HOT ! MRCOOL DIY® 5th Gen E Star 9,000 -36000 BTU Single Zone Mini Split Complete System with 25 Ft. Line Set, 115V-230V (DIY-09-HP-WM-115D25-O)

MRCOOL DIY® 5th Gen E Star Single Zone Mini Split Systems

Experience year-round heating and cooling with the MRCOOL DIY® 5th Gen E Star Single Zone Mini Split systems, designed for effortless, tool-free installation. These high-performance HVAC units deliver efficient climate control across a range of spaces—from cozy rooms to larger living areas—offering capacities from 9,000 to 36,000 BTU. Equipped with the innovative QuickConnect® line set pre-charged with eco-friendly R-454B refrigerant, and wireless control options including the SmartHVAC app and voice command compatibility, these units provide customizable comfort tailored to your needs. Backed by industry-leading warranties, the MRCOOL DIY® line combines convenience, sustainability, and reliability for a premium HVAC solution.

Features

Effortless DIY InstallationTool-free setup with no prior HVAC experience required. The pre-charged QuickConnect® line set and DIYPRO® cable eliminate vacuum pumps and conduit wiring.

Eco-Friendly RefrigerantUses R-454B refrigerant, reducing environmental impact with a lower Global Warming Potential (GWP) compared to older refrigerants like R-410A.

Wireless and Smart ControlsControl your system via the included remote, SmartHVAC app (iOS & Android), or voice commands with Amazon Alexa and Google Assistant for seamless operation.

Advanced Comfort FeaturesIncludes “Follow Me” function that adjusts airflow based on the remote’s location and Dry Mode for dehumidification and improved indoor air quality.

Durability and ReliabilityGold Fin® condenser coating ensures corrosion resistance, especially ideal for coastal environments. Certified safety and performance with UL, ETL, AHRI, and Energy Star listings.

Benefits

Customizable Climate ControlChoose from five BTU options to perfectly match your room size and heating/cooling needs, from small rooms (200 sq ft) to larger spaces up to 1,500 sq ft.

Energy Efficiency & Cost SavingsHigh SEER2 ratings and inverter-driven rotary compressors optimize energy use, lowering utility bills without sacrificing comfort.

Convenient Installation & MaintenanceQuickConnect® line sets and DIYPRO® cables simplify installation and reduce service time, saving you money and hassle.

Smart Home IntegrationCompatible with popular smart home ecosystems, enabling effortless voice and mobile app control from anywhere.

Trusted Warranty CoverageIncludes 7-year compressor warranty, 5-year parts warranty, and extended limited lifetime replacement options when registered with MrCool Care Program.

Voltage and Installation Recommendations

The 9,000 BTU and 12,000 BTU models operate on standard 115V electrical systems, ideal for smaller rooms or spaces with existing residential wiring. For larger areas requiring 18,000 BTU and above, the 230V models offer higher capacity and efficiency, suitable for whole-room climate control in mid to large-sized spaces. Always consult a licensed electrician to ensure proper electrical compatibility for your installation.

Specifications Comparison

Dimensions & Weight

Capacity & Performance

Electrical Requirements

Refrigerant & Piping

Features

Product Manual

Product Warranty

MRCOOL Limited Lifetime Warranty

MRCOOL distributor (hereinafter “Company”) warrants this product against failure due to defect in materials or workmanship under normal use and maintenance as follows.

All warranty periods begin on the date of original installation. If the date cannot be verified, the warranty period begins one hundred twenty (120) days from date of manufacture. If a part fails due to defect during the applicable warranty period Company will provide a new or remanufactured part, at Company’s option, to replace the failed defective part at no charge for the part.

This limited warranty is subject to all provisions, conditions, limitations and exclusions listed on the right side.

LIMITATIONS OF WARRANTIES

ALL IMPLIED WARRANTIES AND/OR CONDITIONS (INCLUDING IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE OR PURPOSE) ARE LIMITED TO THE DURATION OF THIS LIMITED WARRANTY, SOME STATES OR PROVINCES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY OR CONDITION LASTS, SO THE ABOVE MAY NOT APPLY TO YOU.

THE EXPRESS WARRANTIES MADE IN THIS WARRANTY ARE EXCLUSIVE AND MAY NOT BE ALTERED, ENLARGED, OR CHANGED BY ANY DISTRIBUTOR, DEALER, OR OTHER PERSON, WHAT SO EVER.

Product FAQs

Q1 How do I register my warranty?

Answer: Go to here to file your warranty.

Q2 How do I find the AHRI number of my unit?

Answer: You can find links to the AHRI certificates on the documentation page at mrcool.com/documentation.