Mini split heat and air systems offer a versatile and energy-efficient solution for heating and cooling your home. Ideal for rooms without existing ductwork, these ductless systems provide precise temperature control and quiet operation. Below is a summary table of selected mini split systems featured in this article to help you compare their key specifications at a glance.
Product | BTU | Coverage Area | Energy Efficiency (SEER) | Special Features |
---|---|---|---|---|
COSTWAY 12000BTU Mini Split AC & Heater | 12,000 BTU | Up to 750 sq. ft. | 20 SEER2 | 5 modes, inverter tech, quiet operation |
ROVSUN 9000 BTU Wifi Mini Split | 9,000 BTU | Up to 400 sq. ft. | 19 SEER2 | WiFi enabled, ultra-quiet, inverter tech |
hykolity 12,000 BTU Mini Split WiFi AC & Heater | 12,000 BTU | Up to 750 sq. ft. | 19 SEER2 | WiFi control, multiple modes, energy saving |
MRCOOL Easy Pro 18,000 BTU Mini-Split | 18,000 BTU | Up to 800 sq. ft. | Not specified | DIY installation, smart WiFi, quiet operation |
Manastin 12000BTU Mini Split AC & Heater | 12,000 BTU | Up to 750 sq. ft. | 17 SEER2 | Fast cooling, inverter tech, multiple modes |
COSTWAY 12000BTU Mini Split Air Conditioner & Heater

The COSTWAY 12000BTU Mini Split Air Conditioner and Heater provides efficient heating and cooling with a high-power compressor and a 1-ton heat pump, suitable for rooms up to 750 sq. ft. It is AHRI Certified and uses innovative inverter technology to reduce power consumption while extending equipment lifespan. The system includes five operating modes—auto, cool, dry, heat, and fan—alongside four fan speeds to fit various comfort preferences. Features such as sleep mode, ECO mode, turbo function, and iFEEL sensor enhance user experience. The remote control offers convenient operation with a smart timer and quiet operation to ensure peaceful environments.
ROVSUN 9000 BTU Wifi Enabled Mini Split AC & Heater

The ROVSUN 9000 BTU Wifi Enabled Mini Split offers rapid year-round heating and cooling for spaces up to 400 sq. ft. Equipped with advanced inverter technology, this unit achieves a 19 SEER2 rating with intelligent frequency adjustment, saving up to 35% energy. The heat pump delivers effective dehumidification and wide temperature control between 61°F and 88°F. Designed for whisper-quiet operation at 28 dB in mute mode, it ensures an undisturbed environment with uniform air distribution, perfect for bedrooms and offices. WiFi capability adds smart control convenience.
hykolity Wifi Enabled 12,000 BTU Mini Split Air Conditioner & Heater

The hykolity 12,000 BTU Mini Split features a high-power compressor coupled with a 1-ton built-in heat pump. This system efficiently cools or heats areas up to 750 sq. ft. and offers a wide temperature range from 61°F to 88°F. Users can enjoy WiFi control along with whisper-quiet operation, multiple fan speeds, and 4D airflow options. Its highly energy-efficient design with 19 SEER2 rating and automatic defrost enhances performance while reducing energy consumption. Multiple modes including sleep, eco, turbo, and auto ensure versatility for any environment.
MRCOOL Easy Pro 18,000 BTU Ductless Mini-Split

The MRCOOL Easy Pro 18,000 BTU Mini-Split is engineered for larger areas up to 800 sq. ft., offering reliable heating and cooling with energy-efficient inverter technology. It supports DIY installation, reducing installation time and costs. This system maintains exceptionally low noise levels, providing comfortable and quiet performance. The smart WiFi control allows temperature adjustments remotely, giving users flexibility and convenience. Its powerful output suits both residential and light commercial spaces.
Manastin 12000BTU Mini Split Air Conditioner & Heater

The Manastin 12000BTU Mini Split delivers fast cooling within 30 seconds and heating within 60 seconds, ideal for quick comfort in medium-sized rooms up to 750 sq. ft. Equipped with a 17 SEER2 inverter system and utilizing eco-friendly R32 refrigerant, this model balances energy efficiency and environmental consciousness. Its versatility shines through five operating modes and four adjustable fan speeds. Additional features include a 24-hour timer, turbo mode for rapid climate adjustments, eco mode for saving energy, and silent mode for noise-sensitive areas.
Buying Guide for Mini Split Heat and Air Systems
BTU Capacity and Room Size
Choosing the correct BTU rating based on your room size is essential. A unit with too low capacity won’t cool or heat effectively, while an oversized unit may cycle frequently, wasting energy. Mini split systems ranging from 9,000 to 18,000 BTU cover small to larger rooms typically from 400 to 1,000 sq. ft.
Energy Efficiency Ratings
Look for the Seasonal Energy Efficiency Ratio (SEER) rating, which indicates cooling efficiency. Higher SEER ratings (above 17) mean better energy savings. Many units also utilize inverter technology to optimize compressor speed and reduce electrical consumption.
Heating Capability
If you need a heating function, ensure the mini split includes a built-in heat pump. Verify the heating range to suit your climate, and consider models with defrost capability for winter operation.
Sound Levels
Quiet operation is important, especially in bedrooms and offices. Units operating below 40 dB are considered whisper-quiet. Features like vibration damping and sound insulation improve comfort.
Control Features
Remote controls and WiFi connectivity allow convenient operation. Compatibility with smart home assistants (Alexa, Google Assistant) adds ease. Advanced modes such as sleep, turbo, eco, and timers help customize comfort while saving energy.
Installation and Kit Inclusion
Many mini splits come with complete installation kits including copper tubing, drain pipes, and fittings. Some models promote DIY-friendly installation, reducing professional service costs. Verify voltage requirements (115V or 208-230V) to match your home electrical system.
Environmental Considerations
Choose units using R32 refrigerant, which has a lower environmental impact than older refrigerants. AHRI or ETL certifications ensure products meet safety and performance standards.