Mini split AC systems provide a versatile, energy-efficient way to cool or heat your home without the need for extensive ductwork. Whether you want to upgrade your current setup or install a new system, choosing the right unit depends on coverage area, energy efficiency, noise level, and control options. Below is a summary of top mini split air conditioner and heater systems available on Amazon, featuring a range of BTU ratings and smart features for all-year comfort.
| Product | Brand | BTU | Coverage Area | Energy Efficiency (SEER2) |
|---|---|---|---|---|
| COSTWAY 12000BTU Mini Split AC & Heater | COSTWAY | 12,000 | Up to 750 sq. ft. | 20 SEER2 |
| DELLA Vario Series 18000 BTU Wifi Mini Split | Della | 18,000 | Up to 1000 sq. ft. | 19 SEER2 |
| ROVSUN 9000 BTU Wifi Enabled Mini Split AC | ROVSUN | 9,000 | Up to 400 sq. ft. | 19 SEER2 |
| MRCOOL Easy Pro 18,000 BTU Ductless Mini-Split | MRCOOL COMFORT MADE SIMPLE | 18,000 | Up to 800 sq. ft. | Not Specified |
| Manastin 12000BTU Mini Split AC & Heater | Manastin | 12,000 | Up to 750 sq. ft. | 17 SEER2 |
COSTWAY 12000BTU Mini Split AC & Heater
This 12000 BTU COSTWAY mini split air conditioner offers both cooling and heating capabilities with high energy efficiency. Featuring a high-power compressor and 1 ton heat pump, it provides year-round comfort without the energy spikes common in traditional systems. The inverter technology adjusts power frequency smoothly, reducing power consumption and prolonging equipment life.
The unit includes five modes (auto, cool, dry, heat, and fan), plus four fan speeds for customizable comfort. Convenience is enhanced with a remote control, smart timer (0.5-24 hour), and quiet operation modes for peaceful sleep environments. The display automatically dims after 10 seconds of inactivity to avoid distractions at night.
DELLA Vario Series 18000 BTU Wifi Mini Split AC
The DELLA Vario 18000 BTU mini split is ideal for large rooms up to 1000 sq. ft., blending WiFi integration with Alexa compatibility for smart home control. This ETL-listed, AHRI-certified unit features a robust inverter heat pump that operates efficiently even in extreme cold conditions (down to -4°F).
Energy saving is highlighted by its 19 SEER2 rating and DC Inverter technology, capable of reducing power use by up to 30%. The full installation kit is included, simplifying setup. Its intelligent airflow system offers 4D control, while functions like eco mode, turbo, and I feel mode provide flexible comfort options.
ROVSUN 9000 BTU Wifi Enabled Mini Split AC & Heater
The ROVSUN 9000 BTU mini split is designed for smaller rooms, up to 400 sq. ft., combining efficient cooling and heating with a heat pump system and a 19 SEER2 energy rating. Its inverter technology automatically adjusts compressor speed to save up to 35% energy based on indoor temperature.
Thanks to whisper-quiet operation at just 28 dB, it’s suitable for bedrooms and offices. The unit efficiently handles rapid temperature adjustments and provides effective dehumidification, making it a versatile solution for many residential and light commercial spaces.
MRCOOL Easy Pro 18,000 BTU Ductless Mini-Split
The MRCOOL Easy Pro 18,000 BTU ductless mini-split system is engineered for installation ease and performance. It covers spaces up to 800 sq. ft. with reliable cooling and heating capacity. The DIY-friendly design cuts installation time and expense significantly.
With quiet operation and efficient energy use, this system is suited to maintain comfortable indoor climates without excessive noise or high operational costs. Its smart WiFi control adds convenience for remote adjustments and programming.
Manastin 12000BTU Mini Split AC & Heater
The Manastin 12000BTU mini split air conditioner offers fast temperature adjustments cooling a space up to 750 sq. ft. within 30 seconds and heating within 60 seconds. It operates with an advanced inverter technology delivering a 17 SEER2 rating and uses environmentally friendly R32 refrigerant.
This unit comes with multiple modes including cooling, heating, auto, fan, and dry, plus four fan speeds. Additional features like a 24-hour timer, turbo mode, ECO operation, sleep mode, and silent performance enhance its adaptability to various comfort needs.
Buying Guide for Mini Split AC Systems
Cooling and Heating Capacity (BTU)
Choose a mini split system with a BTU rating matching your room’s size. Underpowered units struggle to maintain comfort, while oversized units can waste energy. For example, units with 9000–12000 BTU typically cover 400–750 sq. ft., while 18,000 BTU models handle up to 1000+ sq. ft.
Energy Efficiency Ratings (SEER2 and HSPF)
Higher SEER2 ratings indicate better cooling efficiency, reducing electricity consumption. Look for units with 17 SEER2 or above for optimal energy savings. Additionally, heat pump systems with good HSPF ratings improve heating efficiency during cold months.
Installation and Kit Inclusion
Check if the mini split AC comes with a complete installation kit including copper piping, drain hose, and mounting brackets. DIY-friendly models save installation costs. Verify voltage compatibility (115V vs 208-230V) depending on your home’s electrical setup.
Smart Controls and Features
WiFi-enabled units with remote control and compatibility with voice assistants like Alexa offer convenience and precise climate management. Features like sleep mode, turbo mode, eco mode, timers, and multiple fan speed settings add comfort customization.
Noise Level and Operation
Quieter AC units (below 45 dB) provide better comfort in bedrooms or office spaces. Look for inverter technology that reduces compressor cycling noise and supports gentle airflow for a peaceful environment.
Environmental Considerations
Choose systems that use eco-friendly refrigerants such as R32 or R410A. These reduce greenhouse gas emissions and improve efficiency compared to older refrigerants. Certifications from AHRI and ETL ensure product reliability and safety.