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The MRCOOL 5th Generation DIY Mini‑Split System brings high-performance climate control that’s truly homeowner‑friendly. Engineered for do-it-yourself installation, this system uses pre-charged QuickConnect® line sets filled with R-454B refrigerant — no vacuum tools needed. You’ll get efficient heating and cooling, smart Wi-Fi control, and long-term durability, all while avoiding the cost of professional install.

MRCOOL DIY 5th Gen 9K BTU Single Zone Mini Split

Rating is 5.0 out of five stars based on 2 reviews
$2,329.00Price
Quantity
    • Cooling Capacity: 9,000 BTU

    • Heating Capacity: 9,000 BTU

    • SEER2 (Efficiency): Around 23.5

    • Refrigerant: R-454B (eco-friendly)

    • Line Set: 25 ft pre-charged QuickConnect line set

    • Voltage / Power: 115V

    • Noise Level (Outdoor): Approximately 58 dB(A)

    • Low Ambient Operation: Works down to very low outdoor temps (around 5°F)

    • Compressor Type: DC Inverter (Rotary)

    • Corrosion Protection: Gold Fin coating on outdoor unit

    • Smart Controls: Wi-Fi enabled; works with MRCOOL SmartHVAC app, plus Amazon Alexa and Google Assistant

    • Remote Features: Includes a “Follow Me” sensor that adjusts based on where the remote is located

    • Certifications: AHRI, ENERGY STAR (for certain models)

    • DIY Installation: Uses pre-charged lines and DIYPRO® cable—no vacuum pump required

    • Warranty: 5-year parts, 7-year compressor (with registration)

    • Indoor Unit Dimensions: ~31.6″ W × 11.6″ H

    • Indoor Unit Weight: ~24 lbs

    • Outdoor Unit Dimensions: ~28.4″ W × 19.5″ H × 10.6″ D

    • Outdoor Unit Weight: ~55 lbs

Reviews

Rated 5 out of 5 stars.
Based on 2 reviews
2 reviews

  • Austin HreskoJan 30
    Rated 5 out of 5 stars.
    Perfect DIY Mini Split – Quiet, Efficient, and Easy to Install

    The mini split exceeded my expectations. Installation was straightforward thanks to the pre-charged line set, and the unit runs extremely quiet while cooling and heating the space quickly and efficiently. The Wi-Fi/app control is a great bonus, and overall build quality feels solid. It’s a perfect solution for anyone wanting a reliable, high-efficiency mini split without the cost of professional installation.

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  • James RichardsonJan 30
    Rated 5 out of 5 stars.
    Professional Performance Without the Install Cost

    This MRCOOL mini split is an excellent option for small spaces. Setup was simple and well thought out, even for a first-time installer. The system cools and heats fast, stays whisper quiet, and the efficiency is noticeable right away. Being able to control it from my phone is a nice touch, and overall it delivers professional-level performance at a DIY-friendly price.

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