Skip to content
Home > MRCOOL > MRCOOL DIY® 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler 230V, DIY-12-HP-WMAH-230D25-O

MRCOOL DIY® 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler 230V, DIY-12-HP-WMAH-230D25-O

MRCOOL  | Authorized Dealer  |  SKU: DIY-12-HP-WMAH-230D25-O

Original price $689.00 - Original price $689.00
Original price
$689.00
$689.00 - $689.00
Current price $689.00
+ FREE SHIPPING

0% APR financing available with Affirm — up to 12 months on purchases under $2,000, up to 24 months over $2,000. Subject to credit approval. See financing details

Availability:
In stock
In stock - Ready to Ship
On backorder - reserve yours today
Ships direct from MRCOOL
Out of Stock
Free Curbside Delivery
Estimated Arrival: Oct 19 to Oct 27
Ships as soon as MRCOOL restocks. Call (866) 412-1837 for today's ETA before you order.
A specialist confirms your lead time before it ships. Questions? (866) 412-1837
Authorized
Dealer
Free Shipping
on most orders
Price Match
Guarantee
Full Mfr
Warranty
4.8/5 from 2,462 InnovDepot customer reviews
Secure checkout American Express Apple Pay BancontactDiners ClubDiscoverGoogle Pay iDEAL Wero
Questions before you order? Talk to a real specialist: (866) 412-1837

MRCOOL sets a minimum advertised price, so this is the same price every authorized dealer shows. We compete on service instead: freight handled properly, honest lead times, and a specialist who picks up the phone.

Get Expert Pricing Call a Specialist — (866) 412-1837

Talk to a real specialist about pricing, freight and lead time. Mon to Fri 9AM to 9PM ET, Sat and Sun 10AM to 6PM ET. Call or text (866) 412-1837.

Shipping & delivery on this item

  • Leaves the warehouse in 2 to 3 business days. You get a tracking number by email within 24 hours of dispatch.
  • Then 5–10 business days in transit. Times vary by distance and weight.
  • Ships from a US warehouse. Carriers are UPS, USPS or FedEx.
  • Inspect it before you sign. If the freight is visibly damaged, note it on the delivery receipt and refuse it. Email support@innovdepot.com the same day with photos (we usually need 3–5) and we replace it.
  • We cannot deliver to a PO Box.

Need it by a certain date, or not ready for delivery yet? Call (866) 412-1837 — in most cases we can hold the item and start processing later. Full shipping policy

Want today's MRCOOL prices but not ready for delivery?

No problem! All orders receive special attention and in most cases we can hold items and begin processing at a later date! Please contact us for more details!

MRCOOL DIY 5th Gen 12,000 BTU Multi-Zone Mini Split Air Handler

Bring powerful, energy-efficient heating and cooling to your space with the 5th Generation MRCOOL® DIY® 12,000 BTU Multi-Zone Mini Split Air Handler. Ideal for rooms up to 550 sq. ft., this advanced system makes comfort easy to achieve with smart controls, a simple DIY installation, and dependable performance backed by an industry-leading warranty.


12,000 BTU Smart Air Handler Features

  • DIY Installation: Designed for effortless, tool-free setup—no professional needed.

  • Quick Connect® Line Set: Arrives pre-charged with R-454B refrigerant for fast, vacuum-free installation.

  • Eco-Friendly Refrigerant: R-454B has lower Global Warming Potential compared to older refrigerants.

  • DIYPRO® Cable: No conduit required, with enhanced protection against weather and pests.

  • Smart Controls: Adjust temperature with the remote, SmartHVAC app, or voice commands via Alexa and Google Assistant.

  • Follow Me Function: Automatically tailors comfort by sensing the remote’s location.

  • Dry Mode: Operates as a dehumidifier to improve indoor air quality.

  • Trusted Warranty: Includes a 7-year compressor warranty, 5-year parts warranty, and lifetime replacement option with MRCOOL® Care enrollment.


MRCOOL 12K BTU Air Handler Specifications

Capacity & Performance

  • Cooling Capacity: 12,000 BTU

  • Heating Capacity: 12,000 BTU

  • Coverage Area: Up to 550 sq. ft.

Electrical Requirements

  • Voltage: 208–230V

  • Phase: 1

  • Frequency: 60 Hz

Dimensions & Weight

  • Mount Type: Wall

  • Weight: 24.47 lbs

Refrigerant & Piping

  • Refrigerant Type: R-454B

  • Liquid Line Size: 1/4"

  • Suction Line Size: 3/8"

Features

  • Fan Only Mode

  • Quiet Mode

  • Auto Cooling

  • WiFi Compatibility

  • iOS and Android App Compatibility

  • Remote Control Included

Certifications & Warranty

  • UL Listed

  • ETL Listed

  • AHRI Certified

  • 7-Year Compressor Warranty

  • 5-Year Parts Warranty

  • Limited Lifetime Replacement Option


MRCOOL DIY 12K Mini Split Installation Manual

Specifications

Model / SKUDIY-12-HP-WMAH-230D25-O
BrandMRCOOL

Comparing this against another model? Call (866) 412-1837 or request a spec comparison — a specialist will put the two side by side for you.

Get a Custom Quote

Request a custom quote with our quote form.

Here's how:

  1. Locate the Quote Form: You'll find it on every product page by scrolling down.
  2. Add Products as You Browse: It functions similarly to a shopping cart. Simply add items to your quote as you explore our products.
  3. Finalize Your Quote: Once you're finished, click 'Send' to submit your request.
  4. We will send a quote for you.

Need a bit more help? Read our Quote Form Tutorial or click the chat icon in the bottom right corner for live assistance.


Product Quantity

Thank you. We have received your quote request and will be in touch soon.

AUTHORIZED RETAILER FOR

>