Honeywell 10,000 BTU Digital Window Air vs Kenmore KM8K-R 8,000 BTU Window Air Conditioner
Updated July 2026 — Honeywell 10,000 BTU Digital Window Air wins on depth and width, Kenmore KM8K-R 8,000 BTU Window Air Conditioner wins on weight and power cord length.
The Honeywell 10 offers superior cooling capacity and quieter operation, making it the better choice for larger spaces. The Kenmore KM8K-R is more budget-friendly and suitable for smaller rooms.
Why Honeywell 10,000 BTU Digital Window Air is better
Cooling Capacity
10,000 BTU vs 8,000 BTU
Noise Level
58 dB vs unspecified
Room Coverage
450 sq ft vs 350 sq ft
Why Kenmore KM8K-R 8,000 BTU Window Air Conditioner is better
Price
$248.99 vs $285.17
Energy Efficiency
CEER 10.9 vs unspecified
Weight
44.8 lbs vs unspecified
Overall score
Specifications
| Spec | Honeywell 10,000 BTU Digital Window Air | Kenmore KM8K-R 8,000 BTU Window Air Conditioner |
|---|---|---|
| Cooling BTU | 10,000 | 8,000 |
| Room Size | 450 sq ft | 350 sq ft |
| Noise Level | 58 dB | N/A |
| Modes | 4 | 4 |
| Price | $285.17 | $248.99 |
Dimension comparison
Overview of Honeywell 10 and Kenmore KM8K-R
When comparing the Honeywell 10 and the Kenmore KM8K-R, the key difference lies in their cooling capacities and room coverage. The Honeywell 10 has a cooling capacity of 10,000 BTU, making it suitable for spaces up to 450 square feet. In contrast, the Kenmore KM8K-R offers 8,000 BTU of cooling power, targeting medium-sized rooms up to 350 square feet. This means that if you have a larger area to cool, the Honeywell 10 may be the better option, while the Kenmore KM8K-R is tailored for smaller spaces.
Design and Installation
The design and installation processes of both air conditioners are user-friendly, yet they cater to different needs. The Honeywell 10 features a compact design measuring 19.76" W x 22.91" D x 15.16" H, which fits standard windows with a minimum height of 16 inches. This makes it a viable option for various window sizes. The Kenmore KM8K-R also installs easily into standard windows and is designed for quick setup without structural changes. Its 4.9 ft. power cord offers placement flexibility. While both units are manageable for single-person installation, the Honeywell 10’s larger cooling capacity may require careful consideration of window dimensions.
Cooling Performance
In terms of cooling performance, the Honeywell 10 outshines the Kenmore KM8K-R with its higher BTU rating. The Honeywell unit provides rapid cooling for areas up to 450 square feet, making it ideal for larger living spaces or rooms with more heat-generating appliances and occupants. On the other hand, the Kenmore KM8K-R effectively cools medium-sized rooms, reaching up to 350 square feet. For those in smaller environments, the Kenmore might suffice, but if you require a robust cooling solution for a larger area, the Honeywell's additional 2,000 BTU makes a significant difference.
Noise Levels
When it comes to noise levels, the Honeywell 10 operates at a sound level as low as 58 dB, which is exceptionally quiet for an air conditioner. This makes it a great choice for bedrooms or areas where low noise is essential. The Kenmore KM8K-R does not specify noise levels as precisely, but it is marketed for quiet operation, making it suitable for similar environments. Customers looking for a peaceful atmosphere may gravitate towards the Honeywell 10, especially given its quantifiable lower noise rating.
Energy Efficiency
Energy efficiency is a crucial factor for many buyers, and both units offer features that minimize electricity consumption. The Honeywell 10 has an eco energy-saving mode, contributing to its overall efficiency. While specific CEER ratings are not provided for the Honeywell, the Kenmore KM8K-R boasts a CEER of 10.9, which indicates strong cooling performance while reducing energy costs. Considering the Honeywell's features, it is likely designed with energy efficiency in mind as well, but the Kenmore's explicit rating gives it an edge in quantifiable terms.
Control Features
Both the Honeywell 10 and Kenmore KM8K-R come equipped with convenient control features. The Honeywell 10 includes a remote control and a user-friendly LED control panel, allowing users to easily adjust settings without leaving their seats. It also offers four modes: Auto, Cool, Fan, and Dry. Conversely, the Kenmore KM8K-R provides digital controls with a sleek touch panel and an included remote, making it just as easy to operate. Both units allow for temperature adjustments, but the Honeywell’s additional modes may provide more versatility for different cooling needs.
Price Comparison
The Honeywell 10 is priced at $285.17, while the Kenmore KM8K-R is available for $248.99. This makes the Kenmore about 13% cheaper than the Honeywell. If budget constraints are a major factor in your purchasing decision, the Kenmore offers a more economical option for those needing effective cooling for medium-sized rooms. However, the price difference should be weighed against the Honeywell's larger coverage area and potentially superior performance.
Which should you buy?
Ultimately, the choice between the Honeywell 10 and the Kenmore KM8K-R depends on your specific cooling needs and budget. If you have a larger space of up to 450 square feet and prioritize quieter operation, the Honeywell 10 is likely the better investment despite its higher price. Conversely, if you need an efficient and cost-effective solution for a medium-sized room, the Kenmore KM8K-R offers solid performance at a more affordable price point. Consider your room size, noise preferences, and budget to make the best decision for your cooling needs.

