Antarctic Star 12,000 BTU Window Air Conditioners, vs Keystone 12,000 BTU Window Air Conditioner with
Updated July 2026 — Antarctic Star 12,000 BTU Window Air Conditioners, wins on modes, Keystone 12,000 BTU Window Air Conditioner with wins on heating btu and cooling area.
The Keystone 12 offers more versatility with its supplemental heating feature, making it a better choice for larger spaces and varying climates.
Why Antarctic Star 12,000 BTU Window Air Conditioners, is better
Lower Price
Antarctic Star is $30 cheaper.
Lightweight
Easier to move between windows.
Energy Saving Mode
Includes an energy-saving mode.
Why Keystone 12,000 BTU Window Air Conditioner with is better
Heating Feature
Includes 11,000 BTU supplemental heating.
Larger Coverage
Cools up to 550 sq. ft.
Smart Remote
Features an advanced temperature-sensing remote.
Overall score
Specifications
| Spec | Antarctic Star 12,000 BTU Window Air Conditioners, | Keystone 12,000 BTU Window Air Conditioner with |
|---|---|---|
| Price | $419.99 | $449.99 |
| Sales Rank | 316296 | 300521 |
| Remote Control | Yes | Smart Remote |
| Installation Kit | Included | Included |
| Dehumidifier | Yes | Yes |
Dimension comparison
Overview of the Antarctic Star 12 and Keystone 12
The Antarctic Star 12 and Keystone 12 both provide robust cooling solutions, but they cater to slightly different needs. The Antarctic Star 12, priced at $419.99, offers a cooling capacity of 12,000 BTU and is designed to cool spaces up to 400 square feet. In contrast, the Keystone 12, available for $449.99, also boasts a cooling capacity of 12,000 BTU but is capable of servicing larger areas up to 550 square feet. This key difference in coverage area might influence your choice depending on the size of your intended space.
Cooling Efficiency and Modes
Both air conditioners are equipped with a 12,000 BTU cooling capacity, but they feature different operational modes. The Antarctic Star 12 offers six functions, including cooling, fan, dehumidifier modes, and an energy-saving mode. This flexibility allows users to adjust settings based on varying weather conditions. Conversely, the Keystone 12 includes a supplemental heating feature of 11,000 BTU, making it a versatile option for year-round climate control. While the Antarctic Star focuses on cooling efficiency, the Keystone's dual functionality may be more appealing to those needing additional heat during colder months.
Design and Installation
When it comes to design, the Antarctic Star 12 has a lightweight and easy-to-move structure, allowing for convenient relocation between windows. This design is particularly beneficial for renters or those who may need to reposition the unit frequently. The Keystone 12, while also designed for window installation, emphasizes a space-saving format, making it ideal for medium-sized rooms without taking up additional floor space. Both units come with installation kits, ensuring ease of setup, though the Antarctic Star may edge out slightly in terms of portability.
Control Options
Control methods differ significantly between the two units. The Antarctic Star 12 features a digital display with LED lights and includes a remote control for easy adjustments without leaving your seat. This user-friendly design is great for nighttime use. Meanwhile, the Keystone 12 boasts a smart remote known as the I Sense remote, which displays the room temperature and adjusts the air conditioner's settings accordingly. This feature enhances comfort by ensuring the temperature remains consistent, giving the Keystone a slight advantage in terms of technological innovation.
Energy Efficiency
Energy efficiency is crucial in the long run, and both units have features aimed at reducing energy consumption. The Antarctic Star 12 includes an energy-saving mode that's designed to maintain comfort without excessive energy use. On the other hand, the Keystone 12 also prioritizes energy savings with its energy saver and sleep modes, which help lower electric bills. While the Antarctic Star is priced at about 17% less than the Keystone, the long-term savings from Keystone's additional heating functionality may make it a more cost-effective choice for those in cooler climates.
Performance in Various Conditions
The Antarctic Star 12 is designed to cool spaces up to 400 square feet effectively, making it suitable for smaller living areas, bedrooms, or dorm rooms. Its multiple cooling modes provide versatility to handle various weather conditions. In comparison, the Keystone 12 can efficiently cool larger spaces up to 550 square feet and includes a supplemental heating option for temperatures ranging from 23 to 76 degrees Fahrenheit. This makes the Keystone a more robust solution for larger areas or homes that might require additional heating functionality during colder months.
Customer Reception and Sales Rank
Regarding customer reception, the Antarctic Star 12 holds a sales rank of 316,296, while the Keystone 12 has a slightly better rank of 300,521. A lower sales rank typically indicates better sales performance, which could suggest higher customer satisfaction or demand. However, both units are relatively close in terms of popularity, indicating that each has its dedicated user base. The choice may come down to personal preferences regarding features, design, and price.
Which should you buy?
Choosing between the Antarctic Star 12 and the Keystone 12 largely depends on your specific needs and the environment in which the unit will be used. If you prioritize a lower price and are looking for efficient cooling in smaller spaces, the Antarctic Star 12, priced at $419.99, is a compelling option. However, if you need a unit that can handle larger areas and provide supplemental heating, the Keystone 12, priced at $449.99, offers more versatility, especially in fluctuating temperatures. Ultimately, consider both your budget and your climate needs before making a decision.

