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MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-O

SKU DIY-12-HP-WM-115D25-O

by MRCOOL
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$1,929.00

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MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-O

Picture this: You’ve got a client who needs efficient, year-round comfort for a home office, rental suite, or boutique retail space—something that delivers quiet, reliable performance and won’t tie up your crew for days. With the MRCOOL DIY® 5th Gen 12,000 BTU Single Zone Mini Split, you’re not just meeting expectations—you’re exceeding them, project after project.

You want fast installs, happy customers, and a system that’s as reliable as your reputation. The MRCOOL DIY® 12K BTU Mini Split is designed for pros who take pride in delivering premium results, with features that make every job smoother and every client more satisfied.

  • Effortless DIY Installation: The 25 ft. QuickConnect® line set comes pre-charged with R-454B refrigerant—no vacuum pump, no specialized tools, no headaches. The DIYPRO® cable means no electrical conduit needed, saving you time and labor costs.
  • Ideal for Smaller Spaces: Perfectly sized to heat and cool areas from 350 to 500 sq. ft.—think bedrooms, studios, offices, or small retail spaces.
  • Smart, Connected Comfort: Your clients can control their comfort from anywhere—remote, smartphone app, or even with their voice (Alexa and Google Assistant compatible). Offer a modern experience that sets you apart from the competition.
  • Built to Last: The Gold Fin® condenser stands up to tough conditions, including coastal environments, ensuring your installs perform for years to come.
  • Eco-Friendly & Efficient: The R-454B refrigerant is a forward-thinking choice, offering lower Global Warming Potential and higher energy efficiency—something today’s clients value highly.
  • Industry-Leading Warranty: Stand behind your work with confidence thanks to a limited lifetime warranty, 7-year compressor coverage, and 5-year parts protection.
  • Tool-free, rapid installation—keep projects moving and labor costs low
  • Dry Mode—dehumidifies for healthier, more comfortable air
  • Follow Me Function—personalized temperature control based on remote location
  • Certified safe and reliable—Intertek listed for peace of mind

You finish the install quickly, your client enjoys precise, whisper-quiet comfort, and your business earns a reputation for delivering smart, efficient solutions that last. With MRCOOL DIY®, you’re not just installing an HVAC system—you’re building trust and growing your bottom line.

Deliver comfort, efficiency, and modern convenience—choose MRCOOL DIY® 5th Gen 12K BTU for your next project and watch your business thrive.

 

Dimensions & Weight
Condenser Dimensions 30.12 W" x 11.93 D" x 21.85 H"
Air Handler Dimensions 31.57 W" x 7.44 D" x 11.69 H"
Condenser Weight 65.48 lbs / 29.7 kg
Air Handler Weight 24.91 lbs / 11.3 kg

DIY-12-HP-WM-115D25-O Capacity & Performance

Zone Capacity 1
Cooling Capacity 12,000 BTU
EER2 12.5
SEER2 23.5
Heating Capacity 12,000 BTU
HSPF2-4 10.2
HSPF2-5 7.6
Coverage Area 350 to 500 sq ft.
Outdoor Noise Level 54 dB(A)
Indoor Noise Level (Hi/Mi/Lo) 43.0/39.5/33.5/24.0/18.0 dB(A)
Electrical Requirements
Voltage 115V
Phase 1
Cycle 60 Hz
Max Fuse Breaker 20A
Min Circuit Ampacity 18A
Refrigerant & Piping
Refrigerant Type R-454B
Refrigerant Volume 30.34 oz
Liquid Line Size 1/4"
Suction Line Size 3/8"
Max Line Set Length 82 ft.

DIY-12-HP-WM-115D25-O Features

Inverter DC
Compressor Type Rotary
Fan Only Option Yes
Quiet Mode Yes
Auto Cool Yes
Wifi Compatibility Yes
App Compatibility Yes
Works with IOS Yes
Works with Android Yes
Remote Control Included Yes

DIY-12-HP-WM-115D25-O Certifications & Warranty

Certifications UL Listed, ETL Listed, Energy Star Certified, AHRI Certified
Warranty 7 Years Compressor
5 Years Parts
Extended Limited Lifetime Replacement
*If the original owner does not register the unit, the warranty defaults to the standard 5 year parts, 7 year compressor warranty
**The original, registered owner must be enrolled in the MrCool Care Program every year in order to qualify for the 7 year full unit replacement for compressor failure and lifetime compressor replacement.

 

INSTALLATION & GUIDES

Product Brochure
Installation Manual
Remote Control Manual
Warranty Document
AHRI Certificate
Energy Guide

 

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Frequently Asked Questions About MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-O

Most Frequently Asked Questions

Other Questions

Product Overview

  • Zone / ROOM:

    Zone / ROOM: 1 Zone

  • Air Handler BTU:

    Air Handler BTU: 12k

  • Coverage Area:

    Coverage Area: 500 sq.ft

  • Condenser BTU:

    Condenser BTU: 12k

  • Outdoor Operating Temp (Cool/ heat):

    Outdoor Operating Temp (Cool/ heat):

  • Warranty

    Warranty

MRCOOL DIY® 5th Gen E Star 12,000 BTU Single Zone Mini Split Complete System with 25ft. Line Set 115V, DIY-12-HP-WM-115D25-O Reviews