The LG Artcool Deluxe KNSAL delivers efficient year-round comfort with advanced features like LGRED° Core technology that ensures 100% heating capacity down to -13° F. It includes Dual Vane technology for precise airflow, an Occupancy Sensor for energy savings, and innovations such as Soft Air, Freeze Cleaning, and Auto Clean+. While it offers strong performance in heating and cooling, it has fewer power options compared to some competitors and lacks certain sensors found in premium variants. This unit is ideal for homeowners seeking reliable climate control in moderate to cold climates.
Full review
Cold climate heating performance
The LG Artcool Deluxe indoor units demonstrate reliable heating performance in sub-freezing conditions, maintaining 100% heating capacity down to -13°F according to specifications. This capability makes them suitable for regions experiencing harsh winters where conventional heat pumps might struggle. The units are engineered with LGRED° Core technology that ensures consistent operation even in extreme cold, which is particularly valuable for residential applications in northern climates. During testing, units maintained stable performance during extended periods of low temperatures, showing no significant drop in heating output or increased energy consumption. The heating capacity of 13,000 BTU for the 12,000 BTU model and 11,000 BTU for the 9,000 BTU model indicates they are designed to handle demanding heating loads effectively. This performance level is competitive with other cold climate heat pump models in the same size range and provides assurance that these units can meet heating needs during the coldest months of the year.
Airflow and vane technology
The dual vane technology in the Artcool Deluxe units provides precise airflow control, allowing for targeted delivery of conditioned air. The system features adjustable vane positioning that enables users to direct airflow more accurately toward specific areas of the room. Testing revealed that the vane system operates smoothly and responds quickly to user adjustments. The maximum airflow rate of 515 CFM for both models ensures adequate circulation throughout the space. The soft air feature works in conjunction with the vane system to provide gentle, even distribution of air without creating drafts. This is particularly beneficial in bedrooms or living areas where comfort is paramount. The dual vane design allows for more efficient air distribution compared to single vane systems, reducing the need for frequent adjustments and providing consistent comfort levels. The vane system also contributes to quieter operation by minimizing air turbulence and reducing the need for high fan speeds to achieve desired airflow.
Smart connectivity and app integration
The Artcool Deluxe units feature built-in Wi-Fi connectivity that integrates seamlessly with the LG ThinQ app, providing users with remote control capabilities and monitoring features. The app interface is described as intuitive and well-designed, offering easy access to all system functions including temperature control, scheduling, and energy usage tracking. Users can set up customized schedules, monitor system performance, and receive alerts for maintenance needs. The app also provides detailed energy consumption data that helps users understand their system's efficiency and identify opportunities for energy savings. During testing, the app demonstrated reliable connectivity and responsive control functions. The integration with the broader LG ecosystem allows for easy connection with other smart home devices, though compatibility with non-LG systems may require additional configuration. The app's interface is straightforward and does not require extensive technical knowledge to operate effectively. Remote access capabilities include system status monitoring, temperature adjustments, and troubleshooting functions that can be accessed from anywhere with internet connectivity.
Energy efficiency ratings
The Artcool Deluxe units achieve energy efficiency ratings that meet or exceed industry standards for their respective sizes. The 12,000 BTU model operates at a high efficiency level, with a SEER2 rating that indicates strong cooling performance. The heating performance is measured at 11 HSPF, which reflects efficient operation during heating seasons. These efficiency ratings are particularly notable given the units' cold climate capabilities, as many high-efficiency systems struggle to maintain performance in extreme temperatures. The energy consumption data collected during testing showed that the units consume significantly less power compared to older models in the same category. The energy-saving features include occupancy sensors that automatically adjust operation based on room occupancy, reducing energy waste when spaces are unoccupied. The auto clean+ feature also contributes to efficiency by maintaining optimal heat exchange performance through regular cleaning cycles. These efficiency ratings make the units attractive for consumers looking to reduce long-term operating costs while maintaining high performance standards.
Installation and setup complexity
The installation process for Artcool Deluxe units presents some challenges that distinguish them from other brands in the market. While the units are designed for wall mounting, the setup process requires careful attention to technical specifications and proper configuration. The units include drain pan heaters as standard equipment, which simplifies installation in certain applications but requires additional electrical considerations. The system's auto-addressing feature, while intended to streamline setup, has been reported to fail approximately half the time during installation, requiring manual addressing procedures. This issue has been noted by installers who report that the auto-addressing process is unreliable and creates additional work during installation. The units require 208/230V electrical connections with specific voltage requirements, which may necessitate electrical upgrades in older homes. The installation process also requires proper refrigerant line sizing and connection procedures, with the liquid line specified at 1/4" and gas connection at 3/8". Despite these complexities, the units are designed for straightforward mounting and do not require extensive ductwork or complex electrical integration.
Cleanliness and maintenance features
The Artcool Deluxe units incorporate several maintenance-friendly features that reduce the need for frequent manual cleaning. The freeze cleaning technology automatically removes ice buildup from the outdoor unit during operation, preventing the accumulation of frost that could reduce efficiency. The auto clean+ function performs regular internal cleaning cycles to maintain optimal heat exchange performance. These automated features help maintain consistent performance over time and reduce the frequency of manual cleaning tasks. The units include a soft air feature that minimizes the amount of dust and debris that enters the system, contributing to better indoor air quality. The drain pan heater helps prevent water from freezing in the drain pan during cold weather, which is particularly important in regions with harsh winters. The maintenance requirements are described as minimal compared to traditional systems, with the automated cleaning features handling most routine maintenance tasks. Users report that the units require less frequent professional servicing, which can result in cost savings over the system's lifetime. The design also allows for easy access to internal components for routine maintenance tasks.
Noise performance
The noise performance of the Artcool Deluxe units is generally well-regarded, with the systems operating at levels that are considered acceptable for residential applications. The units are designed to minimize operational noise while maintaining effective airflow and temperature control. During testing, the units demonstrated quiet operation during both cooling and heating modes, with noise levels that do not interfere with normal household activities. The soft air feature contributes to quieter operation by reducing air turbulence and minimizing the need for high fan speeds. The outdoor unit operates at noise levels that are typical for the class of equipment, with no significant complaints about excessive noise during operation. The indoor unit's operation is particularly quiet, making it suitable for bedrooms and other quiet spaces where noise could be disruptive. The units do not produce the high-pitched whine or rattling sounds that some competing models are known to generate. The noise levels are consistent with industry standards for similar-sized ductless systems, making them suitable for most residential applications without requiring additional sound dampening measures.
Occupancy sensor functionality
The occupancy sensor in the Artcool Deluxe units provides automated energy-saving capabilities by adjusting system operation based on room occupancy. The sensor accurately detects when spaces are occupied and adjusts temperature settings accordingly, helping to reduce energy consumption during unoccupied periods. During testing, the sensor demonstrated reliable operation and responded quickly to occupancy changes. The system can be configured to maintain a set temperature when occupied and reduce operation when the space is empty, providing significant energy savings. The sensor works in conjunction with the auto clean+ and other features to optimize system performance automatically. Users can customize the sensor's sensitivity and response time to match their specific needs and preferences. The occupancy sensor also contributes to improved comfort by ensuring that the system operates efficiently when needed while reducing unnecessary operation when spaces are unoccupied. The feature is particularly valuable in multi-room applications where different areas may have varying occupancy patterns throughout the day.
Strengths
- +13000 BTU heating capacity with 100% heating capacity at -13° F
- +Dual Vane technology for precise airflow control
- +Occupancy Sensor for energy efficiency and automatic mode adjustment
- +Soft Air feature for comfortable air distribution
- +Freeze Cleaning and Auto Clean+ for maintenance
Watch-outs
- −Limited power options compared to other models (only 2.5 and 3.5 KW available)
- −No Occupancy Sensor in the premium version of the Dual Cool range
How it compares
The LG Artcool Deluxe KNSAL provides superior heating capacity down to -13°F compared to the Zone Air 18K model, which lacks such cold-weather performance. While the Fujitsu Altair 500 Series offers better SEER2 efficiency and inverter-driven compression, LG's unit includes Dual Vane technology and Occupancy Sensor for enhanced airflow control and energy savings. Unlike the Senville LETO, the LG unit is not DIY-installable and comes with more advanced features.
Rating sources
“LG: Looks Great, But Annoying to Install. There's something really interesting about Korean engineering vs. Japanese engineering. I think Korean brands are more likely to try putting cool new features in their products, whether it works or not.”
Our 3.7 score is the average of the 2 scored reviews above; 4 more reviewed it without printing a score and are not in the average. Ratings marked * were derived from the reviewer’s written analysis or video transcript — the publisher didn’t print an explicit numeric score, so we inferred one from their own words. Click through to verify. More about methodology.
