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Keystone 12,000 BTU Window Air Conditioner with vs LG 12,200 BTU Window Air Conditioner with

Updated July 2026 — Keystone 12,000 BTU Window Air Conditioner with wins on heating, LG 12,200 BTU Window Air Conditioner with wins on price and noise.

The LG 12 offers slightly better cooling capacity and quieter operation, making it a more appealing choice for some users. However, the Keystone 12 is more budget-friendly.

Why Keystone 12,000 BTU Window Air Conditioner with is better

Price

Keystone 12 is $50 cheaper than LG 12.

Energy Efficiency

Keystone has energy saver modes.

Smart Remote

Keystone features an advanced temperature-sensing remote.

Why LG 12,200 BTU Window Air Conditioner with is better

Cooling Capacity

LG 12 has a higher cooling capacity of 12,200 BTU.

Noise Level

LG 12 operates at a low sound level of 50dB.

User Control

LG 12 has straightforward electronic controls.

Overall score

Keystone 12,000 BTU Window Air Conditioner with
75
LG 12,200 BTU Window Air Conditioner with
80

Specifications

SpecKeystone 12,000 BTU Window Air Conditioner withLG 12,200 BTU Window Air Conditioner with
Cooling BTU12,00012,200
Heating BTU11,000Supplemental
Room Coverage550 sq ft570 sq ft
Noise LevelNot specified50 dB
Remote ControlSmart RemoteElectronic

Dimension comparison

Keystone 12,000 BTU Window Air Conditioner withLG 12,200 BTU Window Air Conditioner with

Overview of the Keystone 12 and LG 12

The Keystone 12 is priced at $449.99, making it about 10% cheaper than the LG 12, which retails for $499.99. Both models are designed to provide cooling and supplemental heating for medium-sized rooms, but they differ in capacity and features, catering to varying user preferences.

The Keystone 12 boasts a cooling capacity of 12,000 BTU and an additional heating capacity of 11,000 BTU, making it suitable for spaces up to 550 square feet. In comparison, the LG 12 offers a slightly higher cooling capacity of 12,200 BTU, effectively cooling rooms up to 570 square feet. This slight difference can influence the choice depending on the specific size of the room you need to cool or heat.

Performance and Efficiency

In terms of performance, both air conditioners offer reliable cooling and supplemental heating, but the Keystone 12 emphasizes energy efficiency with its "Energy Saver" and "Sleep" modes. These features help manage electricity usage, potentially lowering your electric bill during peak usage times.

The LG 12 also incorporates efficiency-focused features, such as multiple fan speeds and a low noise operation of 50dB at its lowest setting. This is particularly beneficial for users who prioritize a quieter environment. However, the Keystone's programmable 24-hour timer adds an extra layer of convenience for those looking to customize their heating and cooling schedules.

Heating Capabilities

When it comes to supplemental heating, both models provide adequate options for cooler days, but they operate under different principles. The Keystone 12's heating mode is designed as a supplemental source, intended for use when outside temperatures are between 23 and 76 degrees Fahrenheit. Conversely, the LG 12 also features a supplemental heating option, but there are no specific temperature guidelines provided for its operation.

This distinction may be crucial for users in colder climates, as the Keystone 12 specifies conditions under which its heating function is effective. While both units can provide warmth, the Keystone offers clarity on its usage parameters.

User Control and Convenience

Both models come with remote controls, enhancing user convenience. The Keystone 12 features a unique "I Sense" remote that measures the room's temperature and communicates with the AC unit to optimize performance. This smart feature ensures that the room maintains a comfortable temperature without constant manual adjustments.

On the other hand, the LG 12 offers straightforward electronic controls that allow users to select from multiple cooling and heating speeds. While both remotes simplify operation, the Keystone's advanced temperature-sensing capability could be a deciding factor for tech-savvy consumers looking for precise temperature management.

Installation and Maintenance

Installation ease is another area where both models excel. The Keystone 12 comes with a window installation kit, making it user-friendly for those who prefer a DIY setup. Similarly, the LG 12 includes an easy window installation kit that facilitates a hassle-free setup process.

Maintenance is also straightforward for both units. The LG 12 features a removable and washable filter, promoting clean air circulation, while the Keystone 12 focuses on energy efficiency and customizable settings to lower energy usage and costs. Both units ensure that upkeep is manageable, but the LG's filter feature may appeal to users focused on air quality.

Noise Levels

Noise levels can significantly impact user experience, especially in residential settings. The LG 12 operates at a low sound level of 50dB in its quiet mode, which is ideal for bedrooms or study areas. This feature makes it an excellent choice for users sensitive to noise.

While the Keystone 12 does not specify its noise levels, it is essential to consider that any air conditioner will produce some sound during operation. If noise reduction is a priority, the LG 12's lower dB rating may make it the more appealing option.

Price Comparison

The Keystone 12 is priced at $449.99, which is $50 cheaper than the LG 12, priced at $499.99. This 10% price difference may influence budget-conscious buyers who are looking for effective cooling and heating solutions without overspending.

Both units deliver essential features for air conditioning and heating, but the Keystone 12 may attract those looking for a cost-effective solution. Conversely, the higher price of the LG 12 may be justified by its additional features and slightly larger capacity.

Which should you buy?

Choosing between the Keystone 12 and LG 12 ultimately depends on your specific needs and preferences. If budget is your primary concern, the Keystone 12 offers a reliable solution at a lower price point, equipped with energy-saving features and a smart remote. However, if you prioritize a slightly higher cooling capacity, quieter operation, and a straightforward control interface, the LG 12 may be worth the extra investment. Consider your room size, desired features, and budget to make the best choice for your home comfort.