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NEW R-454B Refrigerant

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 36,000 BTU 23 SEER2 (12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

MRCOOL DIY 5th Gen Multi-Zone 2-Zone 36,000 BTU 23 SEER2 (12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump

Regular price $4,629.00 USD
Regular price $5,693.99 USD Sale price $4,629.00 USD
Save $1,064.99 Sold out
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SKUDIYM236HP1218

Type36K

Line Set for 12K Air Handler
Line Set for 18K Air Handler
  • Official MRCOOL store logo – used to represent brand-authorized sellers and verified HVAC product listings.Authorized MRCOOL Dealer
  • Customer service award graphic – MRCOOL’s 5-star HVAC support rating for Easy Pro, DIY, and multi-zone systems.5-Star Customer Service
  • Fast shipping badge for MRCOOL mini splits – official delivery services offering nationwide coverage and tracking.Fast & Secure Shipping
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PRODUCT DESCRIPTION

MRCOOL DIY 5th Gen Multi-Zone 36K BTU Two Zone Ductless Mini Split – 12K + 18K Air Handlers

Take control of your home comfort with the MRCOOL DIY 5th Gen Multi-Zone 36,000 BTU 23 SEER 2 Zone Ductless Heat Pump Split System. This complete DIY heating and cooling solution includes one 12K BTU air handler (ideal for rooms up to 550 sq. ft.) and one 18K BTU air handler (up to 800 sq. ft.), powered by a high-efficiency 36K BTU condenser. Perfect for bedrooms, living rooms, offices, and more, this system delivers year-round comfort with cooling, heating, and dehumidification modes.

Designed for true do-it-yourself installation, the MRCOOL DIY Multi-Zone uses pre-charged Quick Connect® line sets with eco-friendly R-454B refrigerant—no vacuum pump, gauges, or special tools required. Installation is simple, and most homeowners can complete it without professional help, saving thousands in labor costs.

The smart features make this system even better. Each indoor unit includes a digital display for temperature and diagnostic codes, plus wireless remotes. With the MRCOOL SmartHVAC® app, you can control your comfort from anywhere using your phone, or connect with Amazon Alexa and Google Home for hands-free voice control.

Built with durability in mind, the Gold Fin® condenser coating protects against corrosion, and the system includes a 7-year compressor warranty (plus limited lifetime coverage) and a 5-year parts warranty, backed by MRCOOL’s trusted support.

Whether you need energy-efficient cooling in the summer or reliable heating in the winter, this DIY system is built to handle it all. With auto, sleep, and dry modes, plus the Follow Me® feature for personalized comfort, you’ll enjoy efficient, quiet, and customizable performance.

Key Features:

  • 36,000 BTU capacity – supports up to 2 zones (12K + 18K included)

  • 23 SEER high efficiency – lowers energy bills

  • DIY® Pre-Charged Quick Connect® lines – no special tools required

  • Eco-friendly R-454B refrigerant for next-gen performance

  • Smart controls – WiFi app, Alexa & Google Home compatible

  • Gold Fin® condenser – corrosion resistant for long life

  • Multi-function operation: Cool, Heat, Dry, Auto, Sleep

  • Quiet operation with mute mode & filter cleaning alerts

  • 7-Year Compressor Warranty + 5-Year Parts Warranty

Upgrade to the MRCOOL DIY Multi-Zone 36K 2 Zone Mini Split today and enjoy professional-level comfort at a DIY price—only at MRCOOL DIY Direct, your #1 source for genuine MRCOOL systems and accessories.

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