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MRCOOL DIY 5th Gen 12K BTU Single-Zone Mini-Split – Model DIY-12-HP-WM-115D25-O

Special Price $99.00 Regular Price $100.00
Out of stock
SKU
DIY-12-HP-WM-115D25-O
Manufacturer:
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Product Description

When space is limited, efficiency matters more. In smaller rooms, constant adjustments and uneven airflow can quickly become uncomfortable. The DIY-12-HP-WM-115D25-O delivers focused 12,000 BTU performance for areas up to 500 sq. ft., combining manageable installation with steady climate control.

MRCOOL developed the DIY 5th Generation series to simplify installation without compromising performance. A pre-charged Quick Connect® line set and reinforced DIYPRO® cable reduce setup complexity while supporting long-term durability. This MrCool DIY 5th Gen 12k Btu Ductless Mini-Split Heat Pump is built around independence and reliable operation.

With 12,000 BTU of heating and cooling capacity, this 12K BTU system is designed for rooms up to 500 sq. ft. The inverter-driven compressor adjusts output smoothly to reduce temperature swings and unnecessary cycling. Gold Fin® corrosion protection enhances durability in humid or coastal environments, while standard 115V compatibility allows installation without major electrical modifications. For homeowners evaluating the best DIY Mini Split Heat Pump in this size category, it offers a balanced combination of efficiency and practical setup.

Temperature control is flexible and straightforward. Adjust settings using the included remote, the SmartHVAC mobile app, or voice commands through Amazon Alexa and Google Assistant. Features such as Follow Me®, Auto mode, and scheduling help maintain comfort with minimal manual effort.

Customer feedback, “After installing it, the room reached a comfortable temperature faster than our previous unit. It runs quietly, and we don’t have to constantly change the settings.”

Once installed, the system operates quietly and maintains steady output without frequent adjustments. Backed by extended warranty coverage, it’s built for consistent, long-term operation.

For homeowners seeking simple installation and reliable comfort in a compact room, the mrcool diy 5th gen 12k btu provides a practical and efficient solution.

Product Highlights

Highlight

Details

Simplified DIY Setup

Pre-charged Quick Connect® line set helps streamline installation without specialized HVAC equipment.

Compact 12,000 BTU Output

Suitable for bedrooms, offices, or other rooms up to 500 sq. ft.

Efficient Performance

22+ SEER efficiency supports steady comfort with controlled energy usage.

Inverter-Driven Compressor

Variable-speed operation adjusts output smoothly to prevent temperature swings.

Eco-Friendly Refrigerant

Uses R-454B refrigerant designed for improved environmental performance.

Reinforced DIYPRO® Cable

Durable cable replaces traditional conduit and protects system connections.

Remote & App Access

Temperature and modes can be adjusted using the remote or SmartHVAC mobile app.

Voice Integration

Compatible with Amazon Alexa and Google Assistant for hands-free control.

Corrosion Protection

Gold Fin® coating improves resistance to humidity and environmental wear.

MRCOOL DIY 5th Gen 12K BTU Single-Zone Mini-Split – Model DIY-12-HP-WM-115D25-O Specs

Category Specification Details
General Type Bundle - includes Condenser, Air Handler, Quick Connect Line Set, Cable
  Mount Type Wall
  Compatibility Wi-Fi / App / Remote / Android / iOS
Performance Tonnage 1
  Cooling Capacity (BTU) 12000
  Heating Capacity (BTU) 12000
  Maximum Coverage Area (sq ft) 550 sqft
  Inverter DC
  Decibel Rating (dBA) 54
  Zone Capacity 1
  Number of Speeds 5
Efficiency SEER2 23.5
  EER2 12.5
  HSPF2-4 / HSPF2-5 10.2 / 7.6
Refrigeration Refrigerant Type R-454B
  Max Line Set Length (ft) 82
Electrical Phase 1
  Cycle (Hz) 60
  Max Fuse Breaker (A) 20
  Min Circuit Ampacity (A) 18
Filters Filter Type Reusable
Certifications Certifications AHRI / Energy Star
Warranty Warranty 5-year Parts / 7-year Compressor
Safety Contains Compressed Gas Yes
  Has Batteries Yes
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Frequently Asked Questions

  • A 12,000 BTU system generally works well in rooms up to 500 square feet, depending on insulation quality, ceiling height, and regional climate conditions.