Enjoy precision climate control 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 + 6 K + 6 K + 12 K).
This efficient system is perfect for balanced comfort—four 6 K zones for smaller rooms and one 12 K zone for a larger area—all powered by a 36 K BTU 23 SEER2 condenser.
The best part? It’s DIY-friendly. With no vacuum pump or HVAC license required, you can save thousands on installation while achieving professional-level performance.
⚙️ Key Features
✅ Simple DIY Installation
Pre-charged Quick Connect® Line Sets filled with eco-safe R-454B refrigerant allow for easy, tool-free installation and a 100 % sealed system — no evacuation needed.
🌡️ Smart Home Control
Use the MRCOOL SmartHVAC App or voice assistants like Alexa and Google Home to set temperatures, create schedules, and manage energy use from anywhere.
💨 Discreet Ceiling Cassettes
Low-profile units mount between standard 16-inch joists, offering quiet operation and even air distribution without sacrificing ceiling space.
♻️ Energy-Efficient and Eco-Friendly
The advanced DC inverter compressor delivers up to 23 SEER2 efficiency while R-454B refrigerant reduces environmental impact and operating costs.
🔒 Reliable Performance
Protected by a 7-Year Compressor Warranty, 5-Year Parts Warranty, and optional Lifetime Coverage through the MRCOOL Care Program.
Gold Fin® coating prevents corrosion for long-term durability.
💡 Why Choose This System
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Heats & cools up to ~1,500 sq ft across 5 zones
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Mix ceiling and wall air handlers for custom layouts
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Auto, Sleep & Dry modes for personalized comfort
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Smart Wi-Fi integration with real-time alerts
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Filter reminders & quiet operation for easy maintenance
📦 What’s Included
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(1) 36 K BTU MRCOOL DIY 5th Gen Condenser
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(4) 6 K BTU Ceiling Cassettes
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(1) 12 K BTU Ceiling Cassette
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Pre-charged DIY Quick Connect Line Sets & Couplers
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Remote Controls & Installation Manuals
⚡ Technical Highlights
| Specification | 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 Supported | 5 |
| Compressor Type | DC Inverter Rotary |
| Noise Level | 64 dBA (Max) |
| Connectivity | Wi-Fi, Alexa, Google Home |
| Certifications | AHRI, ETL, Energy Star Certified |
💬 Customer Benefits
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Install yourself and save on HVAC labor costs
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Free shipping & 0 % Affirm financing available
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Quiet operation for multi-room comfort
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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 + 6 K + 6 K + 12 K) offers balanced performance, energy savings, and smart control in one complete DIY system.
Experience the comfort of professional HVAC results — without the contractor markup.
Comfort made simple. DIY done right — 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.
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Outdoor esthetics do matter.
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Create your bundle with ease.
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Authorized Dealer of Mr Cool™.
