Our Verdict
LG 8,000 BTU Smart Window Air Conditioner (LW8017ERSM) — 8.5/10. A reliable, energy-efficient window AC with Wi-Fi connectivity and quiet operation that's perfect for cooling medium-sized rooms up to 340 square feet.
LG 8,000 BTU Smart Window Air Conditioner (LW8017ERSM): Our Verdict
Score: 8.5/10 — The LG LW8017ERSM delivers reliable cooling with Wi-Fi connectivity and energy efficiency in a surprisingly quiet package, making it an excellent choice for medium-sized rooms up to 340 square feet.
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The LG LW8017ERSM represents the sweet spot in window air conditioners: powerful enough for most bedrooms and living spaces, yet energy-efficient enough to avoid shocking electric bills. With 8,000 BTU of cooling capacity, this unit can comfortably cool rooms between 300-340 square feet, making it ideal for standard-sized bedrooms, home offices, or small apartments.
What sets this model apart from basic window units is its smart connectivity. Through LG's ThinQ app, you can control temperature, fan speed, and schedules from anywhere, and it works seamlessly with Amazon Alexa and Google Assistant for voice control. This isn't just a gimmick—being able to turn on the AC before you get home on a sweltering day is genuinely convenient.
LG has also focused on energy efficiency with this model, earning it an ENERGY STAR certification with a 12.1 EER (Energy Efficiency Ratio). Combined with its relatively quiet operation and dual inverter technology, the LW8017ERSM offers a compelling package for anyone looking to upgrade from a basic window unit without breaking the bank.
Key Features
Wi-Fi enabled with LG ThinQ app support, plus compatibility with Amazon Alexa and Google Assistant for voice control and remote operation from anywhere.
Efficiently cools spaces up to 340 square feet with three cooling speeds and three fan speeds for customizable comfort.
ENERGY STAR certified with 12.1 EER rating, helping reduce electricity costs while maintaining effective cooling performance.
Operates at just 53 decibels on low setting, quieter than normal conversation, thanks to advanced compressor technology.
Automatically resumes previous settings after power outages, eliminating the need to reprogram your preferences.
Programmable on/off timer lets you schedule cooling cycles to maximize energy savings and ensure comfort when needed.
Technical Specifications
| Cooling Capacity | 8,000 BTU |
| Recommended Room Size | Up to 340 sq. ft. |
| Energy Efficiency Ratio (EER) | 12.1 |
| ENERGY STAR Certified | Yes |
| Voltage | 115V / 60Hz |
| Power Consumption (Cooling) | 660 watts |
| Dehumidification | 2.2 pints/hour |
| Noise Level | 53 dB (low) / 56 dB (high) |
| Fan Speeds | 3 |
| Cooling Speeds | 3 |
| Air Flow (CFM) | 235 |
| Smart Features | Wi-Fi, LG ThinQ, Alexa, Google Assistant |
| Thermostat Range | 60°F - 86°F |
| Window Width Range | 23" - 36" |
| Dimensions (W × H × D) | 18.9" × 12.2" × 20.3" |
| Weight | 58 lbs |
| Filter Type | Washable, reusable |
| Remote Control | Included |
| Warranty | 1 year parts/labor, 5 years compressor |
Pros & Cons
Pros
- Excellent smart home integration with reliable Wi-Fi connectivity
- Impressively quiet operation, especially on lower settings
- Strong energy efficiency with ENERGY STAR certification
- Effective dehumidification helps with humid climates
- Easy-to-use app with intuitive controls and scheduling
- Auto-restart feature after power outages
- Clean, modern aesthetic fits well in contemporary spaces
Cons
- Heavier than some competing models at 58 lbs, requiring two-person installation
- Initial app setup can be finicky with some router configurations
- No heating function (cooling only)
- Higher upfront cost compared to non-smart alternatives
- Condensation drainage requires occasional monitoring
Performance in Real-World Use
After testing the LG LW8017ERSM in a 280-square-foot bedroom over several weeks during peak summer temperatures, the unit proved impressively capable. On 95°F days, it brought the room from 82°F down to a comfortable 72°F in approximately 25 minutes—faster than the similarly-sized Frigidaire unit we tested previously.
The smart features aren't just marketing fluff. The LG ThinQ app proved genuinely useful for creating cooling schedules that aligned with our daily routine. Setting the AC to kick on 30 minutes before arriving home meant walking into a cool room without wasting energy all day. Voice control through Google Assistant worked reliably, though there's something amusing about commanding your air conditioner from bed.
Pro Tip: Use the app's "energy monitoring" feature to track actual power consumption. We found that running the unit on "low" overnight used approximately 40% less energy than "high" while maintaining comfortable sleeping temperatures.
Noise levels deserve special mention. At 53 decibels on the low setting, this LG unit runs noticeably quieter than most window ACs. While you'll still hear it—it's not silent—the sound profile is more of a gentle hum than the rattling roar of older units. On medium settings, it remained unobtrusive during TV watching or Zoom calls. Only on the highest setting does it become what you'd call "loud," and even then, it's comparable to a standard box fan.
Dehumidification performance exceeded expectations, pulling 2.2 pints per hour from the air. In our humid test environment, this made a noticeable difference in overall comfort—the room felt less clammy even at higher temperature settings. The condensation management worked well, though you'll want to ensure proper drainage during installation.
Installation proved straightforward with the included mounting hardware, though at 58 pounds, this definitely requires two people. The included side panels extend adequately for most window widths (23-36 inches), and the foam insulation strips provided a good seal. The entire process took about 45 minutes with a helper.
One minor frustration: the initial Wi-Fi setup took three attempts before successfully connecting to our network. LG's instructions suggest potential compatibility issues with certain router security settings. Once connected, however, the connection remained stable throughout testing with no dropouts.
Value for Money
At its typical price point of $370-$420, the LG LW8017ERSM sits in the premium range for 8,000 BTU window units. You can find basic models for $100-$150 less, but you'll sacrifice the smart features, quieter operation, and superior energy efficiency. Over a typical 5-month cooling season, the ENERGY STAR efficiency could save $30-$50 annually compared to less efficient models—not enormous, but it adds up over the unit's lifespan.
The real value proposition comes from the combination of features rather than any single standout element. The smart connectivity is convenient, the quiet operation is appreciated daily, and the energy efficiency provides peace of mind. For anyone planning to use this as their primary cooling solution for several years, the upfront premium feels justified.
Price Check: Prices fluctuate seasonally. We've seen this unit drop to around $350 during early spring sales, with prices climbing to $450+ during peak summer demand. If you can plan ahead, purchasing in March or April typically offers the best value.
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Final Verdict
Score: 8.5/10 — The LG LW8017ERSM earns its high rating through consistent performance across all key areas. It's not perfect—the weight makes installation challenging, and the premium price won't suit every budget—but it delivers where it matters most: effective, efficient, and quiet cooling with genuinely useful smart features.
This unit is ideal for tech-savvy homeowners who value convenience and are willing to pay a modest premium for quality. The smart home integration, quiet operation, and energy efficiency make it particularly well-suited for bedrooms, home offices, or any space where noise and power consumption matter. If you're cooling a similarly-sized space and smart features appeal to you, the LW8017ERSM represents one of the best options currently available.
For those on tighter budgets or who don't need smart features, more basic models will cool just as effectively for less money. But if you want the complete package—cooling performance, energy efficiency, quiet operation, and modern connectivity—the LG LW8017ERSM delivers exceptional value.
Frequently Asked Questions
Can the LG LW8017ERSM cool a 400 square foot room?
While LG rates this unit for up to 340 square feet, it can handle slightly larger spaces depending on factors like ceiling height, insulation, and sun exposure. In our testing, it managed a 320 sq ft room easily, but performance begins to decline noticeably beyond 350 square feet. For 400+ sq ft spaces, consider stepping up to a 10,000 BTU model for optimal comfort.
Does this air conditioner require a dedicated electrical circuit?
No, the LW8017ERSM operates on standard 115V household current and draws 660 watts, which is well within the capacity of most 15-amp circuits. However, avoid plugging it into the same circuit as other high-draw appliances. Use the dedicated outlet on a circuit with minimal other loads for best results and to prevent tripped breakers.
How difficult is it to install this unit alone?
At 58 pounds, we strongly recommend two-person installation. While mechanically straightforward—the mounting brackets and side panels install easily—safely lifting and positioning this weight into a window opening is challenging and potentially dangerous alone. Budget 45-60 minutes with a helper for safe, proper installation.
Will this work with a 5GHz Wi-Fi network?
No, the LW8017ERSM only connects to 2.4GHz Wi-Fi networks, which is standard for most smart home devices. If your router broadcasts both 2.4GHz and 5GHz networks with the same name (SSID), you may need to temporarily disable the 5GHz band during initial setup, or create a separate 2.4GHz network name. Once connected, it maintains a stable connection on 2.4GHz.
How often does the filter need cleaning?
LG recommends checking and cleaning the washable filter every two weeks during heavy use. In practice, we found monthly cleaning sufficient for normal residential use in moderately dusty environments. The filter slides out easily, rinses clean under tap water, and air dries in a few hours. Keeping it clean maintains optimal airflow and efficiency.