MRCOOL Mini Splits: Homeowner FAQs

Written by: Adam Leech

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Published on

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Time to read 6 min

Who Manufacturers & Makes MRCOOL Mini Splits?

MRCOOL mini splits are manufactured by Gree and assembled in the United States. MRCOOL is headquartered in Kentucky where they have a warehouse that they assemble the ductless units. And the MRCOOL brand was founded by Magnus Cool in 2014.


MRCOOL's Mini Splits have gained popularity because they are specifically designed with do-it-yourselfers in mind. This makes them an excellent choice for homeowners who want to take control of their heating and cooling installations without needing professional help. The DIY range comes with comprehensive instructions and most of the necessary tools, ensuring that even those with minimal technical skills can successfully install the system.


They're also priced at the lower end of the market. They're an affordable option for a wider range of consumers. By offering a budget-friendly solution, MRCOOL enables more homeowners to experience the benefits of modern climate control systems. Whether you're looking to cool a single room or multiple zones within your house, MRCOOL's mini splits provide a versatile and economical solution for achieving year-round comfort.

Is MRCOOL A Good Brand?

MRCOOL is a good brand designed specifically for do-it-yourselfers. The company has carved a niche in the market by offering user-friendly products that are designed for easy installation without requiring professional help. This makes MRCOOL mini splits a popular choice for homeowners who prefer to handle their own installations. Their systems come with comprehensive instructions and most of the necessary tools, making it straightforward for anyone with basic skills to successfully install a unit.

Are MRCOOL Mini Splits Reliable?

MRCOOL mini splits are considered reliable. Across the majority of sites online they have a 4.4 star rating with many customer reviews highlighting their durability and consistent performance compared to other brands. These systems are designed to provide efficient heating and cooling solutions for various spaces, including homes, garages, and restaurants, ensuring optimal temperatures throughout the year. Additionally, MRCOOL supports their systems with a lifetime limited warranty on the compressor for select models, demonstrating their commitment to quality and customer satisfaction. This warranty offers peace of mind, knowing that MRCOOL stands behind the longevity and reliability of their mini-split units.

How Energy Efficient Are MRCOOL Mini Splits?

MRCOOL offers a range of mini splits with energy efficiency ratings ranging from 18 to 22.5 SEER (Seasonal Energy Efficiency Ratio). The high SEER ratings of MRCOOL mini splits mean that they consume less electricity compared to traditional HVAC systems. Like all ductless systems, they use advanced inverter technology  allowing for precise temperature control and minimal energy waste.

Can MRCOOL Units Be Used In Multiple Rooms?

Yes, MRCOOL units can be used in multiple rooms. MRCOOL offers a comprehensive range of multi-zone mini split systems designed to provide heating and cooling to multiple rooms within your home. The multi-zone systems allow you to connect multiple indoor units to a single outdoor unit allowing you to manage the climate of different areas independently.


MRCOOL multi-zone systems offer options ranging from dual-zone to five-zone configurations. The indoor units offered by MRCOOL are wall mounted, ceiling cassette, and ducted air handlers. The range of wall mounted units range from 9,000 to 36,000 BTU units. The range of ceiling cassette units range from 9,000 to 18,000 BTU units. The range of ducted air handlers range from 18,000 to 30,000 BTU units.

Do MRCOOL Mini Splits Come With A Warranty?

Yes, MRCOOL offers a warranty for each of their mini split systems. To receive their warranty, customers must register their unit on the MRCOOL website within 60 days of installation. This registration process is crucial for activating the warranty and ensuring coverage. Warranties are only applied if the product stays in the original installation location.

What Is Included In The MRCOOL Warranty?

MRCOOL warranties their products against defects in materials or workmanship under normal use and maintenance. Here's a breakdown of what's included in the warranty:


  • Coverage Period : The warranty begins on the date of original installation. If this date cannot be verified, it starts 120 days from the date of manufacture.

  • Parts Replacement : If a part fails due to a defect during the warranty period, MRCOOL will provide a new or remanufactured part at no charge.

  • Installation Requirements : The warranty applies only to systems installed by a state-certified or licensed HVAC contractor in accordance with all local and state laws, building codes, and MRCOOL installation instructions. However, for the DIY series units, a certified contractor is not required.

  • Warranty Duration :

    • Seven (7) years on the compressor.

    • Five (5) years on all parts for the original registered end-user.

    • One (1) year on the remote control unit.

  • Original Installation Location : The warranty is valid only for products that remain at their original installation address.

  • Non-Transferable : The warranty is non-transferable and is assigned to the owner named in the product registration.


The warranty does not cover labor costs, normal maintenance, failures due to faulty installation or misuse, electrical issues, environmental damage, unauthorized parts, and products installed outside the USA and Canada, among other exclusions.

Can You Install MRCOOL By Yourself?

MRCOOL promotes user-friendly installation, allowing customers to set up their systems without professional help. Designed for DIY, MRCOOL systems include pre-charged line sets for easy setup.

What Types Of MRCOOL Mini Splits Are Available?

The types of MRCOOL mini splits that are available are the DIY Easy Pro, the DIY 4th Generation, and the Olympus series. The DIY Easy Pro series is a 115v system. The DIY 4th Generation series is a 230v system. And the Olympus series is designed for colder climates.


DIY Easy Pro Series

Perfect for homeowners looking for a simple installation. The DIY Easy Pro Series operates on a power supply of 115v. This series is ideal for smaller spaces and offers an affordable solution. It includes features like Wi-Fi control for convenience and ease of use.

DIY 4th Generation Series

The DIY 4th Gen Series is built for those requiring a more powerful unit, operating on a 230v power supply. It is suitable for larger spaces and provides enhanced performance with a higher BTU capacity. This series also supports Wi-Fi control and offers improved energy efficiency, making it a popular choice for users looking to minimize energy costs.

Olympus Series

The Olympus Series is designed to handle extreme temperatures, making it the go-to choice for those living in areas with harsh climates. Known for its Hyper Heating capabilities, this series ensures optimal comfort by maintaining performance even in sub-zero temperatures. It also offers multi-zone units, allowing users to control the climate in different areas of their home or business independently.

Each MRCOOL Mini Split series has its own unique features tailored to different home sizes, climates, and installation preferences, ensuring that there's a perfect fit for every customer. Whether you need a simple DIY installation, robust heating capabilities, or multi-zone control, MRCOOL has a mini split solution to meet your requirements.

What Is The Difference Between Easy Pro And DIY MRCOOL?

The MRCOOL DIY Easy Pro and DIY 4th Generation series are both designed for homeowners who want to install their mini-split systems without professional help, but they cater to different needs.


The DIY Easy Pro Series is particularly user-friendly because it's designed to be installed without requiring a dedicated breaker from the electric panel. It operates on a 115v power supply, making it ideal for smaller spaces and simpler installations. This series is perfect for those who want an affordable, efficient solution without needing extensive electrical modifications.


On the other hand, the DIY 4th Generation Series is built for more demanding applications. It requires a 230v power supply and is suitable for larger spaces, offering higher BTU capacities for enhanced performance. Although it may require more electrical setup, it provides improved energy efficiency and is a great choice for minimizing energy costs while delivering robust heating and cooling capabilities.


Both series include features like Wi-Fi control for added convenience, but the choice between them largely depends on the size of the space and the complexity of the installation you’re prepared to undertake.