Mrcool DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Air Handler 115V

The MRCOOL DIY® 5th Gen 12,000 BTU Single Zone Mini Split Air Handler is an energy-efficient, high-performance indoor unit designed for heating, cooling, and dehumidification in spaces ranging from 350 to 500 sq. ft.. When paired with a compatible MRCOOL DIY® 5th Gen Condenser, this air handler delivers reliable, customizable climate control with easy installation and smart home integration.

Designed for DIY-friendly installation, this unit works with a pre-charged QuickConnect® line set (sold separately), eliminating the need for vacuuming or specialized tools. With SmartHVAC technology, users can adjust settings remotely via the SmartHVAC app, Alexa, Google Assistant, or the included wireless remote for convenient, hands-free operation.

Key Features & Benefits

DIY Installation – No Professional Required

The MRCOOL DIY® 12K BTU Air Handler is designed for easy, wall-mounted installation without requiring professional HVAC tools or expertise.

• Works with DIY® QuickConnect® Line Set – No vacuuming or refrigerant handling needed (sold separately).
• DIYPRO® Cable – Provides enhanced safety and durability, eliminating the need for electrical conduit while protecting against weather and wildlife damage.
• Step-by-Step DIY Guide & Video Support – Ensures a smooth and straightforward installation process for homeowners.

Energy-Efficient Heating & Cooling

This system provides consistent, year-round climate control, making it perfect for bedrooms, living rooms, home offices, and small apartments.

• 12,000 BTU Capacity – Ideal for 350 to 500 sq. ft. spaces.
• 115V Power Supply – Works with standard home electrical outlets for easy setup.
• Optimized for Energy Savings – Reduces electricity costs while maintaining superior comfort.

Smart Home Integration for Convenient Climate Control

This air handler allows remote access and automation through multiple smart home platforms.

• SmartHVAC App (iOS & Android) – Adjust temperature, mode, and fan speed from anywhere.
• Amazon Alexa & Google Assistant Compatibility – Control settings hands-free with voice commands.
• Wireless Remote Control – Conveniently adjust temperature and fan speed from anywhere in the room.
• Follow Me Function – Senses temperature at the remote’s location and adjusts airflow accordingly for personalized comfort.

Dehumidification Mode for Better Air Quality

In addition to temperature control, this air handler enhances indoor air quality with its built-in humidity management feature.

• Dry Mode (Dehumidification Function) – Removes excess moisture, reducing humidity levels and improving comfort.

Industry-Leading Warranty for Long-Term Protection

MRCOOL backs the DIY 5th Gen 12K BTU Air Handler with a comprehensive warranty, ensuring peace of mind and system reliability.

• Limited Lifetime Warranty on Select Components – Guarantees extended durability and performance.
• 7-Year Compressor Warranty – Covers essential system components for long-term efficiency.
• 5-Year Parts Warranty – Protects key system parts against defects and malfunctions.

Why Buy from an Authorized MRCOOL Dealer?

Purchasing from a trusted MRCOOL dealer ensures that you receive genuine, high-quality products with expert support and fast shipping.

• 100% Authentic MRCOOL Products – No third-party resellers or counterfeit parts.
• Expert DIY Customer Support – Assistance with installation, troubleshooting, and system selection.
• Fast & Secure Nationwide Shipping – Orders are processed quickly for reliable delivery.
• Factory-Direct Pricing – Get the best deals on official MRCOOL systems and accessories.

Final Words

The MRCOOL DIY® 5th Gen ENERGY STAR® 12,000 BTU Mini Split Air Handler is a versatile, efficient, and user-friendly indoor unit designed for seamless installation and precise climate control. With smart home compatibility, energy efficiency, and a high-performance dehumidification mode, this air handler provides advanced comfort without requiring professional installation.

Pair it with a compatible MRCOOL DIY® 5th Gen Condenser, and enjoy a cost-effective, energy-saving, and fully customizable comfort solution in your home or workspace. Upgrade today and take control of your indoor climate with MRCOOL DIY®.