MRCOOL DIY® 9,000 BTU 5th Gen Mini-Split Heat Pump 115V – Single Zone, Up to 350 Sq. Ft.
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MRCOOL® DIY® 9,000 BTU 5th Gen Ductless Mini-Split Heat Pump – Single Zone
The MRCOOL® DIY® 9,000 BTU 5th Generation Ductless Mini-Split Heat Pump is a powerful, energy-efficient HVAC solution for heating and cooling rooms up to 350 sq. ft. Designed for easy DIY installation, it's ideal for bedrooms, home offices, basements, garages, and more. No professional tools, vacuum pump, or HVAC license required.
Why Choose MRCOOL DIY® 5th Gen?
- America's #1 DIY Mini Split — The most trusted DIY mini split brand in the nation, built for quick setup and long-term reliability.
- DIY QuickConnect® Line Set — Pre-charged with eco-friendly R-454B refrigerant for a fast, vacuum-free installation — no special tools needed.
- Eco-Friendly R-454B Refrigerant — Lower Global Warming Potential (GWP) than R-410A, delivering better energy efficiency with a reduced environmental footprint.
- DIYPRO® Cable — Eliminates the need for electrical conduit. Built tough to withstand outdoor elements and wildlife for lasting performance.
- Multiple Wireless Control Options — Control via included remote, the SmartHVAC app (iOS & Android), or hands-free with Amazon Alexa or Google Assistant.
- Follow Me Function — Airflow automatically adjusts based on the remote's location for consistent, even temperature throughout the room.
- Dry Mode — Works as a dehumidifier to reduce excess moisture and improve indoor air quality.
- Gold Fin® Condenser Coating — Superior corrosion resistance, ideal for coastal homes and harsh climates.
- Industry-Leading Warranty — 7-year compressor warranty + 5-year parts warranty for total peace of mind.
- Certified Excellence — UL Listed, ETL Listed, ENERGY STAR Certified, AHRI Certified.
Product Overview
- 🏠 Covers: Up to 350 sq ft.
- 🔧 Installation: DIY — No Professional Required
- ⭐ Certification: ENERGY STAR Certified
- ⚡ Voltage: 115V
Control your comfort from anywhere using the SmartHVAC app, remote control, Amazon Alexa, or Google Assistant. The Follow Me® function intelligently adjusts airflow based on your location for personalized comfort throughout the room.
The Gold Fin® condenser helps resist corrosion and extends system life, even in coastal or humid environments. Dry Mode also helps reduce indoor humidity for improved comfort and air quality. Backed by a 7-year compressor warranty and 5-year parts warranty, this system is built to last.
Technical Specifications
| Specification | Details |
|---|---|
| System Tonnage | 0.75 Tons |
| Voltage | 115V |
| Phase | Single Phase |
| Frequency | 60 Hz |
| Maximum Fuse/Breaker Size | 15 Amps |
| Minimum Circuit Ampacity | 3 Amps |
| Mount Type | Wall-Mounted |
| Color | White |
| Maximum Coverage Area | Up to 350 Sq. Ft. |
| Sound Level (Low) | 18 dBA |
| Sound Level (High) | 43 dBA |
| Fan Speeds | 5-Speed Fan |
| Oscillation Function | Yes |
| Liquid Line Size | 1/4 Inch |
| Suction Line Size | 3/8 Inch |
| Filter Type | Washable & Reusable |
| Fan-Only Mode | Yes |
| Quiet Operation Mode | Yes |
| Auto Cooling Mode | Yes |
| Wi-Fi Enabled | Yes |
| Mobile App Compatible | Yes |
| iOS Compatible | Yes |
| Android Compatible | Yes |
| Remote Control Included | Yes |
| UL Certified | Yes |
| ETL Listed | Yes |
| Energy Star Certified | Yes |
| AHRI Certified | Yes |
| Registered Warranty | Extended Limited Lifetime* |
| Base Parts Warranty | 5 Years |
| Base Compressor Warranty | 7 Years |
Unit Dimensions
| Type | Width (in) | Depth (in) | Height (in) | Weight (lbs) |
|---|---|---|---|---|
| Net (Installed) | 31.57 | 7.44 | 11.69 | 24.91 |
| Gross (Packaged) | 36.02 | 16.34 | 14.37 | — |
Installations & Manuals
📄 MRCOOL DIY Series 5 Brochure (PDF)
Shipping & Returns
🚚 Free Curbside Delivery
All MRCOOL orders ship free via FedEx Ground, FedEx Freight, or an equivalent trusted carrier. Delivery is curbside only — please arrange assistance in advance as carriers are not able to bring items inside your home.
Tracking & Delivery
Tracking information is typically provided within 3–5 business days of your order. Once received, please allow 1–2 business days for tracking details to update.
↩️ Return Policy
30-Day Return Window
Returns must be requested within 30 days of your delivery date. We are unable to accept return requests after this period.
Return Conditions
To qualify for a return, items must be unused and uninstalled, and in original packaging including box and pallet.
Restocking Fee
A 35% restocking fee applies to all approved returns.
📄 View Full Shipping Policy | 📄 View Full Return & Refund Policy
Recommended BTU By Room Size
| BTU Capacity | Recommended Room Size (Sq. Ft.) |
|---|---|
| 9,000 BTU | 180 – 375 sq. ft. |
| 12,000 BTU | 376 – 500 sq. ft. |
| 18,000 BTU | 501 – 750 sq. ft. |
| 24,000 BTU | 751 – 1,000 sq. ft. |
| 36,000 BTU | 1,001 – 1,500 sq. ft. |
Note: Actual performance may vary depending on room insulation, ceiling height, number of windows, climate zone, and heat-generating appliances.
