Keystone 5,000 BTU Window Air Conditioner and vs LG 12,200 BTU Window Air Conditioner with
Updated July 2026 — Keystone 5,000 BTU Window Air Conditioner and wins on noise, LG 12,200 BTU Window Air Conditioner with wins on price and size.
The Keystone 5 is a budget-friendly option for small spaces, while the LG 12 offers greater cooling power and heating capabilities for larger areas.
Why Keystone 5,000 BTU Window Air Conditioner and is better
Price
Keystone 5 is $309.99, cheaper than LG 12 at $499.99.
Energy Efficiency
Keystone 5 has dedicated energy-saving modes.
Compact Size
Keystone 5 is ideal for small rooms up to 150 sq. ft.
Why LG 12,200 BTU Window Air Conditioner with is better
Cooling Capacity
LG 12 cools rooms up to 570 sq. ft.
Heating Option
LG 12 includes supplemental heating.
Noise Level
LG 12 operates at a lower noise level of 50 dB.
Overall score
Specifications
| Spec | Keystone 5,000 BTU Window Air Conditioner and | LG 12,200 BTU Window Air Conditioner with |
|---|---|---|
| Cooling BTU | 5,000 | 12,200 |
| Heating BTU | 0 | 3,800 |
| Noise Level | 52 dB | 50 dB |
| Remote Control | Yes | Yes |
| Energy Saver | Yes | No |
Dimension comparison
Overview of Keystone 5 and LG 12
The Keystone 5 is priced at $309.99, making it about 17% cheaper than the LG 12, which retails for $499.99. This price difference positions the Keystone 5 as a budget-friendly option for those looking to cool smaller spaces. Conversely, the LG 12 offers greater cooling power, making it suitable for larger areas. Understanding your cooling needs will help you make the right choice between these two air conditioning units.
Cooling Capacity Comparison
The LG 12 boasts a cooling capacity of 12,200 BTU, which allows it to effectively cool rooms up to 570 square feet. In contrast, the Keystone 5 has a cooling capacity of 5,000 BTU, making it ideal for smaller spaces up to 150 square feet. If you require air conditioning for a larger living area, the LG 12 is the clear winner. However, for smaller rooms like bedrooms or bathrooms, the Keystone 5 provides sufficient cooling without the excess power, emphasizing efficiency for compact living.
Heating Features
An important distinction between these two units is that the LG 12 includes a supplemental heat option. This feature is particularly beneficial for transitional seasons when cooling is not necessary, but warmth is desired. The Keystone 5, on the other hand, does not offer any heating capabilities. If you live in an area with varying temperatures throughout the year, the LG 12's dual functionality makes it a more versatile choice.
Noise Levels
Both units operate quietly, but the LG 12 slightly edges out with a noise level of as low as 50 dB, compared to the Keystone 5's 52 dB. While the difference may seem minor, it could be significant for users sensitive to noise. The Keystone 5 is designed for quiet operation, making it suitable for bedrooms and nurseries, but if absolute silence is paramount, the LG 12 may be the better option.
Control Features
The Keystone 5 features a smart remote control that takes the temperature of the room and adjusts accordingly for optimal comfort. It also includes a programmable timer for convenience. In comparison, the LG 12 also comes with a remote control and offers electronic controls with multiple fan speeds. Both units provide user-friendly controls, but the Keystone’s smart remote adds a layer of convenience that might appeal to tech-savvy users.
Energy Efficiency
Energy efficiency is a crucial consideration when choosing an air conditioner. The Keystone 5 has energy-saving modes that help reduce electricity usage, making it an economically savvy option. The LG 12 also features energy-efficient operation but does not explicitly mention energy-saving modes in its specifications. If minimizing your energy bills is a priority, the Keystone 5 may have the edge due to its dedicated energy-saving features.
Maintenance and Cleaning
Both air conditioners prioritize cleanliness and maintenance, but they approach it differently. The Keystone 5 includes a Check Filter alert, which reminds users when it’s time to clean the mesh filter, ensuring optimal performance. The LG 12 features a removable and washable filter, promoting easy maintenance. While both units are designed for user convenience, the Keystone’s alert system may help keep users more proactive about maintenance.
Which should you buy?
Choosing between the Keystone 5 and the LG 12 ultimately depends on your specific cooling and heating needs. If you’re looking for a budget-friendly option for a small room, the Keystone 5 at $309.99 offers excellent value, particularly with its energy-saving features and smart remote control. However, if you require a more powerful unit that can also provide heat for larger spaces, the LG 12, despite its higher price of $499.99, is likely the better investment due to its 12,200 BTU capacity and supplemental heating option.

