Quick answers to questions about ordering, compatibility, and installation.
Customize comfort in every room with the MRCOOL DIY 5th Gen 36 K BTU 4-Zone Ductless Mini Split System with Ceiling Cassettes (6 K + 12 K + 12 K + 12 K).
Designed for easy, do-it-yourself installation, this system efficiently heats and cools four separate zones—no HVAC contractor required.
Zone coverage:
1 × 6 K BTU cassette (~ 250 sq ft)
3 × 12 K BTU cassettes (~ 500 sq ft each)
All powered by a 36 K BTU 23 SEER2 inverter condenser, giving you reliable, energy-smart comfort all year long.
Pre-charged Quick Connect® Line Sets with eco-safe R-454B refrigerant eliminate vacuum pumps and specialized tools. Simply connect, tighten, and power up.
Monitor and manage your home from anywhere using the MRCOOL SmartHVAC App, or control hands-free with Alexa and Google Home.
Low-profile design fits between 16-inch joists for quiet, even airflow and a sleek, modern appearance.
Advanced DC inverter technology paired with R-454B refrigerant delivers exceptional efficiency while lowering environmental impact.
Backed by a 7-Year Compressor Warranty, 5-Year Parts Warranty, and optional Lifetime Coverage through MRCOOL Care. Gold Fin® coating prevents corrosion and extends system life.
Perfect for homes up to ≈ 1,400 sq ft
Quiet, discreet design for multi-room comfort
Auto, Sleep & Dry modes for custom climate control
Wi-Fi & voice integration for smart living
Filter reminders and self-diagnostics for easy maintenance
(1) 36 K BTU MRCOOL DIY 5th Gen Condenser
(1) 6 K BTU Ceiling Cassette
(3) 12 K BTU Ceiling Cassettes
Pre-charged DIY Quick Connect Line Sets & Couplers
Remotes & Installation Manuals
| 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 | 4 |
| Compressor Type | DC Inverter Rotary |
| Noise Level | 64 dBA (Max) |
| Connectivity | Wi-Fi, Alexa, Google Home |
| Certifications | AHRI, ETL, Energy Star Certified |
DIY install saves thousands on HVAC labor
Free shipping & 0 % Affirm financing
Lifetime technical support from MRCOOL
Year-round comfort with smart control
The MRCOOL DIY 5th Gen 36 K BTU 4-Zone Mini Split (6 K + 12 K + 12 K + 12 K) delivers powerful, efficient heating and cooling for four rooms with a straightforward, DIY-friendly setup.
Enjoy professional-grade comfort, energy savings, and modern smart features without hiring a contractor.
Simple to install. Smart to own. Only from MRCOOL DIY Direct.
Quick answers to questions about ordering, compatibility, and installation.
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
Get help with ordering, compatibility, or installation questions.
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