Choosing the right 12000 BTU mini split air conditioner ensures effective cooling and heating for medium-sized rooms, typically up to 750 square feet. These ductless systems offer energy efficiency, quiet operation, and versatility with multiple functions such as heating, cooling, dehumidifying, and fan modes. Below is a summary table of some top-reviewed mini split AC units that balance performance, energy savings, and smart features.
Product | Brand | Coverage Area (Sq. Ft.) | Energy Efficiency (SEER2) | Heat Pump | Smart Features |
---|---|---|---|---|---|
COSTWAY 12000BTU Mini Split | COSTWAY | Up to 750 | 20 SEER2 | Yes | Remote Control |
Manastin 12000BTU Mini Split | Manastin | Up to 750 | 19 SEER2 | Yes | Complete Installation Kit |
hykolity Wifi Enabled Mini Split | hykolity | Up to 750 | 19 SEER2 | Yes | WiFi Control |
Confortotal 12000 BTU Mini Split | Generic | Up to 550 | Not specified | Yes | WiFi Compatible |
DELLA Vario Series 12000 BTU Mini Split | Della | Up to 550 | 19 SEER2 | Yes | Alexa Compatible |
COSTWAY 12000BTU Mini Split Air Conditioner & Heater

This 12000 BTU mini split AC and heater from COSTWAY features a high power compressor and a 1-ton heat pump for year-round comfort, certified by AHRI. Its inverter technology adjusts power supply frequency, reducing energy consumption and extending the equipment’s lifespan. The unit supports five operating modes: auto, cool, dry, heat, and fan, with four fan speeds including sleep and ECO modes.
Control is convenient with the included remote, featuring a 0.5-24 hour timer and quiet operation for undisturbed sleep. The display screen automatically turns off after 10 seconds to avoid light disturbance.
Manastin 12000BTU Mini Split Air Conditioner & Heater

Manastin’s 12000 BTU mini split combines efficient cooling and heating with advanced inverter technology and a 1-ton heat pump. It covers rooms up to 750 sq. ft and uses eco-friendly R32 refrigerant, making it an environmentally responsible choice. The product supports five versatile modes and four fan speeds to match all comfort needs.
Included is a complete installation kit, and features such as a 24-hour timer, Sleep Mode, Eco Mode, and Turbo Boost enhance user control and energy savings.
hykolity Wifi Enabled 12,000 BTU Mini Split Air Conditioner

This WiFi-enabled 12000 BTU mini split provides both heating and cooling with a 1 ton heat pump and variable frequency technology, promoting up to 30% energy savings. It operates quietly and controls via smartphone or remote, making it highly adaptable for modern homes. The unit covers up to 750 sq. ft and offers multiple modes including eco, turbo, and sleep.
Additional features include 4D airflow, automatic defrost, and smart energy-efficient functions certified by ETL and AHRI.
Confortotal 12000 BTU Mini Split Air Conditioner and Heat Pump

Confortotal’s ductless mini split unit delivers 12000 BTU cooling and heating power with a 1-ton heat pump, ideal for spaces up to 550 sq. ft. Its WiFi compatibility supports control through smart home devices such as Alexa, enhancing convenience. This system is suitable for small to medium-sized rooms requiring efficient temperature management throughout the year.
DELLA Vario Series 12000 BTU Mini Split Air Conditioner

The DELLA Vario Series mini split unit operates with a 19 SEER2 rating and includes a heat pump capable of handling temperatures as low as -4°F. It effectively cools and heats rooms up to 550 sq. ft. This inverter system emphasizes energy efficiency and user-friendly features such as 4D airflow, Turbo mode, and multiple fan speeds. Installation kits are included for easy setup.
It also supports voice control with Alexa integration for smart home convenience and has modes designed to optimize energy savings and quiet operation.
Buying Guide for 12000 BTU Mini Split Air Conditioners
Room Size and Coverage
Choose a mini split AC with an appropriate BTU rating for your room size. A 12000 BTU system typically covers between 500 to 750 sq. ft. Selecting the right size ensures efficient cooling and heating without overworking the unit.
Energy Efficiency (SEER2 Ratings)
Look for systems with high SEER2 ratings. Higher SEER2 means better energy efficiency and lower utility bills. Models with ratings above 19 SEER2 are ideal for reducing power consumption while maintaining performance.
Heating Capability and Heat Pump
Many mini splits include a heat pump for year-round use. Confirm if the unit provides heating and if it functions efficiently in colder temperatures, especially if you live in a region with cold winters.
Installation Requirements
Consider whether the product includes a full installation kit and the ease of installation. Professional installation is often recommended, but a complete kit can simplify the process.
Smart Features and Controls
Remote control, WiFi connectivity, and voice assistant compatibility (Alexa, Google Assistant) enhance user convenience. If remote management or integration with smart homes is important, prioritize models with these capabilities.
Operating Noise Level
For bedrooms or quiet workspaces, select mini splits designed for whisper-quiet operation to avoid disturbances during sleep or tasks.
Refrigerant Type
Eco-friendly refrigerants like R32 are preferable due to their lower environmental impact. Confirm the refrigerant type to ensure compliance with local regulations and green home standards.
Additional Functional Modes
Useful modes include dry (dehumidify), fan-only, sleep, eco, and turbo boost, which increase comfort and system flexibility based on your needs.