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Today's Hours 8am - 11pm estMRCOOL 18,000 BTU DIY 5th Gen 23.9 SEER2 2 Zone Wall Mount Mini Split Heat Pump System R454B | 230V 12 + 12
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By
MRCOOL
In stock
Model
DIY-MULTI3-18HP230 / DIY-12-HP-WMAH-230-2
ID
206692
Was $3,226.30
Your Low Price $2,933.00
Product Features
- 18,000 BTU For Up To 750 Sq Ft
- Designed For Spaces Up To 750 Sq Ft
- Energy-Efficient Comfort With 23.9 SEER2
- Built For Long-Term Performance
- Comfort Designed For Everyday Use
- Cooling Performance Up To 122°F
MRCOOL DIY 5th Gen 18,000 BTU 2 Zone Ductless Heat Pump Split System (12,000 + 12,000 BTU)
The MRCOOL DIY 5th Gen 18,000 BTU 2 Zone Ductless Heat Pump Split System is designed to provide efficient, customizable comfort for two medium-to-large spaces. With two powerful 12,000 BTU wall-mounted indoor units, this system is perfect for living rooms, large bedrooms, home offices, or open-plan areas. Engineered for true do-it-yourself installation, it combines performance, flexibility, and smart control without the cost of professional HVAC labor.
Top Features
- Dual 12,000 BTU Indoor Units: Ideal for two spacious rooms, each unit operates independently for precise temperature control and personal comfort.
- High-Capacity 18,000 BTU Outdoor Condenser: Efficiently powers both zones using variable-speed inverter technology to maintain consistent performance and energy savings.
- Smart Operation: Compatible with the MRCOOL SmartHVAC app, Amazon Alexa, and Google Assistant for remote or voice-controlled operation.
- Energy Efficient: High SEER2 rating and inverter-driven compressor reduce energy usage while delivering reliable heating and cooling.
- Quiet Performance: Designed for low sound levels in both indoor and outdoor components, ensuring quiet comfort in living or working areas.
- Gold Fin Anti-Corrosion Protection: Outdoor unit is coated with a durable finish to resist corrosion in coastal or humid environments.
- Leak Detection System: Integrated sensors alert the user to refrigerant loss, protecting the system from damage and maintaining efficiency.
Comfort Year-Round
This MRCOOL 2-Zone heat pump system delivers dependable performance in all seasons, cooling effectively down to 5 F and heating efficiently down to -13 F. Its an excellent choice for maintaining ideal comfort in two large spaces, no matter the weather conditions.
Package Includes
- One 18,000 BTU Outdoor Condenser
- Two 12,000 BTU Wall-Mounted Indoor Units
- Two Wireless Remote Controls
- Smart Controller Module
- Installation Accessories and User Manuals
Why Choose the MRCOOL 5th Gen 12K + 12K 2 Zone System?
For homeowners looking to condition two large rooms without invasive ductwork or the expense of professional installation, the MRCOOL DIY 5th Gen 2 Zone System with dual 12,000 BTU units is the ideal solution. With smart features, efficient operation, and true DIY capability, it delivers high-performance comfort thats easy to install and control on your terms. These bundles require the purchase of a Pre-Charged Line Set, these are not included.
18,000 BTU MRCOOL 3 Zone Condenser - R454B
MRCOOL 18k DIY 5th Generation 3 Zone Multi-Zone Mini-Split Condenser 230v
The MRCOOL® DIY-MULTI3-18HP230D-O is a revolutionary 18,000 BTU 5th Generation 3 Zone Multi-Zone Mini-Split Condenser that brings you the power to customize comfort across multiple rooms with the convenience of DIY installation. Designed for compatibility with up to three separate indoor air handlers, this system delivers efficient and quiet operation for spaces of varying sizes.
Key Features
- DIY Installation: Designed for easy installation without the need for special tools or HVAC expertise.
- Flexible Zoning: Supports up to three zones, allowing for tailored temperature control in multiple areas of your home or office.
- High Efficiency: Boasts a SEER2 rating of up to 23.9, ensuring energy savings and optimal performance year-round.
- Inverter Technology: Variable-speed DC inverter provides precise temperature control and minimizes energy use by adjusting output to demand.
- Smart Home Integration: Includes compatibility with Alexa and Google Assistant for voice-controlled convenience.
- Corrosion Resistance: Gold Fin® coating provides long-lasting protection against salt air and environmental elements.
- Low Ambient Cooling: Capable of cooling in temperatures as low as 5°F, making it suitable for a wide range of climates.
Performance & Specifications
- Cooling Capacity: 18,000 BTU
- Heating Capacity: 18,000 BTU
- Voltage: 230V
- Zone Capability: Up to 3 zones
- SEER2: Up to 23.9
- EER2: Up to 12.5
- HSPF2 (Region IV): Up to 10.5
Additional Benefits
- Quiet Operation: Engineered for ultra-quiet performance, reducing ambient noise indoors and outdoors.
- Warranty Protection: Backed by a limited lifetime compressor warranty and 7-year parts coverage for peace of mind.
- Environmentally Friendly: Utilizes R-454B refrigerant for safe, efficient operation with reduced environmental impact.
The MRCOOL 18k DIY 3 Zone Condenser is the ideal solution for homeowners seeking zoned comfort without professional installation. Its energy efficiency, advanced features, and simple setup make it a standout choice for year-round indoor climate control.
12,000 BTU MRCOOL DIY 5th Generation Wall Mount Air Handler – R454B
MRCOOL® 12k DIY 5th Generation Mini-Split Air Handler 230v
The MRCOOL® 12k DIY 5th Generation Mini-Split Air Handler is an efficient, user-friendly solution for heating and cooling medium-sized spaces. With a capacity of 12,000 BTU and a 230-volt configuration, this air handler is part of the innovative MRCOOL® DIY series, designed for fast installation without specialized HVAC tools or training. Ideal for homeowners looking to upgrade their comfort without added labor costs, it combines smart technology with dependable performance.
Key Features:
- DIY-Friendly Installation
- Efficient Performance: High SEER2 efficiency helps reduce energy bills while maintaining reliable comfort all year long.
- Smart Controls: Compatible with the MRCOOL® SmartHVAC app, as well as Alexa and Google Assistant, for remote operation and scheduling.
- Low Noise Operation: Engineered for quiet performance, making it perfect for bedrooms, offices, and other quiet zones.
- Versatile Functionality: Supports cooling, heating, fan-only, and dehumidification modes to suit any seasonal need.
- Auto Restart and Sleep Mode: Automatically resumes with previous settings after power outages and adjusts temperatures overnight for energy savings.
- Wall-Mounted Design: Sleek and compact unit fits easily into most interior layouts without taking up valuable floor space.
Specifications:
- Model Number: DIY-12-HP-WMAH-230D25-O
- Voltage: 230V
- Cooling/Heating Capacity: 12,000 BTU
- Refrigerant: R-454B
- Mounting Style: Wall-mounted
The MRCOOL® 12k DIY Air Handler delivers the performance and features you need to efficiently control your home’s climate without the complexity of traditional HVAC systems. Ideal for bedrooms, living rooms, and other medium-sized spaces, this unit blends technology, convenience, and cost-saving efficiency into one smart package.
16ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
DIY16-1438-O 16ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor - R454B
The MRCOOL DIY16-1438-O is a pre-charged 16-foot line set designed specifically for MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. It is engineered to simplify installation for homeowners and HVAC professionals alike, while maintaining efficiency and refrigerant integrity without the need for vacuuming or charging.
This lineset offers a flexible, durable, and easy-to-connect solution that supports the revolutionary MRCOOL DIY ductless mini-split systems. The Quick Connect® fittings provide a secure and tight seal, ensuring a hassle-free installation and long-term reliability.
Key Features:
- Length: 16 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with environmentally friendly R-454B
- Compatibility: Designed for use with MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for fast, tool-free installation
- Insulation: High-quality insulation for efficient thermal performance and reduced energy loss
- Corrosion Resistance: Durable construction resists environmental wear and corrosion
This lineset is ideal for both first-time installations and replacements, ensuring optimal performance and easy integration with compatible MRCOOL® systems. With a 100% DIY approach, this component allows users to complete professional-level installations without special tools or equipment.
17" Wall Mount Bracket for Mini Split Systems
This wall mount bracket is perfect for outdoor mini split condensers. The length of the the wall bracket arms are 17” long. The condensing unit is mounted onto the L-shaped brackets and fastened using the bolts and anti-vibration washers provided.
Features:- 17” Arm Length
- Weight capacity of 220 lbs per arm
- Bolts and anti-vibration washers included
No Return Policy
All sales of this product are final and are non-refundable.
Installation Kit for Condensers
Ensure a professional and secure installation for your condenser with this comprehensive installation kit. Designed to provide all the essential components needed for a smooth setup, this kit helps protect your system while ensuring proper electrical and refrigerant connections.
What’s Included:
- 3/4" x 6' Electrical Whip – SKU: 84138
- 60A Non-Fused Disconnect – SKU: 83335
- Surge Protector – SKU: ICM517
- CPS Charging Adapter – SKU: 87-AD87
- Telescoping Wall Sleeve – SKU: NFP-75
Equip your condenser with everything needed for a safe, durable, and professional installation. Order your Condenser Installation Kit today!
25ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor - R454B
DIY25-1438-O 25ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor - R454B
The MRCOOL DIY25-1438-O is a 25-foot pre-charged line set engineered for easy installation with MRCOOL DIY 6K, 9K, and 12K indoor units that utilize R-454B refrigerant. This lineset offers an efficient, mess-free solution for both homeowners and professionals who want a clean and secure HVAC connection without the need for vacuum pumps or refrigerant handling.
Equipped with Quick Connect fittings, this lineset simplifies the installation process by providing a tight, reliable seal—eliminating the need for special tools. The pre-charged refrigerant lines and durable insulation deliver excellent performance and energy efficiency in a wide range of settings.
Key Features:
- Length: 25 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
- Compatibility: Works with MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for tool-free installation
- Insulation: High-quality insulation for optimized thermal performance and protection
- Construction: Built with corrosion-resistant materials for long-term durability
Perfect for extending the installation distance or replacing an existing lineset, the DIY25-1438-O provides a flexible and user-friendly option for MRCOOL® mini-split systems. Its DIY design ensures users can achieve a professional-grade setup with minimal effort and maximum confidence.
35ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B
DIY35-1438C-O 35ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor with DIY Pro Cable - R454B
The MRCOOL® DIY35-1438C-O is a 35-foot pre-charged lineset with an integrated DIY Pro Cable, engineered for compatibility with MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. This advanced installation component simplifies setup while delivering excellent durability, refrigerant integrity, and safety.
Equipped with patented Quick Connect fittings, this lineset allows for a hassle-free, tool-free connection between indoor and outdoor units. The added DIY Pro Cable enhances reliability and safety during installation, offering pre-attached wiring in a single bundled solution. It's the ideal choice for extended installations requiring both performance and convenience.
Key Features:
- Length: 35 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with R-454B refrigerant for environmentally responsible performance
- Compatibility: Designed for MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for easy and secure installation
- Pro Cable: Integrated DIY Pro Cable for simplified wiring and increased safety
- Insulation: High-quality insulation ensures efficiency and protection from condensation
- Durability: Built with corrosion-resistant materials for long-term use
The DIY35-1438C-O is the perfect solution for users seeking an extended lineset with built-in power and communication cabling. Its all-in-one design streamlines setup and supports reliable performance in MRCOOL® DIY mini-split systems.
50ft 1/4 x 3/8 Line Set for DIY 6K, 9K & 12K Indoor w/ DIY Pro Cable - R454B
DIY50-1438C-O 50ft 1/4 x 3/8 Lineset for DIY 6K, 9K & 12K Indoor with DIY Pro Cable - R454B
The MRCOOL® DIY50-1438C-O is a 50-foot pre-charged lineset with an integrated DIY Pro Cable, designed for use with MRCOOL DIY 6K, 9K, and 12K indoor units using R-454B refrigerant. This extended-length lineset offers a convenient, all-in-one solution for efficient and reliable HVAC installations.
Featuring patented Quick Connect fittings, this lineset enables a quick and secure connection between indoor and outdoor units without specialized tools. The integrated DIY Pro Cable streamlines wiring and enhances installation safety, making it ideal for professional-quality DIY projects.
Key Features:
- Length: 50 feet of pre-charged copper tubing
- Line Sizes: 1/4 inch liquid line and 3/8 inch suction line
- Refrigerant: Pre-charged with eco-friendly R-454B refrigerant
- Compatibility: Suitable for MRCOOL DIY 6K, 9K, and 12K indoor units
- Connection Type: Quick Connect fittings for easy, tool-free installation
- Pro Cable: Integrated DIY Pro Cable for simplified wiring and enhanced safety
- Insulation: High-quality insulation to improve energy efficiency and prevent condensation
- Durability: Constructed with corrosion-resistant materials for lasting performance
This 50-foot lineset with integrated Pro Cable is perfect for installations requiring longer reach and professional-grade convenience. It ensures reliable operation and an efficient setup for MRCOOL® DIY mini-split systems.
Top reviews
- I made a good decisionI am thrilled so far with my new Mr Cool Dual zone system. When it turned out that the unit I wanted was out of stock hvac direct upgraded me to the next size up at no charge. During installation I contacted Mr Cool twice and they were super helpful and did not judge me when it turned out the parts I was missing was in the box I had left in the garage and later I had one unit not working and they asked me to text them a picture and they were able to tell me immediatly what I had done wrong. Fixed my mistake in minutes and have had cold air ever since. I highly recommend havac direct and Mr Cool.
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- Very niceWorks great, have it set at 74 and cools the house. Dogs love it!
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- Great for a DIYerNot my first mr. Cool unit i've installed but it was still pretty easy and quick.
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Customer Questions
Why Choose MRCOOL?
MRCOOL mini split systems combine innovative design with advanced manufacturing to deliver efficient, reliable comfort wherever you need it. Built with cutting-edge technology, these systems ensure optimal performance and flexibility for any space.