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MRCOOL DIY Mini Split - 42,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-448HP09091212

SKU DIY-BC-448HP09091212
by MRCOOL
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Description

MRCOOL DIY Mini Split - 42,000 BTU 4 Zone Ceiling Cassette System (DIY-BC-448HP09091212)

Transform Your Property with Professional-Grade Climate Control You Can Install Yourself

Revolutionize your home or business with MRCOOL's most advanced 4-zone ceiling cassette system - delivering sophisticated, invisible comfort without the professional installation costs. This comprehensive 42,000 BTU package empowers you to create perfect climate zones throughout your property while maintaining the clean, uncluttered aesthetic that traditional HVAC systems simply cannot match.

Imagine your perfect environment: bedrooms that maintain ideal sleeping temperatures, a home office that stays productive regardless of outdoor conditions, and living spaces that welcome you with perfect comfort year-round. Now imagine achieving this premium climate solution without disrupting your space with bulky wall units or expensive, invasive ductwork installations.

At the heart of this system is the powerful 48,000 BTU outdoor condenser featuring impressive 20.5 SEER2 and 8.5 HSPF-5 ratings - efficiency metrics that translate to substantial energy savings you'll see immediately on your utility bills. The protective Gold Fin® coating ensures lasting durability against environmental elements, while reliable heating performance down to 5°F delivers true year-round comfort in most climate regions.

This premium package includes four ceiling cassette air handlers strategically sized for different spaces:

  • Two 9,000 BTU units perfect for bedrooms, home offices, or spaces up to 375 square feet each
  • Two 12,000 BTU units ideal for living rooms, open kitchens, or larger areas up to 500 square feet each

Each ceiling cassette installs discreetly between standard 16" ceiling joists, virtually disappearing into your ceiling while delivering whisper-quiet comfort from above. The modern, low-profile design complements any interior aesthetic without sacrificing wall space or requiring extensive renovations - just perfect comfort that enhances your property value while preserving your design vision.

The DIY Revolution in Premium HVAC

What truly sets MRCOOL apart - and saves you thousands in installation costs - is the revolutionary pre-charged Quick Connect Line Set technology. These specialized copper lines come pre-filled with R-410A refrigerant, eliminating the need for vacuum pumps, specialized equipment, or certified technicians. This breakthrough innovation means you can confidently install a professional-grade multi-zone system yourself, with no specialized tools or certifications required.

The intuitive design guides you through each step, from mounting the indoor and outdoor units to connecting the pre-charged lines with simple hand tools. Within hours, not days, you'll have a premium multi-zone comfort system that would typically cost thousands more with professional installation.

Key Features That Set This System Apart:
  • Complete 4-Zone Solution: Perfect climate control for up to four separate spaces, ideal for homes, offices, or mixed-use properties
  • Premium Energy Efficiency: 20.5 SEER2 and 8.5 HSPF-5 ratings substantially reduce monthly operating costs
  • Invisible Installation: Low-profile ceiling cassettes disappear into your ceiling, preserving wall space and interior aesthetics
  • DIY-Friendly Design: Pre-charged Quick Connect line sets eliminate the need for specialized tools or technicians
  • Smart Home Integration: Complete control via smartphone or tablet with the intuitive SmartHVAC app
  • Year-Round Performance: Reliable heating even when temperatures drop to 5°F
  • Comprehensive Protection: 7-year compressor warranty and 5-year parts warranty for complete peace of mind

The MRCOOL DIY Multi-Zone system represents the perfect balance of professional-grade performance and accessible installation. Whether you're upgrading your forever home, enhancing a vacation property, or improving your business environment, this system delivers sophisticated climate control without the premium installation costs typically associated with multi-zone systems.

Join thousands of satisfied MRCOOL customers who have discovered the perfect balance of comfort, efficiency, and value. Take control of your climate and your budget with the system that revolutionizes how premium HVAC is installed and experienced.

Condenser (48K BTU)

  • Streamlined Installation: Take control with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, making installation a breeze without the need for professional assistance.
  • Resilient Protection: Stay safeguarded against wear with the Gold Fin® condenser coating.
  • Unmatched Efficiency: Enjoy remarkable energy savings with a 20.5 SEER2 and 8.5 HSPF-5 rating.
  • Winter-Ready: Generate warmth reliably, even when outdoor temperatures reach as low as 5°F.
  • Comprehensive Warranty: 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.
Shipping and Return

For Shipping & 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

Product Overview

  • Zone / ROOM:

    Zone / ROOM: 4 Zone

  • Air Handler BTU:

    Air Handler BTU: 9k + 9k + 12k + 12k

  • Condenser BTU:

    Condenser BTU: 48k

  • 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 & 5-year parts warranty

Description

MRCOOL DIY Mini Split - 42,000 BTU 4 Zone Ceiling Cassette System (DIY-BC-448HP09091212)

Transform Your Property with Professional-Grade Climate Control You Can Install Yourself

Revolutionize your home or business with MRCOOL's most advanced 4-zone ceiling cassette system - delivering sophisticated, invisible comfort without the professional installation costs. This comprehensive 42,000 BTU package empowers you to create perfect climate zones throughout your property while maintaining the clean, uncluttered aesthetic that traditional HVAC systems simply cannot match.

Imagine your perfect environment: bedrooms that maintain ideal sleeping temperatures, a home office that stays productive regardless of outdoor conditions, and living spaces that welcome you with perfect comfort year-round. Now imagine achieving this premium climate solution without disrupting your space with bulky wall units or expensive, invasive ductwork installations.

At the heart of this system is the powerful 48,000 BTU outdoor condenser featuring impressive 20.5 SEER2 and 8.5 HSPF-5 ratings - efficiency metrics that translate to substantial energy savings you'll see immediately on your utility bills. The protective Gold Fin® coating ensures lasting durability against environmental elements, while reliable heating performance down to 5°F delivers true year-round comfort in most climate regions.

This premium package includes four ceiling cassette air handlers strategically sized for different spaces:

  • Two 9,000 BTU units perfect for bedrooms, home offices, or spaces up to 375 square feet each
  • Two 12,000 BTU units ideal for living rooms, open kitchens, or larger areas up to 500 square feet each

Each ceiling cassette installs discreetly between standard 16" ceiling joists, virtually disappearing into your ceiling while delivering whisper-quiet comfort from above. The modern, low-profile design complements any interior aesthetic without sacrificing wall space or requiring extensive renovations - just perfect comfort that enhances your property value while preserving your design vision.

The DIY Revolution in Premium HVAC

What truly sets MRCOOL apart - and saves you thousands in installation costs - is the revolutionary pre-charged Quick Connect Line Set technology. These specialized copper lines come pre-filled with R-410A refrigerant, eliminating the need for vacuum pumps, specialized equipment, or certified technicians. This breakthrough innovation means you can confidently install a professional-grade multi-zone system yourself, with no specialized tools or certifications required.

The intuitive design guides you through each step, from mounting the indoor and outdoor units to connecting the pre-charged lines with simple hand tools. Within hours, not days, you'll have a premium multi-zone comfort system that would typically cost thousands more with professional installation.

Key Features That Set This System Apart:
  • Complete 4-Zone Solution: Perfect climate control for up to four separate spaces, ideal for homes, offices, or mixed-use properties
  • Premium Energy Efficiency: 20.5 SEER2 and 8.5 HSPF-5 ratings substantially reduce monthly operating costs
  • Invisible Installation: Low-profile ceiling cassettes disappear into your ceiling, preserving wall space and interior aesthetics
  • DIY-Friendly Design: Pre-charged Quick Connect line sets eliminate the need for specialized tools or technicians
  • Smart Home Integration: Complete control via smartphone or tablet with the intuitive SmartHVAC app
  • Year-Round Performance: Reliable heating even when temperatures drop to 5°F
  • Comprehensive Protection: 7-year compressor warranty and 5-year parts warranty for complete peace of mind

The MRCOOL DIY Multi-Zone system represents the perfect balance of professional-grade performance and accessible installation. Whether you're upgrading your forever home, enhancing a vacation property, or improving your business environment, this system delivers sophisticated climate control without the premium installation costs typically associated with multi-zone systems.

Join thousands of satisfied MRCOOL customers who have discovered the perfect balance of comfort, efficiency, and value. Take control of your climate and your budget with the system that revolutionizes how premium HVAC is installed and experienced.

Condenser (48K BTU)

  • Streamlined Installation: Take control with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, making installation a breeze without the need for professional assistance.
  • Resilient Protection: Stay safeguarded against wear with the Gold Fin® condenser coating.
  • Unmatched Efficiency: Enjoy remarkable energy savings with a 20.5 SEER2 and 8.5 HSPF-5 rating.
  • Winter-Ready: Generate warmth reliably, even when outdoor temperatures reach as low as 5°F.
  • Comprehensive Warranty: 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.
Shipping and Return

For Shipping & 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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Frequently Asked Questions about MRCOOL DIY Mini Split - 42,000 BTU 4 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump, DIY-BC-448HP09091212

Most Frequently Asked Questions

It is often cheaper to run a mini split than central AC, especially when cooling only specific rooms, because mini splits are more energy efficient, avoid duct losses, and allow for zoned temperature control, though whole-home cooling with central AC may be more cost-effective in some situations depending on home size and usage patterns.

A MRCOOL mini split typically lasts 10 to 20 years with proper installation and regular maintenance.

Gen 5 MRCOOL mini splits use a more eco-friendly R454B refrigerant, have higher energy efficiency, quieter operation, improved cold-weather performance, and greater rebate eligibility compared to Gen 4

Other Questions

Installing a MRCOOL mini split system typically costs between $3,000 and $10,000, depending on system size, number of zones, and installation complexity, with DIY installation potentially saving $500 to $2,000 in labor costs

Yes, mini-split systems are worth it for many homeowners because they offer efficient, flexible, and zoned heating and cooling without ductwork, often resulting in energy savings, quieter operation, and easier installation—especially beneficial for homes without existing ducts or for controlling temperatures in specific rooms.

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Premum Quality

Top Tier Products, Even Better Customer Care

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We Believe In Our Products & Our Team