Mini split air conditioners offer a flexible, energy-efficient solution for cooling and heating various indoor spaces without the need for ductwork. This article reviews five of the best affordable mini split units available on Amazon, highlighting their features, energy efficiency, and suitability for different room sizes. Below is a summary table for quick comparison.
| Product | BTU Capacity | Energy Efficiency (SEER) | Coverage Area | Special Features |
|---|---|---|---|---|
| ROVSUN 9000 BTU Mini Split | 9000 BTU | 19 SEER2 | Up to 400 sq.ft | Heat pump, ultra-quiet 28dB, WiFi enabled |
| Manastin 12000BTU Mini Split AC & Heater | 12000 BTU | 17 SEER2 | Up to 750 sq.ft | Rapid cooling/heating, multiple modes & fan speeds |
| Manastin 12000BTU Inverter Mini Split | 12000 BTU | 19 SEER2 | Up to 750 sq.ft | Eco-friendly R32 refrigerant, 5 modes, heat pump |
| COSTWAY 12000BTU Blast Series Mini Split | 12000 BTU | 20 SEER2 | Up to 750 sq.ft | 5 modes, sleep/ECO/turbo mode, quiet operation |
| MilleLoom 9000 BTU Mini Split AC & Heat | 9000 BTU | 18.5 SEER2 | Up to 450 sq.ft | WiFi control, 5 modes, all-weather operation |
Content Navigation
- ROVSUN 9000 BTU Wifi Enabled Mini Split Air Conditioner & Heater
- Manastin 12000BTU Mini Split Air Conditioner & Heater
- Manastin 12000BTU Mini Split Air Conditioner & Heater with Inverter
- COSTWAY 12000BTU Mini Split Air Conditioner & Heater (Blast Series)
- MilleLoom 9000 BTU Mini Split Air Conditioner with Wifi Control
- Buying Guide for Cheap Mini Split Air Conditioners
ROVSUN 9000 BTU Wifi Enabled Mini Split Air Conditioner & Heater
The ROVSUN 9000 BTU mini split air conditioner and heater provides powerful cooling and heating suitable for spaces up to 400 square feet. It offers a wide operating temperature range from 61°F to 88°F with effective dehumidification and heat pump functionality, ideal for year-round comfort. Featuring advanced inverter technology with a 19 SEER2 rating, it intelligently adjusts compressor speed to save up to 35% energy, making it an efficient unit. Its ultra-quiet operation at 28 decibels ensures peaceful indoor environments, perfect for bedrooms or offices. The pre-charged condenser and included installation kit simplify setup. WiFi-enabled controls allow remote management for added convenience.
Manastin 12000BTU Mini Split Air Conditioner & Heater
This 12000 BTU Manastin mini split unit is designed for rapid cooling that chills a room in just 30 seconds and heats it within 60 seconds, covering areas up to 750 square feet. Equipped with a 17 SEER2 inverter system and R32 refrigerant, it balances energy efficiency with environmental friendliness. The unit supports multiple modes including Turbo, ECO, Sleep, and Silent mode with four fan speed settings, enabling tailored comfort. The comprehensive installation kit eases setup in medium-sized rooms, suitable for residential or small commercial applications.
Manastin 12000BTU Mini Split Air Conditioner & Heater with Inverter
Manastin’s 12000 BTU inverter mini split system offers both cooling and heating for indoor spaces up to 750 square feet. It features the latest R32 refrigerant, which is eco-friendly and efficient. This unit supports five modes—Cool, Heat, Auto, Fan, and Dry—with four fan speed levels for precise comfort control. Additional functions such as Sleep Mode, ECO Mode, and Turbo Boost enhance usability and energy savings. The complete installation kit makes it straightforward for DIY or professional setup.
COSTWAY 12000BTU Mini Split Air Conditioner & Heater (Blast Series)
The COSTWAY Blast Series is a 20 SEER2 rated 12000 BTU mini split unit offering advanced energy-efficient cooling and heating with a 1-ton heat pump. Suitable for spaces up to 750 square feet, it comes with five operation modes: auto, cool, dry, heat, and fan. The system also includes a low-noise design, sleep/ECO/turbo modes, and a smart timer feature. Its innovative inverter technology reduces power consumption and extends equipment lifespan. The included remote control adds convenience for managing comfort settings.
MilleLoom 9000 BTU Mini Split Air Conditioner with Wifi Control
This 9000 BTU MilleLoom mini split air conditioner features an 18.5 SEER2 rating and covers rooms up to 450 square feet. It supports energy-efficient heating and cooling with five modes including dry, fan, auto, heat, and cool. The unit is WiFi-enabled and Google-compatible, allowing for remote control via smartphone or voice assistants. Its design supports operation in diverse environments, functioning reliably in temperatures from -4°F to 140°F with low noise. The included installation kit and remote control provide ease of use and flexibility.
Buying Guide for Cheap Mini Split Air Conditioners
When shopping for a cheap mini split air conditioner, consider the following key factors to ensure you get a unit that balances cost with performance and energy efficiency.
Cooling and Heating Capacity
Choose a unit with the correct BTU rating for the size of your room. Underpowered units will struggle to maintain comfortable temperatures, while oversized units can waste energy. For example, 9000 BTUs generally suit rooms up to 400-450 sq.ft, while 12000 BTUs can comfortably cool or heat spaces up to 750 sq.ft.
Energy Efficiency (SEER Rating)
The Seasonal Energy Efficiency Ratio (SEER) indicates how efficiently the unit operates. Higher SEER ratings translate to lower electricity bills. Look for units with SEER ratings above 15 for good efficiency. Many affordable mini splits now offer SEER 17-20 or higher with inverter technology.
Inverter Technology
Inverter compressors adjust their speed based on cooling or heating demand, avoiding frequent on-off cycling. This improves energy savings, extends the compressor life, and provides more stable room temperature control, features often available in models costing slightly more but worth the investment.
Installation and Included Kits
Installation can be a challenge for mini split systems. Many affordable options come with complete installation kits including mounting brackets, copper tubing, insulation, and wiring. Ensure your chosen product’s kit matches the complexity you can manage or be prepared to hire a professional.
Noise Level
Quiet operation is important, especially for bedrooms or offices. Look for units with noise levels below 30 decibels (dB) for indoor units. Many models feature ultra-quiet modes for nighttime use.
Smart Controls and Additional Features
WiFi connectivity, smartphone apps, and voice assistant compatibility add convenience for remote control and scheduling. Other useful features include multiple fan speeds, timers, sleep mode for quieter operation, and energy-saving modes.
Environmental Considerations
Refrigerants like R32 are more eco-friendly than older types such as R410A. Choosing units with R32 refrigerant helps reduce the environmental impact of your cooling system.