If you’re looking to install an efficient and user-friendly HVAC solution yourself, do-it-yourself mini split systems are a top choice. These systems provide flexible cooling and heating without the need for ductwork, making them ideal for homes, garages, or additions. We’ve selected five highly-rated DIY mini split systems from Amazon that combine energy efficiency, smart controls, and easy installation kits for a seamless setup. The table below summarizes their key features to help you quickly compare before diving into detailed reviews.
| Product | BTU Capacity | Energy Efficiency SEER2 | Smart Controls | Installation Kit Included | Heating Capability |
|---|---|---|---|---|---|
| Klimaire DIY 12,000 BTU Mini Split | 12,000 | 19 SEER2 | Smart Life App, Alexa, Google Home | Yes, 25-ft Pre-Charged Kit | Yes, down to -13°F |
| MRCOOL Easy Pro 18,000 BTU DIY Mini Split | 18,000 | Not specified | WiFi Smart Control | Yes | Heating & Cooling |
| YITAHOME 18,000 BTU Mini Split | 18,000 | 19 SEER2 | WiFi, Alexa Compatible | Complete Kit Included | Heating & Cooling |
| YITAHOME 24,000 BTU Mini Split | 24,000 | 21 SEER2 | WiFi, Alexa Compatible | Complete Kit Included | Heating & Cooling |
| ROVSUN 12,000 BTU Mini Split | 12,000 | 24 SEER2 | Remote Control & Smart Functions | Pre-Charged Installation Kit | Heating & Cooling, Extreme Temps |
Klimaire Do-it-Yourself 12,000 BTU Mini Split Heat Pump
The Klimaire DIY Mini Split offers a quick and simple setup designed specifically for easy self-installation without voiding warranty. It comes with a 25-foot pre-charged installation kit using quick-connect lines and plug-and-play wiring that eliminates the need for vacuuming or special technician tools.
This system provides smart comfort control through the Smart Life App and supports Alexa and Google Home voice commands. With its corrosion-resistant Goldish Fin coils, the unit performs reliably year-round, heating down to -13°F and cooling efficiently in temperatures as low as 5°F. Klimaire backs the product with a 5-year parts and 7-year compressor warranty.
MRCOOL Easy Pro 18,000 BTU DIY Ductless Mini Split Heat Pump
The MRCOOL Easy Pro 18,000 BTU model is perfect for heating and cooling spaces up to 800 square feet. Its DIY design simplifies installation, reducing mess and cost compared to traditional systems.
This ductless heat pump ensures quiet, efficient operation maintaining comfort without high electricity usage. The unit operates on standard 230V power, featuring inverter technology. While the SEER2 rating is not detailed, the product is engineered for convenience and reliable performance with smart WiFi controls included.
YITAHOME 18,000 BTU Mini Split Air Conditioner Heat Pump System
YITAHOME’s 18,000 BTU unit provides energy-efficient cooling and heating with a high-power compressor backed by inverter technology, offering up to 25% energy savings. It is ETL and AHRI certified for reliable performance across up to 1250 square feet.
The system features five operating modes including auto, cool, dry, heat, and fan. WiFi and Alexa compatibility allow for remote control, while noise remains low at under 47 decibels. Additional functions like automatic defrost, self-diagnosis, and health modes with negative ions enhance air quality and ease of use.
YITAHOME 24,000 BTU Mini Split AC and Heat Pump System
This YITAHOME 24,000 BTU mini split is built for larger areas up to 1500 square feet. It features a pre-charged inverter system that delivers up to 25% energy savings compared to older models, and an impressive SEER2 rating of 21.
Users benefit from five modes and four fan speeds, remote and smart controls including Alexa, plus multiple advanced functions like auto defrost and self-cleaning at 135°F. The system operates quietly under 50 decibels, making it suitable for bedrooms, living rooms, and commercial spaces.
ROVSUN 12,000 BTU Mini Split AC/Heat Pump with 24 SEER2
The ROVSUN mini split AC unit offers versatile functionality with a 4-in-1 system: air conditioning, heat pump heating, dehumidifying, and a turbo fan mode. It’s engineered for extreme climates, working efficiently in conditions from -13°F to 131°F.
With advanced inverter technology rated at 24 SEER2, it provides up to 40% energy savings. Certified by ETL and AHRI, this package includes a pre-charged installation kit and smart features like automatic defrost, iFEEL mode for temperature sensing, timer, and sleep mode—ideal for both residential and commercial applications.
Buying Guide for DIY Mini Split Systems
Choosing the right do-it-yourself mini split system involves examining several key factors to ensure you get the best fit for your space and needs:
- BTU Capacity: Match the cooling and heating capacity (BTUs) to your room size for optimal comfort and efficiency. Larger areas require units with higher BTU ratings.
- Energy Efficiency (SEER2 Rating): Higher SEER2 ratings indicate better energy efficiency, lowering operational costs. Look for systems rated above 19 SEER2 for superior performance.
- Installation Kit and Ease: A pre-charged, quick-connect installation kit simplifies the DIY process. Ensure the package includes all necessary components and that the instructions are clear.
- Heating Range and Climate Suitability: Consider the minimum outdoor temperature at which the heat pump can operate effectively, especially for colder climates. Some systems operate well below freezing.
- Smart Controls and Connectivity: Integration with smartphone apps, voice assistants like Alexa and Google Home, and WiFi connectivity enhance convenience for remote temperature adjustments.
- Noise Levels: Look for quiet operation levels (under 50 dB) for bedrooms or noise-sensitive areas to enjoy comfort without disruption.
- Warranty and Support: Choose systems backed by solid manufacturer warranties on parts and compressors to protect your investment.
- Additional Features: Auto defrost, self-cleaning functions, energy-saving modes, and air quality enhancement features like negative ion generators contribute to long-term comfort and system reliability.
By carefully considering these aspects, you can select a DIY mini split system that balances performance, energy efficiency, and ease of installation to meet your specific heating and cooling needs.