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The MRCOOL DIY 5th Gen Hyper Heat 18K Wall Mounted Mini-Split System is built for reliable, year-round comfort in extreme climates. Featuring Hyper Heat technology, this system delivers dependable heating in temperatures as low as –22°F and cooling up to 122°F.
 
Designed for true DIY installation, it includes a pre-charged QuickConnect® line set, eliminating the need for special tools or professional HVAC installation. Ideal for spaces up to approximately 800 sq. ft., this system combines high efficiency, smart controls, and cold-climate performance in one complete solution.

MRCOOL DIY 5th Gen Hyper Heat 18K BTU Mini-Split System – Wall Mounted

$3,173.00Price
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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