MRCOOL DIY® 5th Gen E Star 18,000 BTU Multi Zone Mini Split Air Handler 230V (DIY-18-HP-WMAH-230D25-O)

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MRCOOL DIY® 5th Gen E Star 18,000 BTU Multi Zone Mini Split Air Handler 230V (DIY-18-HP-WMAH-230D25-O)

Name: MRCOOL DIY® 5th Gen E Star 18,000 BTU Multi Zone Mini Split Air Handler 230V (DIY-18-HP-WMAH-230D25-O)
Brand: MRCOOL
SKU: DIY-18-HP-WMAH-230D25-O
Price: 931.0 USD
Availability: InStock
Rating: 4.84 (45 reviews)

| Authorized Dealer

SKU: DIY-18-HP-WMAH-230D25-O

$931.00 $1,099.00

BTUs

12K 12K
18K 18K
24K 24K
36K 36K

In Stock Estimated delivery: Jul 4th-13th

Only available for purchase with second MRCOOL product.

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Free Shipping*
30-Day Return Policy⁺

The 5th Generation MRCOOL® DIY® 18k BTU Ductless Heat Pump Single Zone Mini-Split Air Handler delivers powerful, energy-efficient heating and cooling for spaces up to 800 sq. ft. Designed for easy, tool-free installation, this system requires no professional experience, specialized tools, or costly service calls—making it a fast and affordable comfort solution for homeowners.

This model features the rugged DIYPRO® cable, which eliminates the need for traditional electrical conduit while offering added durability and protection against outdoor elements, animals, and harsh weather conditions. Installation is not only simplified but also built to last. You can manage your comfort your way. Use the included wireless remote, connect through the SmartHVAC app available on iOS and Android devices, or control the system using voice commands via Amazon Alexa and Google Assistant. The Gold Fin® condenser coating enhances corrosion resistance, making the unit a great fit for coastal or high-humidity areas.

The system also includes advanced comfort features. Follow Me® technology senses the temperature around the remote and adjusts airflow accordingly, ensuring consistent comfort where you are. Dry Mode reduces humidity for better air quality and comfort. To protect your investment, MRCOOL® offers a strong 7-year compressor and 5-year parts warranty, and is also eligible for the MRCOOL® Care Program. Experience hassle-free installation, advanced features, and reliable year-round comfort with the MRCOOL® DIY® 18k Mini-Split Air Handler.

Features

Intertek listed 5031495
Easy DIY installation
Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

Dimensions	8.9" D x 13.19" H x 42.52" W
Tonnage	1.5
Voltage (V)	208/230
Phase	1
Cycle	60
Max Fuse Breaker (A)	15
Min Circuit Ampacity (A)	3
Mount Type	Wall
Color	White
Max Coverage Area	800 sqft
Decibel Rating Low (DBA)	19
Decibel Rating High (DBA)	54.5
Number of Speeds	5
Oscillation	Yes
Liquid Line Size	1/4
Suction Line Size	1/2
Filter Type	Reusable
Auxiliary Heater Included	No
Auxiliary Heater Available	No
Fan Only Option	Yes
Quiet Mode	Yes
Auto Cool	Yes
WIFI Compatibility	Yes
APP Compatibility	Yes
Works with IOS	Yes
Works with Android
Remote Control Included	Yes
UL Listed	Yes
ETL Listed	Yes
Energy Star Certified
AHRI Certified	Yes
Registered Warranty	Extended Limited Lifetime*
Base Parts Warranty	5
Base Compressor Warranty	7
Has Batteries	Yes
Contains Electronics	Yes
Contains Chemicals	Yes
Contains Aerosol	Yes
Contains Compressed Gas	Yes
Proposition 65 Warning	Yes
Net Weight (Lbs)	35.49
Gross Depth (In)	17.68
Gross Height (In)	14.29
Gross Width (In)	46.73
Gross Weight (Lbs)	49.6

*Shipping Policy

Free Shipping on all orders.
Large Appliances: Ship via Curbside Delivery — the carrier delivers to your property but not inside your home.
Small Items: Ship via standard ground delivery (FedEx or similar), such as small appliances, range hoods, sinks, faucets, and accessories.
See our Shipping Page for full details

⁺Return/Refund Policy

30-Day Return Policy: Return requests must be submitted within 30 days of your delivery date. We cannot process returns after this period.
Return Requirements: Products must be unused, uninstalled, and in their original packaging (including box and pallet) to qualify.
Restocking Fee: A restocking fee may apply and varies by brand. Please see our Return Policy Page for full details.

Browse MRCOOL Products

Excellent price, great service

No muss, no fuss. 1 call about extended warranty which I declined. Otherwise just straight forward drop shipment to curb, on time and as expected. All items in perfect shape, no breaks or rips in boxes.
The items (Mr. Cool 27k 3 head 9k/9k/12k DIY) installed great, easy to follow instructions. 1 wall insert was slightly cracked due to no packing material in the line box, but I it taped up and it inserted fine. Could have used more custom sized lines for fitting but otherwise very happy with product.

Perfect for our needs!

I ordered a 2 zone unit for the bedrooms in our home. It took a few months to arrive (manufacturer issue, nothing to do with HOD, and we were contacted on more than one occasion with an order update which was much appreciated!), but when it did arrive was very easy to install. Both the heat and AC function work perfectly, and our family is very happy!

Decent Company

I ordered a HVAC system and it arrived in a timely manner and with no apparent issues. I thought the system was defective once installed but it was the installers fault who wired it wrong. My only issue would be the fee (30% I believe) to return a defective item within the 30 day return policy. If it is defective the customer shouldn't have to pay a fee to return an item that is not operating as designed. Other than that this is a good company.

Pretty Easy Install and Works Great!

Installed my own central HP system. It was a bit of work but nothing beyond a person with basic mechanical and electrical skills. It took me a while because I had to remove the existing electric forced air furnace from a pretty tight place. Some custom sheet metal work and a bit of custom electrical too. Worked perfectly when powered up and I actually like the thermostat provided, although I wish it was clearer how to set up a temperature set-back schedule. Pre-charged refrigerant piping was something new and I liked that too. The best thing is that my electric utility forked out $4,000 and that paid for the unit!