MRCOOL DIY12HPWMAH115C25 DIY 4th Generation 12000 BTU Wall Mount Air Handler with 25 ft DIY Pro Cable and Enhanced WiFi (Works with Alexa and Google Assistant)

DIY12HPWMAH115C25
$574.00
or $47.83/mo.* for 12 monthsLearn More
Loading product options...

RECOMMENDED ACCESSORIES

Product Details

Appearance

Color Family:White
Color:White

Dimensions

Width:31 57/100"
Depth:7 11/25"
Height:11 69/100"

Technical Details

Brand:MRCOOL
Series:DIY
Nominal BTU Capacity:12000
Cooling Area Sq Ft:550
Cooling BTU Capacity:12000
Heating BTU Capacity:12000
Smart Appliance:Yes
Wi/Fi:Yes
AHRI Certified:Yes
Voltage:115
Amps:25
Remote Controller:Included

DIY 12k 4th Gen E Star Air Handler - 115V

The MRCOOL DIY 4th Gen 12K BTU Wall Mount Air Handler (DIY-12-HP-WMAH-115C25) is an ultra-efficient ductless mini-split system designed to provide both cooling and heating for spaces up to 500 sq. ft. With its 12,000 BTU capacity, this unit ensures year-round comfort in a variety of climates.

Enjoy the convenience of WiFi control via the SmartHVAC® app, which lets you manage the system from anywhere using your Apple or Android device. Plus, the air handler integrates seamlessly with Amazon Alexa and Google Assistant, enabling voice control for a truly connected smart home experience.

The DIY Pro™ Cable enhances safety by protecting the unit’s wiring from outdoor elements, ensuring long-lasting performance. Operating at noise levels as low as 23.5 dBA, it delivers a quiet, peaceful atmosphere.

Installation is a breeze with its wall-mount design.

Backed by industry-leading protection when enrolled in the Cool Care Program—including limited lifetime compressor coverage, a 7-year unit replacement program, and 5 years of parts coverage.

Lightweight at just 24.03 lbs, this energy-efficient unit operates at 115V, 60Hz, making it the perfect solution for all your heating and cooling needs.

SmartHVAC App with WiFi Control 
Operate your DIY system remotely using your Apple or Android device with an internet connection.

Comprehensive Warranty 
Comes with a 7-year compressor and 5-year parts warranty; register for a limited lifetime compressor warranty.

Smart Home Compatible 
Seamlessly integrates with Amazon Alexa and Google Assistant for voice control.

DIY Pro™ Cable for Enhanced Safety 
Protects wiring from exposure to outdoor elements.

Key Features

Ul Listed
Ul Listed
Tested to ensure safety by UL (Underwriters Laboratories)
Energy Star.
Energy-efficient to help you save money without sacrificing performance
ENERGY STAR Certified

Support Resources

Contact Support

Need help with your product? Our support team is ready to assist you.

Call us: (888) 800-8050

Why Us

Flexible Monthly Financing with Affirm

Split your purchase into easy payments over time—interest-free or with simple interest depending on your plan and eligibility.

Get Free In-Home Delivery on Orders $599+

We offer free in-home delivery to most serviceable zip codes for orders over $599.

Membership Club

Our Online Members-Only Price Includes*:
Extended Warranty
Free Installation
Bonus Rewards

3 Level Rebate

Manufacturer rebates, instant savings, and product discounts — all in one place.

Customize your Coverage

Choose a 3- or 5-year protection plan—get 50% back if you don't use it.

Price Match Guarantee

If you find a lower price on an identical item from a local competitor or select online retailers, we will match it.

Customer Reviews