If you’re looking for an easy-to-install, energy-efficient way to heat and cool your home or workspace, DIY mini split systems offer an excellent solution. These ductless units provide versatile climate control without the hassle of traditional HVAC installation. Below is a summary table of top-rated products, followed by detailed reviews to help you choose the best system to suit your needs.
Product | BTU Capacity | SEER2 Rating | Coverage Area | Installation Type |
---|---|---|---|---|
MrCool Easy Pro 12k BTU 5th Gen | 9,000 – 12,000 BTU | 19.5 SEER2 | Up to 1200 sq. ft. | DIY |
MRCOOL Easy Pro 12,000 BTU Heat Pump | 12,000 BTU | — | Up to 550 sq. ft. | DIY |
Manastin 12,000 BTU Mini Split Inverter | 12,000 BTU | 17 SEER2 | Up to 750 sq. ft. | DIY |
YITAHOME 18,000 BTU Wifi Mini Split | 18,000 BTU | 19 SEER2 | Up to 1250 sq. ft. | DIY |
DELLA 24,000 BTU Mini Split AC | 24,000 BTU | 19 SEER2 | Up to 1500 sq. ft. | DIY |
Content Navigation
- MrCool Easy Pro 12k BTU 5th Generation DIY Mini Split System
- MRCOOL Easy Pro 12,000 BTU DIY Mini-Split Heat Pump
- Manastin 12000BTU Mini Split AC & Heater with Installation Kit
- YITAHOME 18000 BTU Wifi-Enabled Mini Split Air Conditioner Heat Pump
- DELLA 24000 BTU Mini Split Ductless Inverter System with Heat Pump
- Buying Guide For DIY Mini Split Systems
MrCool Easy Pro 12k BTU 5th Generation DIY Mini Split System

The MrCool Easy Pro 12k BTU DIY mini split offers a high-performance 18.9 to 20.2 SEER2 rating with dual heating and cooling capabilities, suitable for rooms between 500 to 1200 square feet. It features a heat pump with an impressive 11.2 HSPF2 rating for year-round comfort. Equipped with a durable Gold Fin condenser coating, this system is resistant to corrosion and rust, promoting longevity. Installation is user-friendly for DIY enthusiasts, complete with a 16ft lineset and a 1-year labor warranty. This makes it ideal for game rooms, garages, and sunrooms requiring efficient and reliable climate control.
MRCOOL Easy Pro 12,000 BTU DIY Mini-Split Heat Pump

This 12,000 BTU inverter ductless heat pump from MRCOOL provides reliable climate control for spaces up to 550 square feet. It is designed for easy DIY installation, reducing labor and mess significantly compared to conventional HVAC units. Operating quietly with efficient energy consumption, it ensures comfortable temperatures without high utility bills. Ideal for small rooms or offices, this unit offers balanced performance with cooling and heating functionalities.
Manastin 12000BTU Mini Split AC & Heater with Installation Kit

The Manastin 12,000 BTU mini split system stands out for its rapid cooling within 30 seconds and heating capabilities in just 60 seconds. Covering areas up to 750 square feet, it combines a 17 SEER2 rating with advanced inverter technology to maximize energy efficiency. It uses environmentally friendly R32 refrigerant, balancing performance with low environmental impact. The unit features five operating modes, multiple fan speeds, a 24-hour timer, plus specialized modes like Turbo, ECO, Sleep, and Silent to fit different user needs.
YITAHOME 18000 BTU Wifi-Enabled Mini Split Air Conditioner Heat Pump

The YITAHOME 18,000 BTU mini split system covers large areas up to 1250 square feet, making it suitable for bedrooms, garages, RVs, and more. It boasts a 19 SEER2 rating and comes with a complete installation kit. WiFi-enabled and compatible with Alexa, it offers remote and voice control convenience. The heat pump has innovative inverter technology lowering energy consumption by 25%, while maintaining quiet operation below 47 decibels. Modes include auto, cool, dry, heat, fan, with advanced filters targeting dust and pollutants.
DELLA 24000 BTU Mini Split Ductless Inverter System with Heat Pump

The DELLA DIY mini split system delivers powerful cooling and heating with a 24,000 BTU capacity and 19 SEER2 efficiency. It covers large spaces up to 1500 square feet and operates efficiently even in temperatures as low as -4°F. Featuring DC inverter technology, it saves up to 30% on power consumption. This system includes a comprehensive installation kit with copper piping and offers smart functionality such as 4D airflow, multiple fan speeds, sleep and eco modes, and turbo boost for rapid temperature changes.
Buying Guide For DIY Mini Split Systems
Choosing the right DIY mini split system involves several key considerations to ensure you get efficient, reliable, and suitable climate control for your space.
BTU Capacity & Coverage Area
Select a unit with an appropriate BTU rating based on your room size. Undersized systems will struggle to maintain temperature, while oversized units waste energy. For example, 9,000-12,000 BTUs suffice for rooms up to 750 sq. ft., while larger areas require 18,000 BTUs or more.
Energy Efficiency Ratings
Look for high SEER2 and HSPF2 ratings, which indicate efficient cooling and heating performance. Higher ratings typically translate to lower energy bills.
Installation Process
DIY mini splits simplify installation by eliminating ductwork, but complexity varies. Systems with pre-charged refrigerant lines and clear kit components reduce setup difficulty. Ensure you are comfortable following installation guides or consider professional assistance if needed.
Smart Features & Connectivity
WiFi functionality and smart home compatibility enhance convenience by allowing remote temperature control via apps or voice assistants like Alexa. Some units also offer self-diagnosis and automatic defrost features.
Noise Level
For bedrooms or offices, quiet operation is important. Choose units with noise levels below 50 decibels for a tranquil environment.
Durability And Warranty
Features like rust-resistant coatings prolong unit lifespan, especially if installed in humid or outdoor-adjacent areas. Confirm warranty terms, particularly on labor and parts, for added assurance.
Heating Capability
Heat pump mini splits provide year-round climate comfort by offering both heating and cooling. Check the lowest operational ambient temperature if you live in a colder climate.
Considering these factors will help you select a DIY mini split system that meets your space requirements, budget, and convenience preferences for effective climate control.