MRCOOL DIY® 5th Gen 36,000 BTU Mini-Split Complete System 230V – Single Zone, 1,000–1,500 Sq. Ft. | DIY-36-HP-WM-230D25-O
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MRCOOL® DIY® 5th Gen 36,000 BTU Mini-Split Complete System – Single Zone, 230V
The MRCOOL® DIY® 5th Gen 36,000 BTU Complete System is the ultimate DIY solution for heating and cooling large spaces from 1,000 to 1,500 sq. ft. Everything you need is included — condenser, air handler, and a 25 ft. pre-charged QuickConnect® line set with DIYPRO® cable — so you can install it yourself without an HVAC license, vacuum pump, or professional tools. With a 213.2 ft. maximum line set length and a best-in-class 7-year compressor warranty, this system is built for large homes, open floor plans, and demanding spaces.
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 for better efficiency and a reduced environmental footprint.
- DIYPRO® Cable — Eliminates the need for electrical conduit. Built tough to withstand outdoor elements and wildlife for lasting performance.
- 213.2 ft. Max Line Set Length — Exceptional placement flexibility for large properties and complex installations.
- 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.
- Best-in-Class Warranty — 7-year compressor warranty + 5-year parts warranty for total peace of mind.
- Certified Excellence — UL Listed, ETL Listed, AHRI Certified.
Product Overview
- 🏠 Zones: 1
- 📐 Coverage: 1,000–1,500 sq. ft.
- 🔧 Installation: DIY — No Professional Required
- ⚡ Voltage: 208-230V
- ⭐ Certification: UL Listed, ETL Listed, AHRI Certified
- 🧄 Refrigerant: R-454B
What’s in the Box
- ✅ 36,000 BTU outdoor condenser (DIY-36-HP-C-230D25-O)
- ✅ Indoor wall-mount air handler (DIY-36-HP-WMAH-230D25-O)
- ✅ 25 ft. pre-charged QuickConnect® line set (3/8" x 5/8", R-454B)
- ✅ DIYPRO® cable
- ✅ Remote control
Specifications & Dimensions
| Capacity & Performance | |
|---|---|
| Cooling Capacity | 36,000 BTU |
| Heating Capacity | 36,000 BTU |
| Coverage Area | 1,000–1,500 sq. ft. |
| SEER2 | 18.0 |
| EER2 | 8.5 |
| HSPF2-4 | 8.5 |
| HSPF2-5 | 6.5 |
| Cooling Range | -13°F to 122°F outdoor |
| Heating Range | -13°F to 75°F outdoor |
| Indoor Noise (Hi/Mi/Lo) | 55.5 / 49.5 / 43.5 / 38.0 / 27.5 dB(A) |
| Outdoor Noise Level | 60.5 dB(A) |
| Electrical Requirements | |
| Voltage | 208-230V |
| Phase | 1 |
| Cycle | 60 Hz |
| Max Fuse Breaker | 35A |
| Min Circuit Ampacity | 33A |
| Refrigerant & Piping | |
| Refrigerant Type | R-454B |
| Refrigerant Volume | 109.70 oz |
| Liquid Line Size | 3/8" |
| Suction Line Size | 5/8" |
| Max Line Set Length | 213.2 ft. |
| Dimensions & Weight | |
| Condenser Dimensions | 37.24" W x 16.14" D x 31.89" H |
| Condenser Weight | 152.12 lbs |
| Air Handler Dimensions | 49.57" W x 11.10" D x 14.25" H |
| Air Handler Weight | 48.73 lbs |
| Features | |
| Inverter | DC |
| Compressor Type | Rotary |
| Fan Only Option | Yes |
| Quiet Mode | Yes |
| Auto Cool | Yes |
| WiFi Compatibility | Yes |
| App Compatibility | Yes |
| Works with iOS | Yes |
| Works with Android | Yes |
| Remote Control Included | Yes |
| Certifications & Warranty | |
| Certifications | UL Listed, ETL Listed, AHRI Certified |
| Parts Warranty | 5 Years |
| Compressor Warranty | 7 Years |
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
Frequently Asked Questions
Can I install it myself, or do I need a professional?
Yes — that’s the beauty of the MRCOOL DIY® system. The included 25 ft. pre-charged QuickConnect® line set means no vacuum pump or HVAC certification is needed. The only professional you’ll need is a licensed electrician for the electrical hookup.
Does it work in cold weather?
Absolutely. This unit heats reliably down to -13°F and cools down to -13°F outdoor — making it suitable for year-round use in virtually any climate.
What is the maximum line set length?
The maximum line set length is 213.2 ft., giving you exceptional flexibility in placing the condenser away from the air handler — ideal for large homes and complex layouts.
Is it Wi-Fi compatible?
Yes. Control your system from anywhere using the MRCOOL SmartHVAC app. It also works with Amazon Alexa and Google Assistant for hands-free voice control.
What is the warranty?
Your purchase is backed by MRCOOL’s best-in-class warranty:
- 7-Year Compressor Warranty
- 5-Year Parts Warranty
Recommended BTU By Room Size
| BTU Capacity | Recommended Room Size (Sq. Ft.) |
|---|---|
| 9,000 BTU | 151–350 sq. ft. |
| 12,000 BTU | 351–500 sq. ft. |
| 18,000 BTU | 501–750 sq. ft. |
| 24,000 BTU | 751–1,000 sq. ft. |
| 36,000 BTU ← You Are Here | 1,000–1,500 sq. ft. |
Note: Actual performance may vary depending on room insulation, ceiling height, number of windows, climate zone, and heat-generating appliances.
