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MRCOOL DIY 5th Gen 9K BTU Single-Zone Mini-Split – Model DIY-09-HP-WM-115D25-O

Special Price $99.00 Regular Price $100.00
Out of stock
SKU
DIY-09-HP-WM-115D25-O
Manufacturer:
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Product Description

In spaces meant for rest or focus, background noise and uneven airflow quickly become noticeable. A system should operate quietly and predictably without drawing attention to itself. The DIY-09-HP-WM-115D25-O delivers focused 9,000 BTU performance for areas up to 350 sq. ft., providing controlled heating and cooling with efficient energy use.

The 5th Generation design prioritizes independent installation. A pre-charged Quick Connect® line set eliminates vacuuming and refrigerant handling, while the reinforced DIYPRO® cable replaces traditional conduit for added durability. As a MRCOOL DIY ductless heat pump split system, it simplifies setup without compromising long-term reliability.

With up to 23.6 SEER efficiency, this MRCOOL DIY 9K BTU  unit uses inverter-driven technology to adjust output gradually instead of cycling aggressively. The result is smoother operation, reduced temperature fluctuations, and improved energy control. Gold Fin® corrosion protection further strengthens performance in humid and coastal environments.

Control options are designed for convenience. Adjust settings through the included remote, the Smart HVAC mobile app, or voice commands via Amazon Alexa and Google Assistant. Features such as Auto mode, Timer, Follow Me®, and power outage memory help maintain stable comfort with minimal day-to-day adjustments.

One customer noted,
“After being disappointed with a previous unit, we installed this in our home office. And honestly, the improvement was immediate — faster cooling, quieter operation, and no constant adjustments.”

This experience shows how the system delivers reliable comfort without added hassle. Rather than adjusting controls throughout the day, it maintains balanced performance on its own.

For spaces where efficiency and straightforward installation matter most, the system offers controlled performance with modern flexibility. It brings together precise output and practical setup in one streamlined system.







Key Specifications

Feature

Details

Model

DIY-09-HP-WM-115D25-O

System Type

Single-Zone Ductless Mini-Split Heat Pump

Capacity

9,000 BTU (Cooling & Heating)

Coverage Area

Up to 350 sq. ft.

Voltage

115V

Energy Efficiency

Up to 23.6 SEER

Refrigerant

R-454B

Compressor

Variable-Speed Inverter

Installation

DIY (Pre-Charged Quick Connect® Line Set Included)

Control Options

Remote & SmartHVAC App with Voice Support

Corrosion Protection

Gold Fin® Coating

Warranty

Limited Lifetime / 7-Year Compressor / 5-Year Parts

 

Product Highlights

Highlight

Details

DIY Installation Design

Pre-charged Quick Connect® line set simplifies installation without specialized HVAC tools.

9,000 BTU Capacity

Designed to heat and cool smaller rooms up to 350 sq. ft.

High Energy Efficiency

Delivers up to 23.6 SEER for efficient performance and lower energy consumption.

Variable-Speed Inverter Compressor

Adjusts output gradually to maintain stable indoor temperatures.

R-454B Refrigerant

Modern refrigerant designed to support improved environmental performance.

DIYPRO® Cable

Reinforced cable replaces traditional conduit for added durability and protection.

SmartHVAC App Control

Adjust temperature and system settings remotely using the mobile app.

Voice Assistant Compatibility

Supports control through Amazon Alexa and Google Assistant.

Gold Fin® Protection

Corrosion-resistant coating improves durability in humid environments.

MRCOOL DIY 5th Gen 9K BTU Single-Zone Mini-Split – Model DIY-09-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 0.75
  Cooling Capacity (BTU) 9000
  Heating Capacity (BTU) 10000
  Maximum Coverage Area (sq ft) 400 sqft
  Inverter DC
  Decibel Rating (dBA) 54
  Zone Capacity 1
  Number of Speeds 5
Efficiency SEER2 23.6
  EER2 14
  HSPF2-4 / HSPF2-5 11.5 / 8.6
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 9,000 BTU ductless mini-split system is typically suitable for rooms up to 350 square feet, depending on insulation quality, ceiling height, and local climate conditions.