Balance comfort across five rooms with the MRCOOL DIY 5th Gen 36 K BTU 5-Zone Ductless Mini Split System with Ceiling Cassettes (6 K + 6 K + 9 K + 9 K + 12 K).
This high-efficiency HVAC system offers customized zoning, whisper-quiet operation, and true DIY installation with no special tools or professional help required.
It includes:
-
Two 6 K BTU cassettes (~250 sq ft each)
-
Two 9 K BTU cassettes (~375 sq ft each)
-
One 12 K BTU cassette (~500 sq ft)
All powered by a 36 K BTU 23 SEER2 condenser delivering precise temperature control for reliable comfort throughout the year.
⚙️ Key Features
✅ Fast & Simple DIY Installation
Connect pre-charged Quick Connect® line sets filled with R-454B refrigerant—no vacuum pump or licensed technician required.
🌡️ Smart Controls & Voice Integration
Adjust temperatures, monitor usage, and set schedules through the MRCOOL SmartHVAC App or with Alexa and Google Home voice commands.
💨 Discreet Ceiling Cassettes
Low-profile indoor units install between 16-inch joists, offering quiet airflow and a modern, unobtrusive look.
♻️ Energy Efficient & Eco-Friendly
Advanced DC inverter technology and R-454B refrigerant deliver up to 23 SEER2 efficiency for lower utility costs and a smaller carbon footprint.
🔒 Built to Last
Protected by a 7-Year Compressor Warranty, 5-Year Parts Warranty, and optional Lifetime Replacement Coverage through MRCOOL Care.
💡 Why Choose MRCOOL DIY
-
Covers ~1,500 sq ft with 5 zones
-
Mix ceiling and wall air handlers as needed
-
Auto, Sleep & Dry modes for personalized comfort
-
App & Wi-Fi integration for anywhere control
-
Quiet operation with filter reminders and self-diagnostics
📦 Included
-
(1) 36 K BTU MRCOOL DIY 5th Gen Condenser
-
(2) 6 K BTU Ceiling Cassettes
-
(2) 9 K BTU Ceiling Cassettes
-
(1) 12 K BTU Ceiling Cassette
-
Pre-charged DIY Quick Connect Line Sets & Couplers
-
Remotes & installation manuals
⚡ Technical Highlights
| Spec | Value |
|---|---|
| Cooling Capacity | 34 000 BTU |
| Heating Capacity | 36 000 BTU |
| Voltage | 208/230 V Single Phase |
| Refrigerant | R-454B |
| SEER2 / HSPF2-4 | 23 / 9.9 |
| Zones | 5 |
| Compressor | DC Inverter Rotary |
| Noise Level | 64 dBA |
| Connectivity | Wi-Fi, SmartHVAC App, Alexa, Google Home |
| Certifications | AHRI, ETL, Energy Star |
💬 Customer Benefits
-
DIY installation = save thousands on labor
-
0 % financing through Affirm
-
Free shipping nationwide
-
Lifetime technical support from MRCOOL
🏁 The DIY Comfort Solution
The MRCOOL DIY 5th Gen 36 K BTU 5-Zone Mini Split (6 K + 6 K + 9 K + 9 K + 12 K) is perfect for mixed-size spaces that need precise climate control in every room. Enjoy smart comfort, energy savings, and simple installation—all without hiring a pro.
Your home, your comfort — powered by this retailer.
Shipping Policy
Free Standard Shipping
We offer free standard shipping on all orders. Orders are processed within 1–2 business days and typically arrive within 5–7 business days.
Expedited Shipping
Expedited shipping options are available at checkout. Expedited orders placed before 12pm EST ship the same business day.
Order Tracking
Once your order ships you will receive a confirmation email with a tracking number. You can track your shipment at any time through our website or the carrier's portal.
International Shipping
We currently ship within the United States only. International shipping is not available at this time.
Return Policy
30-Day Returns
We accept returns within 30 days of delivery. Items must be unused, in their original packaging, and in the same condition as received.
How to Initiate a Return
Contact our support team at sales@homecrucial.com with your order number and reason for return. We will provide a prepaid return label within 1–2 business days.
Refunds
Refunds are processed within 5–7 business days after we receive the returned item. The refund will be issued to your original payment method.
Non-Returnable Items
Items that have been installed, used, or damaged after delivery are not eligible for return.
Warranty
Manufacturer's Warranty
All products sold at Home Crucial are covered by the manufacturer's warranty. Warranty terms vary by brand and product — please refer to the documentation included with your product for specific details.
What Is Covered
Manufacturer warranties typically cover defects in materials and workmanship under normal use and conditions. Coverage does not include damage caused by misuse, improper installation, or normal wear and tear.
Warranty Claims
To initiate a warranty claim, contact us at sales@homecrucial.com with your order number, a description of the issue, and photos if applicable. We will coordinate with the manufacturer on your behalf.
Extended Protection
Extended warranty and protection plans may be available for select products. Contact us for more details.
Customer Reviews
★★★★★ 4.9 out of 5 · 20 reviews
High-efficiency 5th Gen ENERGY STAR® rated DIY mini split heat pumps.
-
Outdoor esthetics do matter.
-
Create your bundle with ease.
-
Authorized Dealer of Mr Cool™.
