Finding the best mini split heating and cooling system can increase your home’s comfort and energy efficiency all year round. Whether you need to control temperatures in a single room or multiple zones, mini split systems provide flexible, ductless solutions. This guide highlights five highly-rated mini split systems, comparing coverage area, energy efficiency, special features, and more to help you choose the ideal unit for your needs.
| Product | Brand | Coverage Area | BTU | SEER2 | Key Feature |
|---|---|---|---|---|---|
| MRCOOL 9,000-BTU Mini Split AC & Heat Pump | MRCOOL | Up to 375 sq. ft. | 9,000 | Not listed | Simple, reliable single-zone comfort |
| COSTWAY 12,000BTU Mini Split AC & Heater | COSTWAY | Up to 750 sq. ft. | 12,000 | 20 | 5 modes, quiet operation, inverter tech |
| DELLA Vario 18,000 BTU Wifi Mini Split AC | Della | Up to 1,000 sq. ft. | 18,000 | 19 | WiFi, Alexa, 4D airflow, multiple modes |
| GarveeHome 12,000 BTU Mini Split AC/Heater | GarveeHome | Up to 750 sq. ft. | 12,000 | 19 | WiFi, Google Home, inverter, energy saver |
| Mountman 12,000 BTU Mini Split AC/Heater | Mountman | Up to 750 sq. ft. | 12,000 | 19 | Self-clean, auto-defrost, ultra-quiet |
MRCOOL 9,000-BTU Mini Split AC & Heat Pump
The MRCOOL 9,000-BTU 115V Ductless Mini Split Air Conditioner & Heat Pump is designed for dependable climate control in rooms up to 375 square feet. This system delivers both heating and cooling functions in a ductless setup, making it suitable for a wide range of indoor spaces where traditional ductwork isn’t feasible.
Key features:
- 9,000 BTU capacity handles small to medium rooms.
- Convenient heating and cooling modes for year-round comfort.
- Runs on standard 115V power.
- Ductless, inverter technology for energy savings and quieter operation.
- Installation recommended by a professional HVAC technician.
This system is a strong choice if you’re seeking a single-zone solution with effective temperature management and efficient operation.
COSTWAY 12,000BTU Mini Split AC & Heater
The COSTWAY 12,000BTU Mini Split Air Conditioner & Heater is engineered for energy efficiency and flexible comfort in spaces up to 750 square feet. With a high power compressor and inverter technology, it offers both cooling in summer and heating in winter without sacrificing energy savings.
Key features:
- 12,000 BTU output for larger rooms or open-concept areas.
- AHRI certified for reliability and efficiency.
- 20 SEER2 rating means lower energy consumption and utility bills.
- 5 operation modes: auto, cool, dry, heat, and fan.
- 4 fan speeds, sleep and ECO modes, iFEEL sensor, and turbo function.
- Quiet operation and a remote with a screen that dims automatically.
The COSTWAY mini split stands out due to its fine-tuned controls, energy-saving inverter, and quiet performance, making it a solid all-around choice for many homeowners.
DELLA Vario 18,000 BTU WiFi Mini Split AC
The DELLA Vario 18,000 BTU Wifi Mini Split is a high-capacity, smart air conditioning unit ideally suited for rooms up to 1,000 square feet. It offers both cooling and heating, supported by advanced inverter technology and convenient smart controls.
Key features:
- 18,000 BTU climate control for large rooms and open areas.
- 19 SEER2 for energy efficiency — up to 30% savings over conventional systems.
- WiFi-enabled for remote operation; compatible with Alexa for voice control.
- DC inverter heat pump works in outdoor temps as low as 5°F.
- Multiple comfort modes: heating, cooling, dry, auto, 4D air flow, sleep, timer, and turbo.
- Full installation kit included for professional setup.
If you need high-capacity, smart, and flexible heating and cooling, this DELLA unit combines performance and modern connectivity.
GarveeHome 12,000 BTU Mini Split AC/Heater
The GarveeHome Mini Split AC/Heating System combines efficient performance with smart-home features to keep your space comfortable year-round. Covering up to 750 sq. ft., this 19 SEER2 system is energy conscious and can be controlled via both remote and WiFi.
Key features:
- 12,000 BTU with inverter technology for cost-saving efficiency and reliable comfort.
- WiFi-enabled and works with Google Home for smart control and energy management.
- Multiple modes: Cool, Fan, Dry, Heat, Auto, and ECO.
- Backlit LCD remote for easy in-room operation.
- Seasonal flexibility: maintains temperatures from 60°F to 89°F.
- Pre-charged and includes installation kit (230V power supply required).
This GarveeHome model is an attractive choice for those who regularly use smart home platforms and want robust, efficient year-round climate control.
Mountman 12,000 BTU Mini Split AC/Heater
The Mountman 12,000 BTU Mini Split AC/Heating System offers versatile options for keeping up to 750 square feet comfortable. Its four operating modes and four fan speeds provide flexibility for every season and situation, while advanced features simplify maintenance and operation.
Key features:
- 19 SEER2 inverter-driven efficiency means lower electricity usage for heating and cooling.
- 4 operation modes: Cool, Heat, Dry, Fan, plus sleep mode, ECO mode, and turbo boost.
- Ultra-quiet (down to 26dB) sleep mode and remote-controlled convenience.
- Intelligent self-cleaning and auto-defrost features reduce maintenance and improve system longevity.
- Pre-charged condenser; full installation kit included (208/230V required).
The Mountman mini split is ideal for those wanting effortless comfort, reliable performance, and a focus on clean air and easy upkeep.
Mini Split Heating & Cooling System Buying Guide
Key Features To Consider
When choosing the best mini split heating and cooling system, start by identifying the right BTU rating for your space. Generally, you’ll need about 20 to 30 BTU per square foot for adequate cooling and heating. Too small a unit won’t provide enough comfort; too large a system will cycle inefficiently and consume more energy.
- Coverage Area: Match the unit’s specified area with your room size for optimal results.
- Energy Efficiency: Look for higher SEER or SEER2 ratings; these units consume less power and save money over time.
- Heating & Cooling Modes: Most mini splits now come with both heating and cooling features using heat pump technology, making them suitable for all seasons.
- Smart Controls & Connectivity: Modern systems may support WiFi, Alexa, or Google Home integration, letting you manage your comfort remotely or via voice commands.
- Noise Level: Ultra-quiet operation is a big plus, especially for bedrooms or offices.
- Advanced Functions: Features like auto-defrost, self-clean, sleep/eco modes, and programmable timers add value and reduce maintenance.
- Installation: Most mini splits require professional installation, which ensures safety and system longevity.
Single-Zone vs. Multi-Zone Systems
Single-zone systems, like the MRCOOL 9,000-BTU and individual 12,000 BTU options, are best for one room or area. If you want whole-home control or need to manage temperature in several rooms separately, multi-zone units might be more effective, but those are outside the core focus of most residential installations listed here.
Energy Savings And Inverter Technology
Units featuring inverter compressors (most modern ductless mini splits) can adjust their output to precisely maintain your set temperature. This results in more consistent comfort, less wear and tear, and significant energy savings compared to traditional fixed-speed compressors. Look for SEER2 ratings of 19 or above for the best performance.
Climate Flexibility
If you live in an area with cold winters, verify the minimum operational temperature for the heat pump. Models like the DELLA Vario and Mountman work efficiently in temperatures as low as -4°F.
Key Comparison Points
- BTU/Room Size: Select a model that matches your room or zone size for efficient operation.
- Specialized Modes: ECO, sleep, iFEEL, turbo, and smart scheduling maximize efficiency and comfort.
- Maintenance Features: Self-clean and auto-defrost extend system life and promote healthy indoor air.
- Installation Requirements: Check power supply compatibility (115V, 208-230V) and ensure installation by a trained professional.
With these considerations, you can confidently choose a mini split heating and cooling system that fits your space, comfort needs, and energy goals.