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Kenmore KM8K-R 8,000 BTU Window Air Conditioner vs LG 12,200 BTU Window Air Conditioner with

Updated July 2026 — Kenmore KM8K-R 8,000 BTU Window Air Conditioner wins on modes and fan speeds, LG 12,200 BTU Window Air Conditioner with wins on cooling btu and room size.

The Kenmore KM8K-R is a budget-friendly option for smaller spaces, while the LG 12 offers superior cooling capacity and features for larger areas.

Why Kenmore KM8K-R 8,000 BTU Window Air Conditioner is better

Price

Kenmore is significantly cheaper at $248.99.

Weight

Kenmore is lighter at 44.8 lbs, making it easier to install.

Modes

Kenmore offers multiple operational modes for comfort.

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

Cooling Power

LG cools larger rooms up to 570 sq. ft.

Noise Level

LG operates at a low noise level of 50dB.

Heating Feature

LG includes supplemental heating for year-round use.

Overall score

Kenmore KM8K-R 8,000 BTU Window Air Conditioner
75
LG 12,200 BTU Window Air Conditioner with
85

Specifications

SpecKenmore KM8K-R 8,000 BTU Window Air ConditionerLG 12,200 BTU Window Air Conditioner with
Price$248.99$499.99
Energy EfficiencyCEER 10.9N/A
Auto RestartYesYes
Remote ControlYesYes
InstallationEasyEasy

Dimension comparison

Kenmore KM8K-R 8,000 BTU Window Air ConditionerLG 12,200 BTU Window Air Conditioner with

Overview of the Kenmore KM8K-R and LG 12

When comparing the Kenmore KM8K-R and the LG 12, the most notable difference is their cooling capacity and price. The Kenmore unit is priced at $248.99, while the LG model is significantly higher at $499.99. This price difference of about 100% indicates that potential buyers should assess their specific cooling needs against their budget.

The Kenmore KM8K-R offers 8,000 BTU cooling power, suitable for spaces up to 350 square feet, making it ideal for smaller rooms like bedrooms and home offices. In contrast, the LG 12 boasts a more robust 12,200 BTU capacity, capable of cooling larger rooms of up to 570 square feet. This makes the LG model a better choice for larger living areas or open floor plans.

Cooling Performance

The cooling performance of these air conditioners varies significantly, with the LG unit having a clear advantage. The Kenmore KM8K-R effectively cools rooms up to 350 square feet, while the LG 12 can handle spaces up to 570 square feet. This means that if you need to cool a larger area, the LG model is the better option for about $251 more.

Additionally, the LG 12 features two cooling speeds, allowing for more tailored temperature control, while the Kenmore KM8K-R includes three fan speeds but is limited to one cooling setting. If you prioritize a more customized cooling experience, the LG unit may be worth the investment.

Noise Levels

Noise levels are crucial for maintaining a comfortable environment, especially in bedrooms or quiet spaces. The Kenmore KM8K-R emphasizes quiet operation, although specific dB levels are not provided. The LG 12 operates at sound levels as low as 50dB in low mode, designed to minimize noise disruption.

If peace and quiet are essential for your living situation, the LG 12 might offer a slight edge due to its explicitly stated low noise performance. However, the Kenmore's focus on quiet cooling may still appeal to those looking for a more affordable option.

Installation Process

Both air conditioners promise easy installation, but they cater to slightly different experiences. The Kenmore KM8K-R is designed for quick installation into standard windows without the need for structural changes, making it user-friendly for seasonal setups. Its weight of 44.8 lbs allows for easy handling.

On the other hand, the LG 12 comes with an easy window installation kit, streamlining the setup process further. If hassle-free installation is a priority, both models are comparable, but the Kenmore's lighter weight may provide a slight advantage for single-person installations.

Energy Efficiency

Energy efficiency is a significant factor when choosing an air conditioner, as it impacts long-term utility costs. The Kenmore KM8K-R boasts a CEER rating of 10.9, indicating strong cooling performance with reduced energy consumption. This efficiency can help lower your electric bills over time.

In contrast, the LG 12 does not provide a specific energy efficiency rating, but it does feature an auto-restart function that helps maintain energy savings by turning the unit back on after a power outage. While both units aim for energy efficiency, the Kenmore is explicitly rated, making it easier for consumers to gauge its efficiency.

Additional Features

The additional features of each model cater to different user preferences. The Kenmore KM8K-R includes several operational modes—Sleep, Auto, Eco, and Cooling—allowing users to adjust based on their comfort needs. Its washable filter enhances air quality and lowers maintenance requirements.

Conversely, the LG 12 offers supplemental heating, making it versatile for year-round use. This feature could be particularly appealing for those living in regions with variable climates. The LG also includes a 24-hour timer, providing customizable control over cooling and heating schedules.

Price Comparison

Price is one of the most significant factors when deciding between the Kenmore KM8K-R and the LG 12. The Kenmore is priced at $248.99, which is about 50% cheaper than the LG 12, priced at $499.99. This considerable price gap suggests that the Kenmore may be more appealing for those on a tighter budget or those with smaller cooling needs.

However, the LG 12 justifies its higher price with additional features and greater cooling capacity. If your budget allows for it and you need to cool larger spaces, the investment in the LG may prove beneficial in the long run.

Which should you buy?

Ultimately, the choice between the Kenmore KM8K-R and the LG 12 hinges on your specific needs and budget. If you require an energy-efficient, quieter air conditioner for medium rooms and prefer a more budget-friendly option, the Kenmore KM8K-R is an excellent choice. However, if you need powerful cooling for larger spaces and value the added feature of supplemental heating, the LG 12 is worth the investment despite its higher price point. Consider your space, budget, and desired features carefully to make the best decision for your home.