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MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 and 35 ft. Install Kit, DIYM218HPC01C08

SKU DIYM218HPC01C08
by MRCOOL
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Description

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 and 35 ft. Install Kit, DIYM218HPC01C08

Imagine delivering top-tier comfort and control to your clients with the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system — the perfect choice for business owners, contractors, and HVAC professionals who demand efficiency, reliability, and simplicity. This 4th Generation system is designed to transform homes, garages, workshops, and commercial spaces with precise, multi-zone climate control — all while empowering you to complete installations quickly and confidently without specialized tools or technicians.

Tailored Multi-Zone Comfort for Every Space

Visualize two sleek ceiling cassette air handlers elegantly installed between standard 16” ceiling joists, providing a seamless, low-profile look that fits any décor. The 9,000 BTU unit expertly manages smaller rooms from 180 to 375 square feet, while the 12,000 BTU unit covers medium-sized spaces between 376 and 500 square feet. Each zone operates independently, allowing your clients to customize comfort room by room — maximizing efficiency and satisfaction.

Installation Made Effortless and Cost-Effective

Say goodbye to the hassle and expense of traditional HVAC installations. MRCOOL’s patented Pre-Charged Quick Connect Line Sets come pre-filled with R-410A refrigerant, enabling you to install the system swiftly and without vacuuming or special tools. The included 25 and 35 ft. line sets provide the flexibility to accommodate a wide range of layouts, helping you reduce labor time and costs while delivering professional results that impress every time.

Durable, Energy-Efficient Performance You Can Trust

The 18K BTU condenser features a Gold Fin® coating that shields it from corrosion, making it ideal for coastal and harsh environments. With an outstanding 21.2 SEER2 cooling rating and an 8.6 HSPF-5 heating rating, this system delivers powerful comfort while minimizing energy consumption. It reliably heats spaces even when temperatures drop to -13°F, ensuring your clients enjoy year-round comfort regardless of the weather. Plus, with a 7-year compressor warranty and a 5-year parts warranty, you can feel confident in the system’s durability and longevity.

Smart Control at Your Fingertips

Enhance your clients’ experience with the SmartHVAC app, which offers intuitive remote control of each zone from anywhere. Whether adjusting the temperature at home or on the go, this app makes managing comfort effortless and energy-efficient.

Why Choose the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette?
  • Two ceiling cassette air handlers for precise multi-zone comfort
  • Pre-charged Quick Connect Line Sets for fast, tool-free installation
  • High efficiency with 21.2 SEER2 and 8.6 HSPF-5 ratings
  • Gold Fin® coated condenser for superior corrosion resistance
  • Reliable heating down to -13°F for extreme weather performance
  • SmartHVAC app for convenient remote management
  • Comprehensive 7-year compressor and 5-year parts warranty

With the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system, you’re offering more than just HVAC equipment — you’re delivering a streamlined installation experience and a high-performance product that elevates your reputation as a trusted provider of advanced, customer-focused climate solutions. This system is your key to faster installs, happier clients, and a stronger business.

Condenser (18K BTU)

  • Innovative Installation: Get ready for an unparalleled installation experience with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, empowering you to install without needing a technician!
  • Durability Redefined: Protect against corrosion with the robust Gold Fin® condenser coating, specially designed for coastal areas.
  • Impressive Efficiency: Achieve stunning energy savings with a 21.2 SEER2 and 8.6 HSPF-5 rating.
  • Year-Round Performance: Enjoy reliable heating even in extreme cold, down to -13°F.
  • Peace of Mind: Benefit from a 7-year compressor warranty and a 5-year parts warranty.

Air Handler (9K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 9k BTU Ceiling Cassette fits seamlessly between 16” ceiling joists, delivering a sleek and space-saving installation.
  • Multi-Zone Compatibility: Designed to integrate with the DIY 4th gen MZ system, it enables multi-zone configurations and eliminates the need for ductwork.
  • Ideal Coverage Area: Perfect for spaces ranging from 180 to 375 square feet, making it suitable for both small and medium-sized rooms.
  • Remote Control Access: Enjoy effortless control with SmartHVAC app compatibility, enabling management from anywhere via a smartphone or tablet.
  • Effortless Installation: Simplify setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no vacuuming or special tools needed.

Air Handler (12K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
  • Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
  • Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
  • Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
  • Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.

Line Set

  • Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
  • Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
  • DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
  • Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US
Request an Installer

Product Overview

  • Zone / ROOM:

    Zone / ROOM: 2 Zone

  • Air Handler BTU:

    Air Handler BTU: 9k + 12k

  • Condenser BTU:

    Condenser BTU: 18k

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat): Heating -13°F to 75.2°F & Cooling 5°F to 122°F

  • Warranty

    Warranty 7-year compressor warranty & 5-year parts warranty

Description

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 and 35 ft. Install Kit, DIYM218HPC01C08

Imagine delivering top-tier comfort and control to your clients with the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system — the perfect choice for business owners, contractors, and HVAC professionals who demand efficiency, reliability, and simplicity. This 4th Generation system is designed to transform homes, garages, workshops, and commercial spaces with precise, multi-zone climate control — all while empowering you to complete installations quickly and confidently without specialized tools or technicians.

Tailored Multi-Zone Comfort for Every Space

Visualize two sleek ceiling cassette air handlers elegantly installed between standard 16” ceiling joists, providing a seamless, low-profile look that fits any décor. The 9,000 BTU unit expertly manages smaller rooms from 180 to 375 square feet, while the 12,000 BTU unit covers medium-sized spaces between 376 and 500 square feet. Each zone operates independently, allowing your clients to customize comfort room by room — maximizing efficiency and satisfaction.

Installation Made Effortless and Cost-Effective

Say goodbye to the hassle and expense of traditional HVAC installations. MRCOOL’s patented Pre-Charged Quick Connect Line Sets come pre-filled with R-410A refrigerant, enabling you to install the system swiftly and without vacuuming or special tools. The included 25 and 35 ft. line sets provide the flexibility to accommodate a wide range of layouts, helping you reduce labor time and costs while delivering professional results that impress every time.

Durable, Energy-Efficient Performance You Can Trust

The 18K BTU condenser features a Gold Fin® coating that shields it from corrosion, making it ideal for coastal and harsh environments. With an outstanding 21.2 SEER2 cooling rating and an 8.6 HSPF-5 heating rating, this system delivers powerful comfort while minimizing energy consumption. It reliably heats spaces even when temperatures drop to -13°F, ensuring your clients enjoy year-round comfort regardless of the weather. Plus, with a 7-year compressor warranty and a 5-year parts warranty, you can feel confident in the system’s durability and longevity.

Smart Control at Your Fingertips

Enhance your clients’ experience with the SmartHVAC app, which offers intuitive remote control of each zone from anywhere. Whether adjusting the temperature at home or on the go, this app makes managing comfort effortless and energy-efficient.

Why Choose the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette?
  • Two ceiling cassette air handlers for precise multi-zone comfort
  • Pre-charged Quick Connect Line Sets for fast, tool-free installation
  • High efficiency with 21.2 SEER2 and 8.6 HSPF-5 ratings
  • Gold Fin® coated condenser for superior corrosion resistance
  • Reliable heating down to -13°F for extreme weather performance
  • SmartHVAC app for convenient remote management
  • Comprehensive 7-year compressor and 5-year parts warranty

With the MRCOOL DIY Mini Split 21,000 BTU 2 Zone Ceiling Cassette system, you’re offering more than just HVAC equipment — you’re delivering a streamlined installation experience and a high-performance product that elevates your reputation as a trusted provider of advanced, customer-focused climate solutions. This system is your key to faster installs, happier clients, and a stronger business.

Condenser (18K BTU)

  • Innovative Installation: Get ready for an unparalleled installation experience with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, empowering you to install without needing a technician!
  • Durability Redefined: Protect against corrosion with the robust Gold Fin® condenser coating, specially designed for coastal areas.
  • Impressive Efficiency: Achieve stunning energy savings with a 21.2 SEER2 and 8.6 HSPF-5 rating.
  • Year-Round Performance: Enjoy reliable heating even in extreme cold, down to -13°F.
  • Peace of Mind: Benefit from a 7-year compressor warranty and a 5-year parts warranty.

Air Handler (9K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 9k BTU Ceiling Cassette fits seamlessly between 16” ceiling joists, delivering a sleek and space-saving installation.
  • Multi-Zone Compatibility: Designed to integrate with the DIY 4th gen MZ system, it enables multi-zone configurations and eliminates the need for ductwork.
  • Ideal Coverage Area: Perfect for spaces ranging from 180 to 375 square feet, making it suitable for both small and medium-sized rooms.
  • Remote Control Access: Enjoy effortless control with SmartHVAC app compatibility, enabling management from anywhere via a smartphone or tablet.
  • Effortless Installation: Simplify setup with MRCOOL’s Pre-Charged Quick Connect Line Set—no vacuuming or special tools needed.

Air Handler (12K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
  • Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
  • Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
  • Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
  • Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.

Line Set

  • Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
  • Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
  • DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
  • Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.
Shipping and Return

We offer Free Express Shipping on all of our products. Handling times are 1-2 business days and Delivery takes roughly 3-14 Business days 

For more Shipping information visit here

We offer a 2 Year (730 Day) return for our products. 

For more Return information visit here

COVERAGE AREA

HIVE WARRANTY

HVAC Hive Warranty Information:

HVAC Hive is an authorized dealer for every product on our website. Every HVAC system and component comes with its original manufacturer's warranty, guaranteeing you receive a functional, quality product.

Our 5-Year Parts & Labor Warranty Promise: We go beyond the standard coverage. If a manufacturer's warranty doesn't cover your product for a full 5 years, HVAC Hive will extend both parts and labor warranty to complete the 5-year coverage period.

Example: If your manufacturer covers 2 years parts & labor, we'll cover an additional 3 years — giving you a full 5 years of parts and labor protection.

Warranty Coverage Includes:

  • Parts replacement for manufacturing defects
  • Labor costs for covered repairs
  • System malfunctions and component failures

Warranty Details:

  • Residential, light commercial, and full commercial warranties vary based on your usage
  • Specific warranty terms and coverage periods are listed on each product page
  • Both parts and labor are covered under our extended warranty program

Making a Warranty Claim: Contact our Worker Bee Support team at 1-888-712-2465 or karim@hvachive.com . We'll handle your claim quickly and professionally, covering both parts and labor costs. You can also contact the manufacturer directly if preferred.

Questions? Need help understanding your parts & labor warranty coverage? Our team is here to explain the details and ensure you're fully protected.

Contact US

Commercial HVAC PROS!

Unlock Installer Benefits Now:

  • ✓ Exclusive BULK Pricing
  • ✓ Limited Time Deals
  • ✓ Unmatched Service & Support
  • ✓ Technical support
  • ✓ Extended Warranty & Maintenance
"Their technical expertise in commercial HVAC systems is outstanding. From equipment selection to installation support, they provided everything we needed. The bulk pricing saved us thousands on our multi-building project, and their 24/7 technical support kept us running smoothly."
- Marcus R., HVAC Project Manager, 06/24

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  • ✓ Pre-Vetted, Licensed & Insured Installers
  • ✓ 2-3 Local Options in Your Area
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  • ✓ Fast Response - Within 24 Hours

How it works:

1. Fill out the form below with your project details
2. We'll match you with 2-3 qualified installers in your area
3. Installers contact you directly with quotes and availability
4. You choose the best fit for your project

"I bought a heat pump online but wasn't sure about installation. HVAC Hive connected me with three local contractors within hours. I chose one based on reviews and pricing - he installed it perfectly the next week. Made the whole process so much easier!"
- Jennifer M., Homeowner, Phoenix AZ

✓ No obligation quotes | ✓ All installers background checked | ✓ Free service - you only pay the installer

We'll connect you with installers within 48 hours during business days

Frequently Asked Questions about MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 and 35 ft. Install Kit, DIYM218HPC01C08

Most Frequently Asked Questions

Many homeowners choose Mr. Cool DIY mini splits because they’re simple to install, work reliably, and offer an affordable way to upgrade home comfort without hiring a professional.
A MRCOOL mini-split typically lasts 10 to 20 years with proper installation and regular maintenance
Installing a MRCOOL mini split system typically costs between $3,000 and $10,000, depending on system size, number of zones, and installation complexity. Opting for DIY installation can save you $500 to $2,000 in labor costs

Other Questions

Yes, MRCOOL DIY mini split systems are designed for easy self-installation with pre-charged, quick-connect line sets that eliminate the need for refrigerant handling or specialized HVAC tools. However, depending on local regulations, you may still need a licensed electrician for the electrical wiring and to ensure code compliance.
Mini split systems typically last between 10 and 20 years with proper installation and regular maintenance.

Reviews

Express Free Shipping

Process orders within 1-2 days

Stress Free Returns

Get Covered for (730 days) Returns

Premum Quality

Top Tier Products, Even Better Customer Care

5 Year Warranty

We Believe In Our Products & Our Team