MRCOOL® DIY Series 5th Gen OuttaSight 18,000 BTU 230V One-Way Ceiling Cassette (DIYCASSETTE18HP-230D25-O)
The 5th Generation MRCOOL® DIY® Series OuttaSight® 18K BTU 230V One-Way Ceiling Cassette delivers powerful, energy-efficient heating and cooling for spaces up to 800 sq. ft. Designed with the DIY homeowner in mind, this unit offers easy installation without the need for specialized tools or vacuuming. It fits perfectly between 16" ceiling joists, including pre-manufactured I-joists, for a clean, flush look—ideal for both new construction and retrofit projects.
This air handler is compatible with both multi-zone and single-zone MRCOOL® DIY® 5th Gen systems and connects effortlessly to the DIY® Quick Connect® line set, pre-charged with the environmentally friendly R-454B refrigerant.
With advanced filtration, whisper-quiet operation, and multiple control options—including a wireless remote, the SmartHVAC® app, and voice control via Amazon Alexa or Google Assistant—this system ensures customized, year-round comfort. Backed by an industry-leading warranty, it’s built for long-lasting performance.
FEATURES:
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Covers up to 800 sq. ft. of living space
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DIY Installation – No special tools or experience required
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Pre-Charged Quick Connect® Line Set – Vacuum-free installation using R-454B refrigerant
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Eco-Friendly Refrigerant – Lower GWP (Global Warming Potential) than R-410A
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Works with MRCOOL® 5th Gen DIY Multi-Zone and Single-Zone Systems
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Low-Profile Design – Fits between 16" ceiling joists, including I-joists
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One-Way Airflow Cassette – Space-saving ceiling-mounted solution
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Two-Stage DC Motor – Enhanced efficiency and quiet performance
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Whisper-Quiet Operation – Ideal for bedrooms, offices, or living areas
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Wireless Control Options
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"Follow Me" Function – Adjusts airflow based on remote’s location
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Dry Mode – Dehumidifies to improve indoor air quality
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Elevation Function – Filter panel lowers for easy maintenance
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Advanced Filtration – Helps reduce airborne contaminants
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Multiple Operating Modes – Heating, cooling, fan-only, dry, auto
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Certified Quality – Intertek listed (5031495)
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Industry-Leading Warranty
SPECIFICATIONS:
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Dimensions
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13.19" D x 8.98" H x 50.31" W
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CFM
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400 / 352 / 300 / 207 / 207
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Cooling Capacity (BTU)
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18800
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Heating Capacity (BTU)
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22700
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Voltage (V)
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208-230
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Phase
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1
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Cycle
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60
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Max Fuse Breaker (A)
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15
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Min Circuit Ampacity (A)
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3
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Mount Type
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Ceiling
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Color
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White
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Rated Load
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1.2
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Max Coverage Area
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800
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Refrigerant Type
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R-454B
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Decibel Rating (DBA)
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41.5
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Decibel Rating Low (DBA)
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26
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Decibel Rating High (DBA)
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44
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Air Flow Direction
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1-Way
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Liquid Line Size
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1/4
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Suction Line Size
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1/2
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Blower Motor RPM
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1344/1184/1024
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Filter Type
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Reusable
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Fan Only Option
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Yes
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Quiet Mode
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Yes
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Sleep Mode
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Yes
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Auto Cool
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Yes
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WIFI Compatibility
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Yes
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APP Compatibility
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Yes
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Works with IOS
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Yes
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Works with Android
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Yes
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Remote Control Included
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Yes
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Registered Warranty
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Limited Lifetime Compressor
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Base Warranty
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5-Year Part/7-Year Compressor
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Bas Parts Warranty
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5 Years
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Registered Compressor Warranty
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Limited Lifetime Compressor
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Base Compressor Warranty
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7 Years
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Has Batteries
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Yes
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Contains Electronics
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Yes
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Contains Chemicals
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Yes
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Contains Aerosol
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Yes
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Contains Compressed Gas
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Yes
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Proposition 65 Warning
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Yes
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Restricted States
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GU;PR;VI
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Net Weight (Lbs)
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45
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Gross Weight (Lbs)
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88
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GUIDE:
