Description: Experience year-round comfort and energy savings with the MRCOOL DIY 4th Gen Multi-Zone Mini Split System. This innovative system is perfect for homeowners who want efficient, customizable climate control without the need for professional installation. The 18,000 BTU condenser supports two independent zones, pairing seamlessly with a 9K BTU air handler for smaller spaces and a 12K BTU air handler for mid-sized rooms. With smart controls, robust all-weather performance, and a DIY-friendly setup, this system is designed for modern living.
18K BTU Condenser
Exceptional Energy Efficiency:Delivers up to 21.2 SEER2 when paired with select MRCOOL air handlers, ensuring significant energy savings.
All-Weather Performance:Reliable operation even in extreme cold, with heating capability down to -13°F.
Unmatched Warranty:7-year compressor replacement and 5-year parts warranty when registered through the MRCOOL Care Program.
9K BTU Air Handler
Ideal for Smaller Spaces:Perfect for rooms up to 375 sq. ft.
Multi-Mode Functionality:Offers COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP modes for flexible comfort.
Smart Control:Manage settings from your Apple or Android device via the Smart HVAC app.
Effortless Installation:Lightweight, compact design with included wall mounting plate for easy DIY setup.
12K BTU Air Handler
Optimal for Mid-Sized Spaces:Effectively controls climate in rooms up to 500 sq. ft.
Versatile Operation:Features COOL, HEAT, AUTO, DRY, and SLEEP modes for year-round comfort.
Smart Connectivity:Full control from anywhere through the Smart HVAC app.
Hassle-Free Setup:Compact design and included mounting plate for quick installation.
16 ft. Pre-Charged Line Set
Quick & Reliable Connection:Seamlessly links condenser and air handlers.
Pre-Charged Convenience:Arrives pre-filled with R-410A refrigerant—no need for professional charging.
DIY Installation:No certified technician required, saving you time and money.
Additional Line Sets & Coupler Kits
Flexible Installation:Additional line sets and coupler kits available for purchase to extend reach and customize your setup for unique space requirements.
The MRCOOL DIY 4th Gen Multi-Zone Mini Split System combines advanced technology, energy efficiency, and user-friendly installation—making it the ideal solution for tailored home comfort in any season.
SPECIFICATIONS & DIMENSIONS
Condenser
Product Dimension
35.04"W x 13.46"D x 26.50"H
Cooling Capacity
18,000 BTU
Heating Capacity
19,000 BTU
Zone Capacity
2
Outdoor Operating Temp (Cool)
5°F to 122°F
Outdoor Operating Temp (Heat)
-13°F to 75.2°F
SEER
21
SEER2
21.2
EER
12.5
EER2
12.5
HSPF-4
10.6
HSPF-5
8.6
Voltage
Requires a minimum of 208V-230V/60HZ/18-25A (please check your home meets this electrical requirement prior to purchase)
Registered Warranty
7 Years Replacement on Compressor, 5 Years Parts
Air Handler 9K BTU
Product Dimensions
31.57"W x 7.44"D x 11.69"H
Mount Type
Wall
Cooling Capacity
9,000 BTU
Heating Capacity
9,000 BTU
Modes
Auto - auto selects from Cool, Heat or Fan-Only Dry - dehumidify Cool Heat Fan Only Quiet Sleep
Registered Warranty
5 Years Parts
Air Handler 12K BTU
Product Dimensions
31.57"W x 7.44"D x 11.69"H
Mount Type
Wall
Cooling Capacity
12,000 BTU
Heating Capacity
12,000 BTU
Registered Warranty
5 Years Parts
Modes
Auto - auto selects from Cool, Heat or Fan-Only Dry - dehumidify Cool Heat Fan Only Quiet Sleep
Frequently Asked Questions About MRCOOL DIY 4th Gen 2 Zone- 18,000 BTU Outdoor Unit 21 SEER2 (9K+12K) Ductless Mini Split and Heat Pump with 16ft. Install Kit.
Most Frequently Asked Questions
Other Questions
Product Overview
Zone / ROOM:
2 Zone
Air Handler BTU:
9k + 12k
Coverage Area:
875 sq.ft
Condenser BTU:
18k
Outdoor Operating Temp (Cool/ heat):
-13°F to 75.2°F for heat | 5°F to 122°F for cool
Warranty
7 Years Replacement on Compressor, 5 Years Parts
MRCOOL DIY 4th Gen 2 Zone- 18,000 BTU Outdoor Unit 21 SEER2 (9K+12K) Ductless Mini Split and Heat Pump with 16ft. Install Kit. Reviews
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