If you’re looking to improve your home’s heating and cooling without professional installation, a DIY mini split heat pump is a practical and energy-efficient solution. These systems combine air conditioning and heating capabilities in one compact unit, offering easy installation and smart controls. Whether you want to cool a sunroom or heat a garage, a DIY mini split can suit your needs. Below is a summary of top models currently available on Amazon, helping you compare features quickly and choose the right unit for your space.
Product | Cooling Capacity (BTU) | SEER Rating | Heating Capacity (BTU) | DIY Friendly | Smart Controls |
---|---|---|---|---|---|
MRCOOL Easy Pro 12,000 BTU | 12,000 | Not Specified | 12,000 | Yes | Yes (WiFi) |
MrCool Easy Pro 9k BTU 20.2 SEER2 | 9,000 | 20.2 SEER2 | 9,000 | Yes | Not Specified |
Perfect Aire 12,000 BTU DIY Mini-Split | 12,000 | 19.5 | 12,000 | Yes | Yes (WiFi) |
Pioneer Diamante Series 12,000 BTU | 12,000 | 20 SEER | 12,000 | No (Professional Recommended) | Not Specified |
Klimaire Do-it-Yourself 12,000 BTU | 12,000 | 19 SEER2 | 12,000 | Yes | Yes (Alexa, Google Home) |
MRCOOL Easy Pro 12,000 BTU Mini-Split Heat Pump

The MRCOOL Easy Pro 12,000 BTU ductless mini split offers reliable temperature control for rooms up to 550 square feet. This 115-volt inverter system is designed with a focus on easy DIY installation, significantly reducing setup costs and mess. Its combo indoor/outdoor unit emits low noise and operates efficiently, helping you keep energy costs manageable. Smart WiFi controls add convenience for remote temperature adjustments.
MrCool Easy Pro 9k BTU 20.2 SEER2 DIY Mini Split Heat Pump

This 5th generation MrCool Easy Pro mini split features an impressive SEER2 rating of 20.2 and heating performance with an 11.2 HSPF2 rating. Its 9,000 to 12,000 BTU capacity fits spaces from 500 to 1,200 square feet, making it versatile for various rooms including garages and sunrooms. The system includes a gold fin coating on the condenser, enhancing durability and corrosion resistance.
Perfect Aire 12,000 BTU DIY Mini-Split Heat Pump with WiFi Control

The Perfect Aire 12,000 BTU mini-split system combines 19.5 SEER efficiency with a pre-charged 25ft line set for straightforward installation. Designed for DIY enthusiasts, it doesn’t require an HVAC technician for setup. The unit features smart WiFi control for convenient temperature adjustments from your phone. It runs on standard 115-volt power, suitable for many residential spaces.
Pioneer Diamante Series 12,000 BTU Mini-Split Heat Pump

The Pioneer Diamante Series offers a high-efficiency mini split with 20 SEER and 10 HSPF ratings, providing powerful cooling and heating at 12,000 BTU/hour. It supports a full range of capacities from 9,000 to 36,000 BTUs, ideal for residential and light commercial use. While not primarily designed for DIY installation, this model suits those with some HVAC experience or professional installation assistance.
Klimaire DIY 12,000 BTU Mini Split Heat Pump with Smart Features

Klimaire’s DIY 12,000 BTU mini split includes a 25-foot pre-charged quick connect installation kit for a hassle-free setup that doesn’t void warranty. Compatible with Alexa and Google Home, it lets you control temperature and modes remotely. Engineered for reliable performance even in freezing lows of -13°F, the system has corrosion-resistant goldish fin coils and comes with a comprehensive warranty package.
Buying Guide for DIY Mini Split Heat Pumps
When choosing a DIY mini split heat pump for your home, consider the following key factors to ensure the system meets your needs efficiently and cost-effectively.
Cooling and Heating Capacity
Select a unit with the appropriate BTU capacity for the room size. Undersized systems struggle to maintain comfort, while oversized units cycle frequently, wasting energy. A rough estimate is about 20 BTUs per square foot for cooling.
Energy Efficiency Ratings
Look for high SEER (Seasonal Energy Efficiency Ratio) ratings for cooling and HSPF (Heating Seasonal Performance Factor) for heating efficiency. Higher ratings indicate better energy use and lower utility bills.
Installation Ease and DIY Compatibility
DIY mini splits with pre-charged refrigerant lines and quick-connect fittings simplify installation. Systems offering clear instructions and no need for special HVAC tools are more accessible for non-professionals.
Smart Control Features
WiFi-enabled systems allow remote operation via mobile apps or smart home assistants, providing convenience and potential energy savings by scheduling and fine-tuning comfort settings.
Durability and Warranty
Choose units with corrosion-resistant components, especially if located outdoors in varying weather. A solid warranty covering parts and compressor adds peace of mind.
Noise Level
Mini splits with quiet operation enhance comfort, particularly if installed in bedrooms or offices.
Voltage and Power Requirements
Confirm the unit’s power needs match your home’s electrical capacity to avoid costly upgrades.
By considering these factors, you can select a DIY mini split heat pump that provides efficient, reliable, and convenient climate control tailored to your specific living spaces.