DIY mini split air conditioners offer a flexible, energy-efficient solution for cooling and heating various spaces without the complexity of traditional systems. These units combine ease of installation with advanced features like smart controls, quiet operation, and year-round comfort. Below is a summary table featuring the top DIY mini split AC units selected for their reliability, efficiency, and user convenience.
| Product | BTU Capacity | Energy Efficiency | Coverage Area | Key Features |
|---|---|---|---|---|
| MRCOOL Easy Pro 18,000 BTU | 18,000 BTU | Standard Efficiency | Up to 800 sq. ft. | DIY installation, quiet operation, smart WiFi |
| MrCool Easy Pro 12k BTU 19.5 SEER2 | 9,000-12,000 BTU | 19.5 SEER2 | Up to 1,200 sq. ft. | Heat pump, corrosion-resistant, versatile use |
| COSTWAY 12000BTU Mini Split | 12,000 BTU | 20 SEER2 | Up to 750 sq. ft. | Inverter technology, 5 modes, quiet operation |
| DELLA Vario Series 12000 BTU | 12,000 BTU | 19 SEER2 | Up to 550 sq. ft. | Smart sensor, Alexa compatible, dehumidification |
| Pioneer Diamante Series 12000 BTU | 12,000 BTU | 20 SEER | Various sizes | High efficiency, full line of capacities, inverter heat pump |
MRCOOL Easy Pro 18,000 BTU DIY Mini Split AC
The MRCOOL Easy Pro 18,000 BTU features strong temperature control suitable for rooms up to 800 square feet. It is a ductless heat pump designed with a 230-volt Easy Pro Series for reliability and user-friendly installation. The DIY kit minimizes installation complexities, lowering costs and installation mess.
It operates quietly, ensuring comfort without the distraction of loud machinery. The smart WiFi control integration allows remote management, making it convenient for modern homes. This combination of efficient performance and quiet operation stands out in this unit’s design.
MrCool Easy Pro 12k BTU 19.5 SEER2 Mini Split Heat Pump
The MrCool Easy Pro 12k BTU is a versatile ductless heat pump split system, excellent for cooling and heating areas ranging from under 500 to 1,200 square feet. Rated with an impressive 18.9-20.2 SEER2 and 11.2 HSPF2, this system achieves high efficiency across seasons.
The unit includes a gold fin condenser coating for added durability and superior resistance to corrosion and rust. Its ability to maintain heat transfer efficiency while offering flexible HVAC capability makes it suitable for game rooms, garages, or sunrooms requiring reliable year-round comfort.
COSTWAY 12000BTU Mini Split AC and Heater
The COSTWAY 12000BTU unit combines energy-efficient heating and cooling using an innovative inverter technology to regulate compressor frequency, reducing overall power consumption. It is AHRI certified and pre-charged, capable of cooling spaces up to 750 square feet.
This model features five operational modes—auto, cool, dry, heat, and fan—with four fan speeds and a sleep mode to maximize user comfort. A handy remote provides easy control, while quiet operation ensures restful environments. ECO and turbo functions add to its versatility.
DELLA Vario Series 12000 BTU Mini Split AC with Alexa
The DELLA Vario Series 12000 BTU is a ductless mini split system boasting a 19 SEER2 rating and Alexa compatibility for smart home integration. It supports efficient cooling and heating down to -4°F and includes dehumidification for improved air quality.
Advanced automated features include auto defrost, self-diagnosis, and compressor pre-heating, alongside multiple fan speeds and a smart sensor that adjusts airflow based on the temperature detected at the remote control location. This design improves personal comfort and energy usage.
Pioneer Diamante Series 12000 BTU Mini Split Heat Pump
The Pioneer Diamante Series provides a high-efficiency mini split inverter heat pump with 12000 BTU cooling and heating output. Boasting a 20 SEER rating and 10 HSPF, it accommodates a variety of residential and light commercial applications.
This series offers a full spectrum of capacities from 9,000 to 36,000 BTU/hour, specializing in ductless comfort control even in low ambient temperatures. Its inverter technology optimizes power usage while providing reliable temperature management year-round.
Buying Guide for DIY Mini Split AC Units
Choosing the right DIY mini split air conditioner involves several factors to ensure you get an efficient, reliable, and cost-effective cooling and heating solution for your space.
BTU Capacity and Room Size
Select an AC unit with the appropriate BTU rating that matches your room size. Undersized units won’t cool effectively, while oversized units can waste energy. Common ranges from 9,000 to 18,000 BTUs suit spaces from roughly 400 to 1,000 square feet.
Energy Efficiency
Look for units with high SEER (Seasonal Energy Efficiency Ratio) and HSPF (Heating Seasonal Performance Factor) ratings. Higher numbers indicate better energy performance and potential savings on utility bills over time.
Installation and DIY Friendliness
Choose systems marketed explicitly for DIY installation with pre-charged lines and comprehensive installation kits to reduce setup complexity and costs. Proper knowledge and adherence to installation guidelines are critical for optimal functioning.
Heating and Cooling Options
Many mini splits offer heat pump functionality for year-round use. Confirm the unit supports both efficient cooling and heating if desired. Multiple operational modes and fan speeds add flexibility for comfort control.
Additional Features
- Smart Connectivity: WiFi or Alexa-enabled units provide remote control convenience.
- Noise Levels: Units with quiet operation enhance comfort, especially for bedrooms or living areas.
- Durability: Features like corrosion-resistant coatings (e.g., gold fin condenser) extend system life.
- Warranty and Support: Consider labor and manufacturer warranties for peace of mind.
Environmental Considerations
Check refrigerant type; R32 and similar newer refrigerants offer lower environmental impact compared to older types. This affects both air quality and regulatory compliance.