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The MRCOOL DIY 5th Gen Hyper Heat 18K Ceiling Cassette Mini-Split System delivers high-capacity heating and cooling with a discreet, ceiling-mounted design. Built for extreme climates, it operates efficiently from –22°F to 122°F, providing reliable comfort year-round.
 
Ideal for open spaces and larger rooms, this system combines Hyper Heat performance, quiet operation, and DIY QuickConnect® installation — offering professional-level comfort without professional installation costs.

MRCOOL DIY 5th Gen Hyper Heat 18K BTU Mini-Split System – Ceiling Cassette

$3,682.00Price
Quantity

    • Cooling Capacity: 18,000 BTU

    • Heating Capacity: 18,000 BTU (Hyper Heat)

    • SEER2 (Efficiency): 21.2

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

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

    • Voltage / Power: 230V, 1-phase

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

    • Low Ambient Operation: Operates from –22°F to 122°F

    • Compressor Type: DC Inverter (Rotary)

    • Corrosion Protection: Gold Fin® coating on outdoor unit

    • Smart Controls: Wi-Fi enabled; MRCOOL SmartHVAC app, Amazon Alexa & Google Assistant

    • Remote Features: Follow Me® temperature sensing

    • Certifications: AHRI Certified, ENERGY STAR® Cold Climate

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

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

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