool function may be particularly appealing for those needing quick relief from heat.

Installation Process

Installation can be a hassle for window units, but both the BLACK+DECKER and Keystone air conditioners are designed for relatively easy setup. The BLACK+DECKER features accordion-style side panels that fit standard double-hung windows ranging from 23" to 36" wide. The Keystone model, while not detailed on specific installation features, is designed to be window-mounted and should similarly accommodate standard window sizes. Users can expect a straightforward installation experience with both units.

Noise Levels

Noise levels can affect comfort, especially in bedrooms or quiet spaces. The BLACK+DECKER provides three cooling speeds, but specific noise ratings are not mentioned. In contrast, the Keystone unit is designed with quiet operation in mind, which may be advantageous for users sensitive to sound. If noise is a significant factor in your decision, the Keystone's emphasis on quiet efficiency may make it the better choice.

Maintenance and Cleaning

Both air conditioners come with features that facilitate maintenance. The BLACK+DECKER includes a washable filter, ensuring users can easily clean it to maintain efficiency. The Keystone also features a washable filter and provides a clean filter alert to remind users when it's time for maintenance. While both units have similar cleaning capabilities, the Keystone's alert system may offer added convenience, ensuring optimal performance.

Brand and Reliability

Brand reputation plays a crucial role in purchasing decisions. BLACK+DECKER has a strong presence in the home appliance market and is known for its reliable products, as evidenced by its sales rank of 52,698. On the other hand, Keystone, while a reputable brand, has a higher sales rank of 166,474 for this model, indicating it may not be as widely favored. Buyers looking for proven reliability might lean towards the BLACK+DECKER.

Which should you buy?

Choosing between the BLACK+DECKER Window Air Conditioner and the Keystone 12,000 BTU Window Mounted Inverter Air Conditioner ultimately depends on your specific needs. If you prioritize energy efficiency and quick cooling capabilities, the Keystone's inverter technology and FlashCool function could be worth the additional $10. However, if brand reliability and straightforward remote control features are more important to you, the BLACK+DECKER offers excellent performance at a slightly lower price.