MRCOOL

MRCOOL DIY 5th Gen 12,000 BTU Ductless Mini-Split Condenser 115V

Regular price  Sale price  $1,591.00 $1,591.00 Unit price  Sold out
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12K BTU23.5 SEER2~500 sq ftWi-FiComponent — not a full system

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  • Authorized MRCOOL dealer - full factory warranty

  • Free freight over $999 - ships in 1-2 business days

  • Real technical support from a certified HVAC pro

Product details

Installing your own HVAC system might sound overwhelming, but the 5th Generation MRCOOL® DIY® 12k BTU 23.5 SEER Ductless Heat Pump Single Zone Mini Split Condenser makes it simple and achievable. Designed specifically for easy installation, this system can efficiently heat or cool areas between 350 and 500 square feet-no professional tools or HVAC experience required.

Thanks to the 25-foot pre-charged Quick Connect® line set filled with R-454B refrigerant, setup is straightforward and doesn’t require vacuuming. It’s a cost-saving, do-it-yourself solution engineered for safety and simplicity.

You can control the system in multiple ways: use the included remote, the SmartHVAC app on iOS or Android, or voice commands via Amazon Alexa and Google Assistant. The built-in Follow Me® feature detects the temperature near the remote, adjusting output to match your location. For coastal homes, the Gold Fin® condenser coating provides rust-resistant protection, ensuring the system performs well over time.

Comfort and energy savings are built in, with modes like Auto, Sleep, and Timer, plus auto-restart after power outages. Once installed, you'll enjoy a full suite of smart and efficient features.

This model also comes with a base warranty that includes 7-year compressor/5-year parts coverage, along with eligibility for the MRCOOL® Care Program. With its advanced tech and user-friendly design, this unit offers both flexibility and long-term peace of mind.

  • NEEP ccASHP Listed
  • 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.
Shipping and Payments

We process orders within 1-2 business days. Once your order has shipped, you will receive a confirmation email with tracking information.

Estimated Delivery Times
Standard Shipping: 3-7 business days
Expedited Shipping: 2-3 business day
Express Shipping: 1-2 business days
Delivery times may vary during holidays, promotions, or due to carrier delays.

Order Tracking

Once your order ships, you will receive a tracking number via email. Please allow up to 24 hours for tracking information to update.

Refund and returns

We want you to love your purchase. If you're not completely satisfied, you may return eligible items within 30 days of delivery.

Return Requirements

Items must be:
Unused and in original condition

Returned with original packaging
Accompanied by proof of purchase
Non-Returnable Items

The following items cannot be returned:


Gift cards
Final sale items
Personalized or custom-made products
Digital products and downloads

Technical specifications

Specifications

Full engineering data for this system. Certified performance ratings per AHRI Standard 210/240.

Model DIY-12-HP-C-115D25-O
UPC 840255586955

Performance

Cooling capacity 12,000 BTU
Heating capacity 12,000 BTU
SEER2 23.5
HSPF2 10.2
EER2 12.5

Electrical

Voltage 115V / 60Hz
Circuit breaker 20 A
MCA (min. circuit ampacity) 18.0 A
MOCP (max. overcurrent) 20 A

Physical

Sound level (indoor) 54 dB
Line set length 82 ft
Line set pipe size 1/4" & 3/8"
Zones 1
Refrigerant R-454B

Features

Wi-Fi Yes
Smart features SmartHVAC® app (iOS & Android), Amazon Alexa, Google Assistant, Follow Me® remote

Warranty

Parts 5 years
Compressor 7 years

In the box

What's in the box

Condenser Outdoor unit
25 ft Quick Connect® line set Pre-charged with R-454B
DIYPro® communication cable No electrical conduit needed

DIY installation

Or book certified installation

Our licensed team installs what we sell - sized right, warrantied, done in a day.

Questions & answers

Before you buy

Everything homeowners ask about installing and sizing a MRCOOL system.

Can I DIY the install?

Yes. MRCOOL DIY systems ship with pre-charged QuickConnect line sets, so there is no refrigerant handling, no vacuum pump and no special tools. The MRCOOL app walks you through each step, and most homeowners finish a single-zone install in an afternoon.

What tools do I need?

A drill with a hole saw, a level, two wrenches and basic hand tools. The line set connects by hand and tightens with wrenches, and the mounting hardware is included.

Is a permit required?

Rules vary by county. Many areas allow a homeowner install with a simple permit, though the dedicated electrical circuit often needs a licensed electrician. Check your local code before you start.

What size do I need?

Match the BTU rating to the room you are conditioning. This listing shows its rated coverage in the specifications, and our system finder can size a room in about a minute.

MRCOOL DIY 5th Gen 12,000 BTU Ductless Mini-Split Condenser 115V

Regular price  Sale price  $1,591.00 $1,591.00

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