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DIY-12-HP-WMAH-230D25-O
MRCOOL DIY® 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler 230V
$689.00$875.03
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- 🛠️ Easy DIY Install — No Special Tools Required
- ⚡ Energy Star® Efficient Heating & Cooling
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- Description
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- Why Buy From Us
Description
Powerful Zoned Comfort for Larger Rooms Without Ductwork
This ductless mini split indoor air handler is designed to deliver reliable heating and cooling for medium-to-large spaces while keeping installation flexible and system expansion simple. Built to pair with compatible MRCOOL DIY® 5th Gen multi-zone condensers, it allows you to control individual rooms independently without running ductwork or oversizing a system.
Ideal for master bedrooms, living areas, home offices, or bonus rooms, this 12,000 BTU wall-mounted unit combines efficient performance, modern controls, and quiet operation in a compact footprint.
System Compatibility & Important Notes
- Indoor air handler only — not a complete mini split system
- Requires a compatible MRCOOL DIY® 5th Gen R-454B multi-zone condenser
- Not compatible with older MRCOOL R-410A systems or single-zone condensers
Key Features & Benefits
- 12,000 BTU Heating & Cooling Capacity -Designed for rooms up to 550 sq. ft., delivering consistent comfort in larger residential spaces.
- Multi-Zone Compatible Design -Works exclusively with MRCOOL DIY® 5th Gen R-454B multi-zone condensers, allowing room-by-room temperature control.
- DIY-Friendly Connection System - Compatible with MRCOOL QuickConnect® pre-charged line sets for vacuum-free installation when paired with the proper outdoor unit.
- Eco-Conscious R-454B Refrigerant - Lower Global Warming Potential than R-410A while maintaining efficient heating and cooling performance.
- Smart Control Options - Adjust settings using the included remote, SmartHVAC app, or voice commands through Alexa or Google Assistant.
- Follow Me Temperature Sensing - Uses the remote’s location to regulate comfort more accurately where you’re actually sitting or sleeping.
- Dry Mode for Humidity Control - Helps reduce excess moisture for improved indoor comfort during humid conditions.
- Clean Wall-Mounted Profile - Compact indoor design blends easily into residential living spaces without taking up floor area.
Technical Specifications and Warranty Coverage
- Model Number: DIY-12-HP-WMAH-230D25-O
- Cooling Capacity: 12,000 BTU/h
- Heating Capacity: 12,000 BTU/h
- Recommended Coverage: Up to 550 sq. ft.
- Power Supply: 208–230V, 60Hz, Single Phase
- Minimum Circuit Ampacity: ~4 A
- Maximum Fuse Size: 15 A
- Refrigerant Type: R-454B
- Line Set Size: 1/4" Liquid x 3/8" Gas
- Control Options: Remote, SmartHVAC App, Alexa, Google Assistant
- Mounting Type: Wall-Mounted
- Dimensions (W × D × H): Approx. 31.5" × 7.5" × 11.75"
- Net Weight: Approx. 20–22 lbs
- Certification: ETL Listed (Intertek #5031495)
Warranty Coverage
- Compressor: 7-Year Warranty
- Parts: 5-Year Warranty
- Optional Lifetime Replacement: Available with MRCOOL® Care Program enrollment
Frequently Asked Questions
Is this a complete ductless mini split system?
No. This is an indoor air handler only and must be paired with a compatible MRCOOL DIY® 5th Gen multi-zone condenser.
What room size is this air handler best for?
It is designed for spaces up to 550 square feet, such as living rooms, large bedrooms, or home offices.
Can this connect to older MRCOOL systems?
No. This unit uses R-454B refrigerant and is only compatible with MRCOOL DIY® 5th Gen R-454B systems.
Does this unit support smart controls?
Yes. It works with the SmartHVAC app and supports Alexa and Google Assistant voice control.
Best Price Guarantee!
Best Price Guarantee
You'll get the best price available at Wild Oak Trail! We'll match anyone who has it lower!
We love to chat! Give us a call and we'll see what we can do to get you the best deal!
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The Price Match Guarantee is based on the final price of the product including shipping and taxes
Why Buy From Us
Why Buy From Wild Oak Trail?
We’re a family-run business. My Wife Hailey and I run this business with our small staff of 3 awesome people. When you shop with Wild Oak Trail, you're supporting real people, not a big corporation.
We truly care. We’re here before, during, and after your purchase. Good products and great service—that’s how we earn your trust. We see and celebrate EVERY sale that comes in!
We choose quality. If we wouldn’t use it ourselves, we won’t offer it. Our goal is to make you happy enough to tell your friends.
Thanks for supporting our family and being part of the Wild Oak Trail community!