Description:
Off-grid cabin? Bonus room? Detached garage? This DIY mini split brings serious comfort without hiring an HVAC crew.
The MRCOOL DIY 24K 4th Gen Mini Split packs 24,000 BTUs of heating and cooling power into a homeowner-friendly package that covers up to 1,000 sq ft with whisper-quiet efficiency. With a 20.5 SEER rating, this system is Energy Star certified and ready to slash your power bill—no ductwork required.
The secret? A pre-charged Quick-Connect Line Set that makes installation a breeze, even if it’s your first time tackling HVAC. Just mount the units, connect the lines, and plug in. It’s that simple.
You’ll also get full control via remote or smartphone, six climate modes (including dehumidify and sleep), and a Gold Fin® condenser that’s built to survive harsh weather and coastal air. Whether you're heating a workspace or cooling a cabin, this system just works.
Why It Stands Out:
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DIY-Ready Install – 25' pre-charged line set included. No refrigerant handling or pro needed
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Energy Star Certified – Up to 20.5 SEER efficiency keeps costs down
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All-Season Power – Heats and cools in extreme temperatures, down to -13°F
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Smartphone Control – Adjust temps from anywhere with the SmartHVAC app
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Follow Me Function – Targets comfort based on your remote’s location
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Quiet Comfort – As low as 33 dB for bedroom- or office-friendly operation
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Built for the Long Haul – Twin-rotary compressor and corrosion-resistant construction
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Warranty Protection – 7-year compressor, 5-year parts (lifetime option with registration)
What’s Included:
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24K BTU Air Handler
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24K BTU Condenser
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25 ft. Pre-Charged Line Set (R-410A)
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Handheld Remote + Batteries
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Mounting hardware and manuals
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App-ready controls (iOS & Android)
Specs at a Glance:
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Cooling Capacity: 23,000 BTU
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Heating Capacity: 25,000 BTU
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Coverage: Up to 1,000 sq ft
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Efficiency Ratings: 20.5 SEER / 12.5 EER / 10.5 HSPF
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Voltage: 208-230V, Single Phase
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Sound Level: 33–48.5 dB
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Refrigerant: R-410A (81.13 oz)
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Line Set: 25 ft included (max 98.4 ft)
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Certifications: UL Listed, AHRI, Energy Star
Cut the ductwork, keep the comfort. The MRCOOL DIY 24K is perfect for modern off-gridders, weekend DIYers, and anyone who wants total climate control without the cost of hiring it out.