Finding the best mini split AC for apartments ensures year-round comfort in limited spaces without the need for bulky ductwork. These systems provide energy-efficient cooling and heating with convenient features perfect for apartment living. Below is a summary table of the top mini split units designed for apartments, highlighting their key capacities and special attributes.
Product | BTU Capacity | Coverage Area | Modes | Energy Efficiency |
---|---|---|---|---|
Mountman 12000 BTU Mini Split | 12000 | Up to 750 Sq.Ft | Cool, Heat, Dry, Fan | 19 SEER2 |
ROVSUN 9000 BTU Wifi Enabled Mini Split | 9000 | Up to 400 Sq.Ft | Cool, Heat, Dehumidify, Fan | 19 SEER2 |
COSTWAY 12000 BTU Mini Split | 12000 | Up to 750 Sq.Ft | Auto, Cool, Dry, Heat, Fan | 20 SEER2 |
DELLA Motto Series Mini Split | 12000 | Up to 550 Sq.Ft | Cool, Heat | 17.5 SEER2 |
MRCOOL 18000 BTU Easy Pro Series | 18000 | Up to 800 Sq.Ft | Cool, Heat | Inverter Technology |
Mountman 12000 BTU Mini Split AC/Heating System

The Mountman 12000 BTU Mini Split brings versatile functionalities with its 4 flexible modes — cooling, heating, drying, and fan — suited for all seasons. Offering 4 fan speeds including a quiet sleep mode at just 26dB, it ensures silent comfort without disturbance. Its energy-saving ECO mode can reduce consumption by up to 30%, paired with a Turbo Boost for fast climate adjustments. Intelligent self-cleaning technology eliminates mold and odors while washable filters preserve air quality. The pre-charged condenser and heat pump enable efficient operation up to 750 square feet. Remote control and a 24-hour timer add convenience suitable for apartment living.
ROVSUN 9000 BTU Wifi Enabled Mini Split AC & Heater

This compact ROVSUN 9000 BTU mini split is ideal for smaller spaces up to 400 sq.ft. Its heat pump function effectively handles both heating and cooling, augmented by a dehumidification mode. The inverter technology results in at least 35% energy savings by adjusting compressor speed intelligently depending on room conditions. Running ultra-quiet at 28dB in mute mode, it integrates Wifi smart control for convenience. This makes it a perfect option for bedrooms, offices, or apartments requiring quiet and efficient cooling and heating.
COSTWAY 12000BTU Mini Split Air Conditioner & Heater

The COSTWAY 12000BTU Mini Split features a 1-ton heat pump with innovative inverter technology for efficient power usage and prolonged equipment life. Covering up to 750 sq.ft, this unit offers 5 operation modes including auto, cool, dry, heat, and fan with 4 adjustable fan speeds. Its smart remote provides a sleep mode, ECO function, turbo boost, and a display that dims after inactivity to avoid disrupting rest. This combination of features fosters all-year comfort with convenience for apartment dwellers.
DELLA Motto Series Mini Split AC with Alexa and Wifi

The DELLA Motto Series 12000 BTU unit is designed for quiet and efficient operation, delivering cooling and heating up to 550 sq.ft. It supports smart home integration with Alexa and Wifi for hands-free control. Filled with environmentally-friendly R32 refrigerant, it offers adjustable airflow and temperature sensing via its remote control, ensuring precise comfort. Professional installation is required, ideal for those seeking a tech-savvy option in apartment HVAC solutions.
MRCOOL 18000 BTU Ductless Inverter Mini Split AC & Heat Pump

The MRCOOL 18000 BTU Easy Pro Series mini split offers powerful coverage of up to 800 sq.ft, ideal for larger apartments or small offices. This ductless system combines both heating and cooling in one versatile unit, using inverter technology for improved energy efficiency. Its DIY installation setup suits homeowners comfortable with moderate technical tasks, providing a complete HVAC solution for year-round comfort without ducts.
Buying Guide for Mini Split ACs in Apartments
Choosing the right mini split air conditioner for your apartment involves several essential considerations to ensure optimal comfort, energy efficiency, and value.
Cooling and Heating Capacity
Assess the square footage of the area to be cooled or heated. Common mini split capacities range from 9000 to 18000 BTUs, typically covering from 400 up to 1250 square feet. Select an AC unit that matches your apartment’s size to avoid under or oversizing, which can affect performance and energy use.
Energy Efficiency Ratings
Look for SEER (Seasonal Energy Efficiency Ratio) or SEER2 ratings to understand efficiency; higher ratings mean lower energy costs. Many modern mini splits feature inverter compressors that adjust motor speed for steady temperatures, improving efficiency and reducing wear.
Installation Requirements
Some mini splits require professional installation due to refrigerant handling and electrical connections, while other models offer DIY-friendly kits. Confirm installation complexity and factor in potential professional fees if your system is not DIY compatible.
Noise Levels
Especially in apartments, ultra-quiet operation is valuable. Many units advertise noise levels between 26dB and 41dB. Sleep modes and mute functions further reduce sounds during nighttime use.
Control Features
Remote controls, timer functions, sleep modes, and smart home compatibility (WiFi, Alexa) add convenience. Consider which features align with your lifestyle and ease of use preferences.
Air Quality and Maintenance
Check for washable filters, auto-clean functions, and mold prevention features to maintain air quality and reduce upkeep. Easy maintenance prolongs unit life and saves time.
Environmental Considerations
Some models use modern eco-friendly refrigerants like R32 with lower global warming potential. Choosing units with such refrigerants can reduce environmental impact.