Choosing the right mini split AC and heater combo can transform your home’s climate control, providing efficient cooling in summer and reliable heating in winter. This article reviews the top mini split systems available on Amazon, each excelling in energy efficiency, quiet operation, and smart features suitable for spaces up to 750 square feet. Below is a summary table of the recommended models for easy comparison.
Product | BTU | Energy Efficiency (SEER2) | Coverage (Sq.Ft.) | Special Features |
---|---|---|---|---|
COSTWAY 12000BTU Mini Split AC & Heater | 12,000 | 20 SEER2 | 750 | Inverter compressor, 5 operational modes, quiet operation |
Hykolity Wifi Enabled 12,000 BTU Mini Split AC & Heater | 12,000 | 19 SEER2 | 750 | WiFi control, turbo function, whisper-quiet, energy-saving |
ROVSUN 11500 BTU Wifi Mini Split AC & Heater | 11,500 | 17 SEER2 | 750 | Automatic defrost, voice control, eco mode |
MRCOOL Easy Pro 18,000 BTU Mini-Split AC & Heat Pump | 18,000 | N/A | 800 | DIY installation, quiet operation, efficient performance |
Confortotal 12000 BTU Mini Split AC & Heat Pump with Wifi | 12,000 | N/A | 550 | WiFi enabled, Alexa compatible |
COSTWAY 12000BTU Mini Split Air Conditioner & Heater

The COSTWAY 12000BTU Mini Split AC & Heater offers an all-in-one solution for year-round climate control. With a high power compressor and 1 ton heat pump, this AHRI Certified pre-charged unit efficiently cools or heats rooms up to 750 square feet. Featuring advanced inverter technology, it adjusts the power supply frequency to avoid frequent compressor cycling, reducing energy consumption and extending equipment life.
The unit supports five modes: auto, cool, dry, heat, and fan, along with four fan speeds and several additional settings including sleep, ECO, iFEEL, and turbo functions, ensuring tailored comfort. The convenient remote control has a smart timer and low noise operation for peaceful nights. Its display screen automatically turns off after inactivity, minimizing distractions.
Hykolity Wifi Enabled 12,000 BTU Mini Split AC & Heater

The Hykolity 12,000 BTU Mini Split integrates energy-efficient cooling and heating with smart WiFi connectivity, fitting rooms up to 750 square feet. Its high-power compressor and built-in heat pump operate quietly, delivering reliable temperatures between 61℉ and 88℉. Certified with 19 SEER2 and 8.5 HSPF2 ratings, this model achieves about 30% savings on energy bills.
Customization is enhanced by features like 4D airflow, I Feel mode, and multiple fan speeds. It supports eco-friendly operation modes and an auto defrost function, prolonging system lifespan. Users can control it remotely via mobile app or voice assistants, adding convenience and real-time adjustments.
ROVSUN 11500 BTU Wifi Enabled Mini Split AC & Heater

The ROVSUN 11500 BTU Mini Split serves as a comprehensive four-season climate solution with air conditioning, heating, dehumidifying, and fan functions. Equipped with a heat pump and advanced inverter, it delivers an impressive 17 SEER2 efficiency rating, saving about 25% energy compared to lower SEER units.
This system supports automated defrosting, self-diagnosis, and a 24-hour timer. It provides voice control compatibility through Alexa or Google Assistant and includes a user-friendly mobile app. Eco mode and sleep mode enhance comfort and energy savings, ideal for maintaining optimal indoor climate through varying conditions.
MRCOOL Easy Pro 18,000 BTU Ductless Mini-Split AC & Heater

The MRCOOL Easy Pro 18,000 BTU is designed to heat and cool spaces up to 800 square feet with strong performance and quiet operation. Its 230-volt power and ductless design make it an ideal choice for residential or small commercial environments.
This fifth-generation model emphasizes easy DIY installation, reducing setup time and cost. The inverter technology ensures efficient energy use, maintaining comfort without excessive noise, making it suitable for bedrooms or offices. The higher BTU capacity suits larger rooms needing robust temperature management.
Confortotal 12000 BTU Mini Split AC & Heat Pump with Wifi

The Confortotal 12000 BTU Mini Split combines ductless cooling and heating with smart WiFi compatibility, supporting room sizes up to 550 square feet. Its 1-ton heat pump efficiently manages indoor climate year-round with the convenience of Alexa integration for voice-activated control.
This unit is suitable for smaller spaces or rooms where precise, quiet operation is desired. The ductless system aids fast temperature regulation while avoiding intrusive noise, making it practical for bedrooms or home offices requiring consistent comfort.
Buying Guide: Key Considerations for Choosing Mini Split AC & Heat Combos
Cooling and Heating Capacity (BTU)
The BTU rating determines the space a mini split system can efficiently cool or heat. Choose a BTU size that matches your room square footage for optimal performance—approximately 12,000 BTU for spaces up to 750 sq.ft., and higher for larger areas. Oversized units cycle unnecessarily, while undersized units struggle to maintain temperature.
Energy Efficiency Ratings
Look for units with high SEER2 and HSPF ratings to minimize electricity use. Models rated 17 SEER2 or above provide significant energy savings, reducing operation costs over time. Inverter technology is a critical feature that improves efficiency by adjusting compressor speed dynamically.
Installation and Kits
Some mini splits come with complete installation kits, including copper lines and communication wires, which streamline setup. Options like the MRCOOL Easy Pro encourage DIY installation, while others may require professional help to ensure warranty compliance and system longevity.
Smart Features & Remote Control
WiFi connectivity, app control, and voice assistant compatibility (Alexa, Google) add convenience for modern users. These features allow scheduling, temperature setting, and operational mode changes remotely. Also consider units with quiet operation modes for minimal noise disturbance.
Operational Modes and Comfort Settings
Multipurpose modes such as auto, heat, cool, dry, fan, and eco optimize comfort in various conditions. Sleep mode ensures quieter operation and consistent temperatures for better rest. Additional modes like turbo or iFEEL provide rapid response and personalized comfort.
Environmental Impact
Choose models using eco-friendly refrigerants like R32, which have lower global warming potential compared to older refrigerants. Certifications such as AHRI and ETL also demonstrate adherence to safety and performance standards.
Warranty and Customer Support
Reliable warranty coverage and accessible customer service ensure peace of mind. Check for the availability of extended warranties, part replacements, and responsive manufacturer support when selecting your mini split system.