Mini split inside units offer efficient, versatile, and energy-saving cooling and heating solutions for homes and businesses. Designed to blend seamlessly into interior spaces, these ductless systems deliver year-round comfort without bulky ductwork. Below is a comparison table featuring the top mini split units on Amazon, highlighting key specs like BTU, energy efficiency, and special features to help you find the perfect match for your space.
| Product | BTU Capacity | Energy Efficiency (SEER2) | Heating Function | Coverage Area |
|---|---|---|---|---|
| COSTWAY 12000BTU Mini Split AC & Heater | 12,000 BTU | 20 SEER2 | Yes, Heat Pump | Up to 750 Sq. Ft |
| hykolity Wifi Enabled 18,000 BTU Mini Split AC & Heater | 18,000 BTU | 19 SEER2 | Yes, Heat Pump | Up to 1250 Sq. Ft |
| XQUKEI 2025 New Climafy Mini Wall Mounted Air Conditioner | Not Specified | Not Specified | Cooling Only | Whole House (Variable) |
| Manastin 12000BTU Mini Split AC & Heater with Installation Kit | 12,000 BTU | 19 SEER2 | Yes, Heat Pump | Up to 750 Sq. Ft |
| MilleLoom 9000 BTU Mini Split AC & Heater, Wifi Enabled | 9,000 BTU | 18.5 SEER2 | Yes, Heat Pump | Up to 450 Sq. Ft |
COSTWAY 12000BTU Mini Split AC & Heater
The COSTWAY 12000BTU Mini Split Air Conditioner & Heater is designed for energy-efficient performance with a high-power compressor and innovative inverter technology. Certified by AHRI, this unit cools rooms up to 750 square feet and provides dependable heating via a built-in heat pump. Its inverter adjusts power frequency to reduce compressor cycling, prolonging equipment life and lowering power consumption.
Users can choose from 5 modes including auto, cool, dry, heat, and fan, plus 4 fan speeds. Additional features like sleep mode, ECO mode, iFEEL sensor, and turbo function provide flexible comfort settings. The included remote gives easy control and the low-noise operation favors peaceful nights. The LED display on the remote auto-turns off to avoid sleep disruption.
hykolity Wifi Enabled 18,000 BTU Mini Split AC & Heater
This 18,000 BTU mini split unit from hykolity provides robust cooling and heating with a 1.5-ton heat pump. Rated at 19 SEER2 and 8.5 HSPF2, its variable frequency inverter system enhances energy savings—up to 30%. The automatic defrost function protects the unit and boosts efficiency in cold climates.
The package includes a comprehensive accessory kit: indoor fan coil, outdoor condenser, remote with holder, a 16-foot line set, installation supplies, and vibration absorbers. This feature set ensures simplified installation and reliable operation for rooms up to 1,250 square feet. WiFi capability allows for smart control via mobile devices.
XQUKEI 2025 New Climafy Mini Wall Mounted Air Conditioner
The Climafy 2025 Mini Wall Mounted Air Conditioner is made for users seeking cool, refreshing air throughout their living spaces. It addresses common issues in older ACs like weak airflow, loud noise, and high power consumption by delivering strong cold air silently while saving energy.
This model dynamically adjusts airflow based on room temperature and user habits for a comfortable feel. It is suitable for those prioritizing gentle, effective cooling and occupies less wall space. Exact BTU and energy ratings are not specified, but it aims to replace traditional bulky units with a newer, quieter option.
Manastin 12000BTU Mini Split AC & Heater with Installation Kit
The Manastin Mini Split Air Conditioner offers a balance of performance and eco-friendliness with its 1 ton heat pump and inverter technology. Cooling and heating capacities cover up to 750 square feet, making it an ideal choice for medium rooms.
This unit uses the newer R32 refrigerant to reduce environmental impact and supports multiple modes including Cooling, Heating, Auto, Fan, and Dry. It also features four fan speeds and convenient functions such as Sleep Mode, Eco Mode, and Turbo Boost, enhancing customized comfort. The complete installation kit simplifies setup with professional assistance recommended.
MilleLoom 9000 BTU Mini Split AC & Heater, Wifi Enabled
The MilleLoom 9000 BTU Mini Split offers energy-efficient cooling and heating with a heat pump and inverter compressor covering up to 450 square feet. Rated at 18.5 SEER2, it saves up to 25% energy compared to standard models.
It supports five operating modes, including Cool, Fan, Dry, Heat, and Auto, controlled through a backlit LCD remote. Features such as WiFi connectivity, Google compatibility, self-diagnosis, defrost, iFEEL sensing, and multiple timers increase convenience and ensure optimal air quality with a HEALTH mode filtering dust and PM2.5 particles. This unit operates stably under a wide temperature range from -4°F to 140°F and enhances airflow with 4D circulation.
Buying Guide for Mini Split Inside Units
Choosing the best mini split inside unit depends on several important factors. Consider the following to ensure you select a cooling and heating solution that fits your needs:
- BTU Capacity: Match the unit’s BTU rating to your room size. Underpowered units won’t effectively cool or heat, while oversized models waste energy and create uncomfortable temperature swings. For reference, 12,000 BTU units suit rooms up to 750 sq. ft, while higher BTU models cover larger areas.
- Energy Efficiency: Look for units with high SEER2 (Seasonal Energy Efficiency Ratio) and HSPF2 values for heating performance. Higher ratings mean better energy savings and reduced utility bills.
- Heating Capability: A mini split with a heat pump offers year-round climate control. This is particularly important in colder climates where supplemental heat is needed.
- Installation Kit & Accessories: Comprehensive kits simplify setup with included line sets and mounting hardware. Professional installation is generally recommended to ensure optimal performance and warranty validity.
- Noise Level: Modern units use inverter technology and sound-dampening designs for quiet operation. Check product specs or reviews to confirm noise levels compatible with bedrooms or living spaces.
- Control Features: Remote controls, WiFi connectivity, smart device compatibility, timers, and modes such as ECO, sleep, and turbo make usage convenient and customizable.
- Refrigerant Type: Newer refrigerants like R32 are more environmentally friendly and efficient compared to older types.
- Climate Compatibility: Choose systems with wide operating temperature ranges if you live in areas with extreme seasonal temperatures or require stable performance for winter heating and summer cooling.
- Air Quality Options: Some units include advanced filtration and air purification features, which can be beneficial for allergy sufferers or homes in polluted areas.
Considering these factors will help you invest in a mini split inside unit that delivers reliable, efficient, and comfortable climate control tailored to your living environment.