Choosing the best large mini split system is essential for maintaining comfort in spacious rooms while ensuring energy efficiency and quiet operation. Below is a summary table of top-rated ductless mini split systems ideal for large areas, featuring trusted brands and versatile functionalities including DIY installation, smart controls, and heat pump technology.
| Product | BTU Capacity | Coverage Area | Key Features |
|---|---|---|---|
| MRCOOL Easy Pro 18,000 BTU | 18,000 BTU | Up to 800 sq. ft. | DIY Installation, Smart WiFi Control, Quiet Operation |
| YITAHOME 18000 BTU Mini Split | 18,000 BTU | Up to 1250 sq. ft. | WiFi Enabled, Alexa Compatible, Multiple Modes, Energy Efficient |
| DELLA Vario Series 18000 BTU | 18,000 BTU | Up to 1000 sq. ft. | 19 SEER2, Alexa Compatibility, Pre-Charged Installation Kit |
| MrCool Easy Pro 24k BTU | 24,000 BTU | Up to 1200 sq. ft. | High SEER2 Rating, Durable Heat Pump, DIY Friendly |
| COSTWAY 12000BTU Mini Split | 12,000 BTU | Up to 750 sq. ft. | Energy Efficient, 5 Modes, Remote Control, Quiet Operation |
Content Navigation
- MRCOOL Easy Pro 18,000 BTU Ductless Mini-Split System
- YITAHOME 18000 BTU Mini Split Heat Pump with WiFi
- DELLA Vario Series 18000 BTU Wifi Mini Split AC with Heat Pump
- MrCool Easy Pro 24k BTU Ductless Heat Pump Mini Split
- COSTWAY 12000BTU Mini Split Air Conditioner and Heater
- Buying Guide for Large Mini Split Systems
MRCOOL Easy Pro 18,000 BTU Ductless Mini-Split System
The MRCOOL Easy Pro 18,000 BTU is designed for efficient temperature control in rooms up to 800 square feet. This ductless mini split incorporates a heat pump for both heating and cooling, operating quietly to maintain comfort without excess noise.
Key features include streamlined DIY installation, reducing setup time and expense. The system runs quietly and efficiently thanks to inverter technology, keeping energy use low while ensuring steady climate control for year-round use. It operates on a 230-volt power supply for optimal performance.
YITAHOME 18000 BTU Mini Split Heat Pump with WiFi
This YITAHOME 18,000 BTU system covers a large area up to 1250 square feet and features advanced inverter compressor technology boosting energy efficiency by up to 25%. It is compatible with Alexa and includes WiFi control, enabling smart home integration for convenient operation from anywhere.
The unit supports five modes: auto, cool, dry, heat, and fan. Additional functions such as automatic defrosting, self-diagnosis, and air quality improvement through “HEALTH” mode make it highly versatile. Noise levels remain under 47 decibels ensuring peaceful environment.
DELLA Vario Series 18000 BTU Wifi Mini Split AC with Heat Pump
The DELLA Vario Series 18,000 BTU mini split offers energy-efficient heating and cooling with a 19 SEER2 rating, capable of servicing up to 1000 sq. ft.. It works effectively in temperatures as low as -4°F, perfect for colder climates.
This system combines DC inverter technology with a heat pump, contributing to up to 30% power savings. It comes with a full pre-charged installation kit and supports features such as 4D airflow, sleep mode, turbo function, and multiple fan speeds to tailor comfort to different needs.
MrCool Easy Pro 24k BTU Ductless Heat Pump Mini Split
The MrCool Easy Pro 24,000 BTU system is ideal for larger spaces up to 1200 square feet. Rated between 18.9 and 20.2 SEER2 for energy efficiency, it combines cooling and heating with an impressive 11.2 HSPF2 heat pump rating for year-round comfort.
Durability is enhanced with a Gold Fin condenser coating that guards against corrosion. This system suits areas like game rooms and sunrooms and supports DIY installation, making it flexible for various home setups.
COSTWAY 12000BTU Mini Split Air Conditioner and Heater
The COSTWAY 12,000 BTU model is an AHRI certified energy-efficient system with inverter technology designed for rooms up to 750 square feet. It functions in five modes—auto, cool, dry, heat, and fan—and features four fan speed options.
Remote control convenience, low-noise operation, and timer functions contribute to ease of use and peaceful sleeping environments. Its inverter compressor reduces power consumption and prolongs equipment life.
Buying Guide for Large Mini Split Systems
When selecting a large mini split system, consider the following factors to ensure you get the right unit for your space and needs:
BTU Capacity and Coverage Area
Match the BTU rating with your room size. Typically, 18,000 BTU systems cover around 800–1250 sq. ft. Larger rooms may require systems with 24,000 BTU or higher for optimal performance.
Energy Efficiency Ratings
Look for units with high SEER (Seasonal Energy Efficiency Ratio) and HSPF (Heating Seasonal Performance Factor) ratings to save on electricity bills. Modern systems with 17+ SEER or 18+ SEER are more energy efficient.
Installation Type
DIY-friendly models can reduce installation costs if you have experience, while professional installation may be needed for complex setups. Pre-charged systems with installation kits simplify mounting.
Smart Features and Controls
WiFi and smart home compatibility (Alexa, Google Assistant) allow remote operation and scheduling. Features like sleep mode, timers, and automatic defrost enhance convenience and comfort.
Noise Levels
Quiet operation is important for bedrooms and living spaces. Look for units with decibel ratings under 50 dB for a peaceful environment.
Heat Pump Efficiency
Heat pump functionality enables year-round heating and cooling with efficiency. Check the minimum operating temperature and HSPF rating for cold climate suitability.
Warranty and Durability
A reliable warranty and protective coatings, such as Gold Fin condensers against corrosion, improve unit longevity and peace of mind.
Refrigerant Type
Systems using eco-friendly refrigerants like R32 reduce environmental impact and often improve efficiency compared to older refrigerants.
Careful consideration of these criteria will help you choose a large mini split system that balances comfort, efficiency, and ease of use tailored to your specific space and climate requirements.