Single room mini split systems provide an excellent solution for targeted heating and cooling, offering energy-efficient comfort without ductwork. Whether you need to cool a bedroom, office, or small living space, these ductless mini splits come equipped with inverter technology, quiet operation, and versatile features. Below is a summary table of the best single room mini splits available, followed by detailed reviews to help you choose the right unit for your needs.
Product | BTU Capacity | SEER2 Rating | Voltage | Heating Capability | Installation Kit |
---|---|---|---|---|---|
Cooper & Hunter 36,000 BTU Wall Mount Mini Split | 36,000 | 18 SEER2 | 230V | Heat up to 5°F ambient | Includes 16ft Kit |
Cooper & Hunter 6,000 BTU Mia Series Mini Split | 6,000 | 21.5 SEER2 | 115V | Heat up to 5°F ambient | Includes 16ft Kit |
TMYICE 18,000 BTU Inverter Mini Split AC/Heat Pump | 18,000 | 19 SEER2 | 230V | Heating and cooling with R32 refrigerant | Includes Installation Kit |
OLMO 9,000 BTU Wall Mount Mini Split Air Conditioner & Heat Pump | 9,000 | 16.5 SEER | 115V | Heat up to 5°F ambient | Includes 16ft Kit |
Cooper & Hunter 12,000 BTU Olivia Midnight Edition Mini Split | 12,000 | 22.7 SEER | 115V | Heat down to -13°F ambient | Includes 16ft Kit |
Cooper & Hunter 36,000 BTU 230V Single Zone Mini Split

The Cooper & Hunter 36,000 BTU single zone mini split is a powerful and efficient option for cooling and heating larger single rooms or small open spaces. It operates on 230V and delivers 18 SEER2 efficiency, ensuring energy savings. The unit includes a wall mount air handler, supports heating down to 5°F, and uses environmentally friendly R-410A refrigerant pre-charged for easy setup.
This model features Whisper Technology for quiet operation, making it suitable for bedrooms and commercial spaces. The included smart port adapter enables smartphone control through a dedicated app, allowing you to turn the unit on/off, adjust temperature, switch modes, and control fan speed remotely. The 16-foot installation kit provides all necessary components for professional installation, though DIY is not recommended.
Cooper & Hunter 6,000 BTU 115V Single Zone Mini Split – Mia Series

This compact Cooper & Hunter Mia Series mini split runs on 115V, making it ideal for smaller spaces like bedrooms or offices. Rated at 21.5 SEER2, it offers an efficient cooling capacity of 6,000 BTU along with heat pump functionality for colder months. The unit is UL listed and AHRI certified, meeting strict safety and performance standards.
It also comes pre-charged with R-410A refrigerant and includes a 16-foot installation kit with pre-flared and insulated copper lines. The built-in smart port adapter allows easy smartphone and remote control operation, supporting temperature adjustments and mode switching. This unit maintains performance in temperatures as low as 5°F.
TMYICE 18,000 BTU Mini Split AC and Heating System

The TMYICE 18,000 BTU mini split offers a versatile 4-in-1 system providing cooling, heating, dry, and fan modes for all-season comfort. It features advanced inverter technology and uses eco-friendly R32 refrigerant to cool spaces up to 1,250 square feet efficiently. With a 19 SEER2 rating, it balances performance and energy savings.
This system includes a smart remote control with a timer function and has a quiet operation at just 25 dB, ideal for bedrooms or living areas. The installation kit, completed with a pre-charged condenser and important accessories, supports professional setup for optimal performance.
OLMO 9,000 BTU 115V Single Zone Wall Mount Mini Split

The OLMO 9,000 BTU mini split system delivers efficient cooling and heating for compact rooms. Running on 115V and offering 16.5 SEER efficiency, it uses inverter technology to optimize energy use and comfort. The system heats effectively in ambient temperatures as low as 5°F, making it versatile for various climates.
This UL listed and AHRI certified unit comes pre-charged with R-410A refrigerant and a full 16ft installation kit. Whisper Technology ensures quiet operation, making it suitable for bedrooms or office environments. Professional installation is required for proper setup.
Cooper & Hunter 12,000 BTU Olivia Midnight Edition Mini Split

The Olivia Midnight Edition from Cooper & Hunter is a stylish and highly efficient ductless mini split offering 12,000 BTU cooling and heating with a remarkable 22.7 SEER rating. Its sleek black mirrored finish integrates well with modern interiors, providing comfort without sacrificing aesthetics.
This 115V unit supports heating at ambient temperatures down to -13°F, making it suitable even for colder climates. Equipped with Whisper Technology, it operates quietly and includes a smart port for mobile app control. The complete 16ft installation kit includes pre-charged refrigerant and accessories for professional setup.
Buying Guide for Single Room Mini Split Systems
Choosing the right single room mini split depends on several key factors to ensure optimal comfort and energy efficiency:
BTU Capacity and Room Size
Select a unit with BTU capacity appropriate for your room size. For instance, smaller rooms up to 300 sq. ft. are well served by 6,000 to 9,000 BTU units, while open living spaces may require 12,000 to 36,000 BTU or higher.
Energy Efficiency Metrics
Focus on the SEER2 (Seasonal Energy Efficiency Ratio) rating to gauge efficiency. Higher SEER ratings translate to better energy savings. Models above 18 SEER2 are ideal for reducing electric bills.
Heating Performance in Cold Climates
Check the minimum ambient temperature rating if heating is essential during cold months. Some units operate reliably down to -13°F or even -22°F, while others are limited to near 5°F.
Voltage and Power Supply
Confirm if your installation location supports the voltage requirements — typical options include 115V or 230V systems. Larger, more powerful units usually need 230V.
Noise Levels and Operation Quietness
Look for models featuring Whisper Technology or noise ratings in the low 20 dB range, especially important for bedrooms or quiet spaces.
Refrigerant Type and Environmental Impact
Most mini splits use R-410A refrigerant, but newer models might use R-32 for better eco-friendliness and performance.
Installation Kit and Professional Setup
Verify whether the unit comes with an installation kit including copper line sets, communication wires, and drainage. Professional installation is recommended for safety and warranty compliance.
Smart Controls and Connectivity
Many mini splits now offer smart port adapters for smartphone app control, allowing remote operation, scheduling, and mode switching for convenience.