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The MRCOOL DIY Select
24k BTU is the ultimate fusion of absolute convenience and modern climate control. Specifically engineered for seamless, tool-free installation, this compact powerhouse eliminates the need for professional vacuum pumps or specialized gauges, providing an accessible, budget-friendly solution for year-round comfort.
The MRCOOL DIY Select 24,000 BTU is the most homeowner-friendly ductless mini split on the market — and one of the most searched. Covering spaces up to 1,050 square feet, this 230V single-zone system heats and cools down to -13°F and was designed specifically to be installed without an HVAC license, vacuum pump, or refrigerant certifications. The pre-charged, quick-connect line set (included, 11.5 ft) snaps together at both ends — you do not need to measure, flare, or charge refrigerant. Compatible with Amazon Alexa, Google Home, and Apple HomeKit for app-based control.
Specs: R454B refrigerant (next-gen, lower GWP), 208–230V single-phase, Energy Star certified, 16.5 SEER2 efficiency (5th Gen), 8.3 HSPF2, heats at temperatures as low as -13°F outside. The 5th Gen models use R454B, an environmentally forward refrigerant with significantly lower global warming potential than the R410a found in older units. Operates as quiet as 39 dB(A) indoors.
Mini Split Warehouse stocks the current DIY Select lineup and ships free nationwide — the same factory-warranted unit, same refrigerant, same MRCOOL manufacturer support. Our team handles pre-sale sizing questions and installation walkthroughs by phone every business day, which brand-direct and big-box stores don't offer. Add the 3% cash/check/Zelle discount and Mini Split Warehouse is the straightforward best choice for this specific unit.
DIY ADVANTAGE
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No Specialized Tools Required: Connect the system with basic hand tools—no vacuuming or brazing.
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Lower Cost: DIY installation eliminates thousands in typical installation labor expenses.
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Designed for homeowner confidence: Sealed connections maintain system integrity without handling refrigerant.
High-Performance Comfort
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Inverter Efficiency: Its advanced variable-speed inverter technology automatically scales power up or down to match your comfort needs, drastically reducing energy use compared to traditional single-stage systems.
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Whisper-Quiet Operation: Designed with noise-dampening components and an optimized fan wheel, the indoor unit operates at decibel levels as low as a quiet library, making it perfect for bedrooms and shared living spaces.
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Future-Ready Sustainability: Pre-charged with eco-friendly R-454B refrigerant, the system complies with the latest environmental standards, offering a massive reduction in Global Warming Potential (GWP) without sacrificing capacity.
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The MRCOOL DIY Select was built for homeowners who want reliable heating and cooling without the cost of professional installation. By combining proven MRCOOL® technology with simplified features, the DIY Select delivers dependable performance at a price that makes ductless comfort more accessible than ever.
2yr compressor 1 yr parts
Warranty
Online Registration: CLICK HERE
Smart Connectivity & Precision Comfort
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Control Within Reach: Transform your smartphone into a powerful climate command center. With the MRCOOL SmartHVAC app, you can adjust modes, set schedules, and monitor your DIY Select from anywhere in the world.
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Comfort That Follows You: Your comfort shouldn't be limited to where the unit is installed. By activating the Follow Me function, the included remote acts as a portable thermostat. It senses the temperature exactly where you are sitting and tells the DIY Select to adjust accordingly, ensuring your immediate space stays perfectly conditioned.
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