MRCOOL DIY® 5th Gen 12,000 BTU Single Zone Mini Split Air Handler – 115V (DIY-12-HP-WMAH-115D25-O)
The MRCOOL DIY® 5th Gen 12K BTU Single Zone Mini Split Air Handler is designed for year-round heating and cooling, providing energy-efficient climate control for spaces 350 to 500 sq. ft.. This air handler pairs with the MRCOOL DIY® 5th Gen Condenser, delivering seamless operation, customizable comfort, and wireless control.
With a simple DIY installation, this indoor unit is easy to set up with the pre-charged QuickConnect® line set (sold separately). Enjoy hands-free temperature control via the SmartHVAC app, Amazon Alexa, or Google Assistant, or use the included remote.
📌 This listing includes only the indoor air handler. A compatible MRCOOL DIY® 5th Gen Condenser is required for full system operation.
Key Features & Benefits:
✅ DIY Installation – No HVAC Technician Required
- Works with pre-charged DIY® QuickConnect® line set (sold separately) for a vacuum-free installation.
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No special tools or professional experience needed—perfect for DIYers.
✅ Powerful Heating & Cooling
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12,000 BTU capacity, ideal for 350-500 sq. ft. rooms.
- Operates on 115V power supply.
✅ Smart Climate Control for Maximum Comfort
- Adjust settings via SmartHVAC app (iOS & Android), remote, or voice commands with Amazon Alexa & Google Assistant.
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Follow Me Function optimizes comfort by adjusting airflow based on the remote’s location.
✅ Dehumidification Mode for Improved Air Quality
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Dry Mode reduces excess humidity, enhancing indoor air quality.
✅ DIYPRO® Cable – Enhanced Durability
- Eliminates the need for electrical conduit, providing extra protection against outdoor elements and wildlife.
✅ Industry-Leading Warranty
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Limited Lifetime Warranty on select components.
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7-Year Compressor Warranty and 5-Year Parts Warranty.
✅ Certified for Quality & Safety
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Intertek listed (5031495) for compliance with performance, safety, and energy efficiency standards.
Specifications:
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Brand: MRCOOL DIY®
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Model: DIY-12-HP-WMAH-115D25-O
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Capacity: 12,000 BTU
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Coverage Area: 350-500 sq. ft.
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Power Supply: 115V
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Compatible Line Set: DIY® QuickConnect® (sold separately)
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Control Options: Remote, SmartHVAC App, Alexa, Google Assistant
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Functions: Heating, Cooling, Dehumidification (Dry Mode), Follow Me Function
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Certifications: Intertek Listed 5031495
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Compressor Warranty: 7 Years
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Parts Warranty: 5 Years
Important Notes:
📌 This listing includes only the indoor air handler. A compatible MRCOOL DIY® 5th Gen Condenser is required for full system operation.
📌 Stock images may be used—actual product appearance may vary slightly.
📌 Professional Installation Not Required – Designed for DIY installation, but must be paired with a compatible MRCOOL outdoor condenser for full operation.
Need Help? Contact Us!
If you have any questions about the MRCOOL DIY® 5th Gen 12K BTU Mini Split Air Handler, please call us to speak with a customer service representative. They will be happy to assist you!
As always, purchase your MRCOOL parts and equipment from MRCOOL DIY Direct, the USA’s most trusted MRCOOL dealer.
