Designed with homeowners in mind, the MRCOOL® DIY® 5th Generation 24,000 BTU Ductless Mini-Split makes professional-grade HVAC accessible—no specialized tools or prior experience required. Ideal for spaces up to 1,050 sq. ft., this high-efficiency 22.7 SEER2 heat pump system provides dependable cooling and heating all year round.

Thanks to the 25-foot pre-charged QuickConnect® line set, installation is simple, secure, and vacuum-free. The system uses eco-conscious R-454B refrigerant and includes the rugged DIYPRO® cable, which replaces traditional conduit to protect electrical connections from outdoor elements and wildlife.

You can easily manage your comfort with the included remote control, the SmartHVAC app (iOS/Android), or hands-free voice commands using Amazon Alexa or Google Assistant. The air handler's Follow Me® feature ensures the temperature is adjusted based on the remote’s location for more personalized control.

For added durability in coastal or high-humidity regions, the condenser features Gold Fin® anti-corrosion coating. The unit also includes built-in Dry Mode for moisture reduction and Auto Restart to resume operation after a power outage.

The MRCOOL® DIY® 24k system is backed by an industry-leading warranty, including limited lifetime coverage, a 7-year compressor warranty, and a 5-year parts warranty. Engineered for energy efficiency, durability, and DIY convenience, this mini-split system is ideal for larger living spaces and open layouts.

Key Features

• True DIY Installation – No HVAC experience or special tools required. QuickConnect® line set makes setup fast and simple.

• High Efficiency Performance – Rated at 22.7 SEER2 and 9.6 HSPF2-4 for reliable comfort with energy savings.

• Smart Control Integration – Operate the system via remote, SmartHVAC app, or voice commands with Amazon Alexa and Google Assistant.

• Gold Fin® Corrosion Protection – Protects the condenser from salt and moisture damage, extending system life in harsh environments.

• Durable DIYPRO® Cable – Replaces traditional conduit, offering enhanced protection against outdoor elements and pests.

• Follow Me® Function – The system adjusts airflow based on the remote’s location for precise temperature control.

• Dry Mode – Removes excess humidity to improve air quality and comfort.

• Auto Restart – Automatically resumes operation with previous settings after power interruptions.

• Quiet Operation – Designed for low noise output, making it suitable for bedrooms and shared living spaces.

• Backed by Industry-Leading Warranty – Includes a limited lifetime warranty, 7-year compressor warranty, and 5-year parts warranty.

Specifications

• Brand: MRCOOL®

• Series: DIY 5th Generation

• Product Type: Single-Zone Ductless Mini-Split Heat Pump

• Voltage: 208–230V, 1 Phase, 60 Hz

• SEER2 Rating: 22.7

• EER2 Rating: 12.7

• HSPF2-4 Rating: 9.6

• HSPF2-5 Rating: 7.1

• Cooling Capacity: 23,000 BTU

• Heating Capacity: 23,000 BTU

• Coverage Area: Up to 1050 sq. ft.

• Compressor Type: Rotary

• Fan Speeds: Variable

• Refrigerant Type: R-454B (pre-charged)

• Refrigerant Volume: 67.37 oz

• Line Set Length: 25 ft.

• Max Line Set Length: 164 ft.

• Liquid Line Size: 3/8"

• Suction Line Size: 5/8"

• Air Handler Dimensions (WxDxH): 42.52” x 8.90” x 13.19”

• Air Handler Weight: 35.49 lbs

• Air Handler Noise Level (Hi/Mi/Lo/Si): 54.0 / 48.0 / 43.0 / 33.5 / 20.0 dB(A)

• Condenser Dimensions (WxDxH): 37.24” x 16.14” x 31.89”

• Condenser Weight: 112.8 lbs

• Condenser Noise Level: 58.5 dB(A)

• Control Options: Remote, SmartHVAC App, Amazon Alexa, Google Assistant

• Low Ambient Cooling: Down to 5°F

• Certifications: UL Listed, ETL Listed, Energy Star Certified, AHRI Certified

• Warranty:
  

  • Parts: 5 Years
    

  • Compressor: 7 Years
    

  • Extended Limited Lifetime Replacement: Available with MRCOOL® Care Program registration
    

• Environmentally Friendly: Yes – R-454B low-GWP refrigerant
  

• Auto Restart: Yes
  

• Dry Mode: Yes
  

• Timer Function: Yes
  

• Indoor Display: Yes
  

• Indoor Unit Finish: Glossy white
  

• Warranty Registration Required: Yes
  

BTU Size Chart

Which BTU rating should I choose?

• The appropriate BTU rating depends on the size of the space you need to heat or cool.
• A higher BTU indicates greater heating and cooling capacity, allowing the air handler to effectively condition larger areas.

*Ceiling height, insulation quality, and local climate can all affect the actual coverage area. For instance, an uninsulated space will need more BTUs to maintain comfort compared to a well-insulated room.

Shipping & Returns

Shipping Policy

• Free Shipping on All Orders – We provide free standard delivery on all orders within the contiguous U.S.

• Ground Shipping for Smaller Items – Accessories and lighter products ship via standard ground carriers such as FedEx, UPS, or similar.

• Freight Delivery – Large items (HVAC/Heaters) ship via LTL freight. Drivers deliver to the curbside only; they cannot bring items into your home or garage.

• Tracking Information – Tracking is typically provided within 1 business day once your order ships.

• Carrier Updates – Once tracking is issued, allow 1–2 business days for the carrier to populate shipment details.

• More Information – Full details can be found on our Shipping Policy page.

Return Policy

• 30-Day Return Window – Return requests must be submitted within 30 days of delivery; requests after this period cannot be accepted.

• Inspect Upon Delivery – Visible damage must be noted on the driver's paperwork. Report all damage within 24 hours to qualify for a replacement.

• Return Condition Requirements – Items must be unused, uninstalled, and in original packaging, including all boxes, crates, or pallets.

• Restocking Fees – Restocking fees of 25–35% apply to most brands; see full policy for details.

• Non-Returnable Items – Accessories, small components (remotes, line sets), and custom-finish items are non-returnable.

• Full Details – See our Return & Refund Policy page for complete guidelines.