MRCOOL DIY® 5th Gen Energy Star 24,000 BTU Mini-Split Complete System 230V – Single Zone, 750–1,000 Sq. Ft. | DIY-24-HP-WM-230D25-O
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MRCOOL® DIY® 5th Gen Energy Star 24,000 BTU Mini-Split Complete System – Single Zone, 230V
The MRCOOL® DIY® 5th Gen Energy Star 24,000 BTU Complete System is the premium choice for heating and cooling spaces from 750 to 1,000 sq. ft. with industry-leading efficiency. Featuring a 22.7 SEER2 rating and Energy Star certification, this system delivers exceptional performance while keeping energy bills low. With the included 25 ft. pre-charged QuickConnect® line set and DIYPRO® cable, installation is fully DIY — no HVAC license, vacuum pump, or professional tools required.
Why Choose MRCOOL DIY® 5th Gen Energy Star?
- America’s #1 DIY Mini Split — The most trusted DIY mini split brand in the nation, built for quick setup and long-term reliability.
- 22.7 SEER2 — Premium Efficiency — One of the highest efficiency ratings in the DIY mini split category, delivering significant energy savings year over year.
- Energy Star Certified — Meets strict EPA energy efficiency guidelines — may qualify for federal tax credits and utility rebates.
- 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.
- 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, Energy Star Certified.
Product Overview
- 🏠 Zones: 1
- 📐 Coverage: 750–1,000 sq. ft.
- 🔧 Installation: DIY — No Professional Required
- ⚡ Voltage: 208-230V
- 🌿 Energy Star Certified — May qualify for federal tax credits & utility rebates
- ⭐ Certification: UL Listed, ETL Listed, AHRI Certified, Energy Star Certified
- 🧄 Refrigerant: R-454B
What’s in the Box
- ✅ 24,000 BTU outdoor condenser (DIY-24-HP-C-230D25-O)
- ✅ Indoor wall-mount air handler (DIY-24-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 | 23,000 BTU |
| Heating Capacity | 23,000 BTU |
| Coverage Area | 750–1,000 sq. ft. |
| SEER2 | 22.7 |
| EER2 | 12.7 |
| HSPF2-4 | 9.6 |
| HSPF2-5 | 7.1 |
| Cooling Range | -13°F to 122°F outdoor |
| Heating Range | -13°F to 75°F outdoor |
| Indoor Noise (Hi/Mi/Lo) | 54.0 / 48.0 / 43.0 / 33.5 / 20.0 dB(A) |
| Outdoor Noise Level | 58.5 dB(A) |
| Electrical Requirements | |
| Voltage | 208-230V |
| Phase | 1 |
| Cycle | 60 Hz |
| Max Fuse Breaker | 25A |
| Min Circuit Ampacity | 24A |
| Refrigerant & Piping | |
| Refrigerant Type | R-454B |
| Refrigerant Volume | 67.37 oz |
| Liquid Line Size | 3/8" |
| Suction Line Size | 5/8" |
| Max Line Set Length | 164 ft. |
| Dimensions & Weight | |
| Condenser Dimensions | 37.24" W x 16.14" D x 31.89" H |
| Condenser Weight | 112.8 lbs |
| Air Handler Dimensions | 42.52" W x 8.90" D x 13.19" H |
| Air Handler Weight | 35.49 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, Energy Star 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
What’s the difference between this and the standard 5th Gen DIY system?
This Energy Star model features a significantly higher 22.7 SEER2 efficiency rating (vs. 18.9 SEER2 on the standard model), a larger condenser unit, and a longer 7-year compressor / 5-year parts warranty. It also carries Energy Star certification, which may qualify you for federal tax credits and utility rebates.
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 — making it suitable for year-round use in virtually any climate.
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.
Does this qualify for tax credits or rebates?
As an Energy Star certified system, this unit may qualify for the federal Residential Clean Energy Credit or utility-sponsored rebate programs. We recommend checking with your local utility provider and a tax professional for eligibility details.
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 ← You Are Here | 750–1,000 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.
