Skip to content

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 16 ft. Install Kit, DIYM218HPC01C00

SKU DIYM218HPC01C00
by MRCOOL
Authorized Dealer Official
100% Authentic Guarantee
In stock, ready to ship

Fast shipping icon FREE EXPRESS SHIPPING: Process orders in 1 business day

Returns icon STRESS FREE RETURNS: 2 Year Returns

VIP icon PREMIUM QUALITY: Top Tier Products, Even Better Customer Care

Warranty icon 5 YEAR WARRANTY: We Believe In Our Products & Our Team

Professional installation icon PROFESSIONAL INSTALLATION: Get connected with certified, licensed installers in your area - Request installer quotes

$5,803.00

Notify me when back in stock

Estimated Shipping Widget will be displayed here!

Sticky Add to Cart Button
Description

MRCOOL DIY Mini Split - 21,000 BTU 2 Zone Ceiling Cassette System with Standard Install Kit

Transform your clients' mixed-space properties with MRCOOL's perfectly balanced dual-zone ceiling cassette system. This optimized 21,000 BTU solution delivers precision comfort across complementary living spaces with architectural elegance, paired with the user-friendly 16-foot installation kit that ensures successful implementation for even first-time DIY installers.

Your clients will immediately visualize:

  • Perfect climate control across complementary living spaces (one small, one medium)
  • Sleek, architecturally integrated ceiling units that disappear into modern ceilings
  • Independent smartphone control for personalized comfort in each zone
  • Complete installation package with properly sized components
  • Thousands saved on professional installation costs

The efficient 18K BTU outdoor condenser works harmoniously with the strategically paired 9K and 12K BTU indoor cassettes to deliver exceptional 21.2 SEER2 efficiency while the Gold Fin® coating ensures remarkable durability—an essential feature for ensuring long-term performance in variable environments.

Perfect Configuration for Common Residential Layout Challenges

This system addresses the real-world challenge of homes with differently sized adjacent spaces requiring balanced climate control. Your clients get the ideal combination with one 9K BTU unit (perfect for bedrooms, offices or small living areas up to 375 sq ft) paired with one 12K BTU unit (ideal for main living areas up to 500 sq ft)—plus the essential 16-foot line sets for standard installation scenarios.

With this thoughtfully engineered configuration, you're offering a solution that effectively climate-controls up to 875 square feet of living space across two distinct zones—perfectly matching the typical residential pattern of one main living area paired with one smaller adjacent space. This remarkably practical pairing addresses the most common floor plan challenge without the expense of oversized equipment.

Revolutionary Complete DIY Package Maximizes Customer Satisfaction

While your competitors struggle with complicated installation requirements that intimidate homeowners, you'll deliver MRCOOL's game-changing pre-charged Quick Connect technology—empowering even first-time DIY clients to handle installation themselves with confidence and success.

This innovation dramatically improves your customer satisfaction metrics by eliminating installation-related failures and callbacks. Your clients save $1,800-$3,000 on professional installation while enjoying the confidence of a complete, matched system with proper line sets—creating enthusiastic referrals that traditional installation-required systems simply cannot generate.

Key Benefits That Drive Sales:
  • Perfectly Balanced Zones: Strategic 9K/12K BTU combination for typical home layouts with mixed room sizes
  • Complete Starter Package: Includes the essential 16ft line sets for standard residential installations
  • Architectural Excellence: Low-profile ceiling cassettes maintain design integrity in modern interiors
  • Premium Efficiency: Outstanding 21.2 SEER2 rating delivers substantial operational savings
  • Cold Weather Performance: Reliable heating down to -13°F ensures year-round comfort
  • Intelligent Control: Complete smartphone management with individualized zone settings
  • Premium Protection: Industry-leading 7-year compressor and 5-year parts warranties

Position your business as the customer-focused HVAC supplier that truly understands residential comfort challenges. The MRCOOL DIY 9K/12K BTU system with standard installation kit provides the perfect combination of proper sizing, efficiency and DIY accessibility for typical residential applications, eliminating the intimidation factor that traditionally keeps homeowners from considering ductless solutions.

This strategically packaged system represents the ideal starter solution for clients with mixed-space conditioning needs who want comfortable, efficient performance without complexity—all with the DIY simplicity that has made MRCOOL the breakthrough brand in residential HVAC modernization.

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 System with Standard Install Kit

Transform your clients' mixed-space properties with MRCOOL's perfectly balanced dual-zone ceiling cassette system. This optimized 21,000 BTU solution delivers precision comfort across complementary living spaces with architectural elegance, paired with the user-friendly 16-foot installation kit that ensures successful implementation for even first-time DIY installers.

Your clients will immediately visualize:

  • Perfect climate control across complementary living spaces (one small, one medium)
  • Sleek, architecturally integrated ceiling units that disappear into modern ceilings
  • Independent smartphone control for personalized comfort in each zone
  • Complete installation package with properly sized components
  • Thousands saved on professional installation costs

The efficient 18K BTU outdoor condenser works harmoniously with the strategically paired 9K and 12K BTU indoor cassettes to deliver exceptional 21.2 SEER2 efficiency while the Gold Fin® coating ensures remarkable durability—an essential feature for ensuring long-term performance in variable environments.

Perfect Configuration for Common Residential Layout Challenges

This system addresses the real-world challenge of homes with differently sized adjacent spaces requiring balanced climate control. Your clients get the ideal combination with one 9K BTU unit (perfect for bedrooms, offices or small living areas up to 375 sq ft) paired with one 12K BTU unit (ideal for main living areas up to 500 sq ft)—plus the essential 16-foot line sets for standard installation scenarios.

With this thoughtfully engineered configuration, you're offering a solution that effectively climate-controls up to 875 square feet of living space across two distinct zones—perfectly matching the typical residential pattern of one main living area paired with one smaller adjacent space. This remarkably practical pairing addresses the most common floor plan challenge without the expense of oversized equipment.

Revolutionary Complete DIY Package Maximizes Customer Satisfaction

While your competitors struggle with complicated installation requirements that intimidate homeowners, you'll deliver MRCOOL's game-changing pre-charged Quick Connect technology—empowering even first-time DIY clients to handle installation themselves with confidence and success.

This innovation dramatically improves your customer satisfaction metrics by eliminating installation-related failures and callbacks. Your clients save $1,800-$3,000 on professional installation while enjoying the confidence of a complete, matched system with proper line sets—creating enthusiastic referrals that traditional installation-required systems simply cannot generate.

Key Benefits That Drive Sales:
  • Perfectly Balanced Zones: Strategic 9K/12K BTU combination for typical home layouts with mixed room sizes
  • Complete Starter Package: Includes the essential 16ft line sets for standard residential installations
  • Architectural Excellence: Low-profile ceiling cassettes maintain design integrity in modern interiors
  • Premium Efficiency: Outstanding 21.2 SEER2 rating delivers substantial operational savings
  • Cold Weather Performance: Reliable heating down to -13°F ensures year-round comfort
  • Intelligent Control: Complete smartphone management with individualized zone settings
  • Premium Protection: Industry-leading 7-year compressor and 5-year parts warranties

Position your business as the customer-focused HVAC supplier that truly understands residential comfort challenges. The MRCOOL DIY 9K/12K BTU system with standard installation kit provides the perfect combination of proper sizing, efficiency and DIY accessibility for typical residential applications, eliminating the intimidation factor that traditionally keeps homeowners from considering ductless solutions.

This strategically packaged system represents the ideal starter solution for clients with mixed-space conditioning needs who want comfortable, efficient performance without complexity—all with the DIY simplicity that has made MRCOOL the breakthrough brand in residential HVAC modernization.

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

You'll hear from us during business hours

Request an Installer

Need Professional Installation?

Get Connected with Certified HVAC Installers:

  • ✓ Pre-Vetted, Licensed & Insured Installers
  • ✓ 2-3 Local Options in Your Area
  • ✓ Specialists in Your Equipment Type
  • ✓ Competitive, Transparent Pricing
  • ✓ 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 16 ft. Install Kit, DIYM218HPC01C00

Most Frequently Asked Questions

Many homeowners find Mr. Cool DIY mini splits to be a convenient and effective solution, thanks to their straightforward installation process, solid heating and cooling capabilities, and the ability to save on professional installation costs.
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 factors like 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, while MRCOOL DIY mini splits are designed for easy installation, you’ll usually need a licensed electrician to handle the electrical wiring and connect the unit safely to your home’s power supply to meet local codes and ensure safety.
Yes, MRCOOL mini split systems provide efficient heating during winter as well as cooling during summer, making them suitable for year-round climate control.

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