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  • MRCOOL DIY 5th Gen 12K 12000 BTU Single Zone Ductless Mini Split Condenser with 25 ft line set 115V - DIY-12-HP-C-115D25-O

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MRCOOL DIY 5th Gen 12K 12000 BTU Single Zone Ductless Mini Split Condenser with 25 ft line set 115V - DIY-12-HP-C-115D25-O

1 review
SKU DIY-12-HP-C-115D25-O
Regular price
$1,591.00
Checking availability...

 
 

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MRCOOL DIY 5th Gen 12K 12000 BTU Single Zone Ductless Mini Split Condenser with 25 ft line set 115V - DIY-12-HP-C-115D25-O

1 review
SKU DIY-12-HP-C-115D25-O
MRCOOL DIY 5th Gen 12K 12000 BTU Single Zone Ductless Mini Split Condenser with 25 ft line set 115V - DIY-12-HP-C-115D25-O

Description

MRCOOL DIY 5th Gen 12K 12000 BTU Ductless Mini Split Condenser 115V

The 5th Generation 5th Generation MRCOOL® DIY® 12k BTU 23.5 SEER Ductless Heat Pump Single Zone Mini Split Condenser makes home climate control easier than ever. Designed for effortless installation, this system requires no special tools or professional experience and is ideal for spaces between 350-500 sq. ft.

With a pre-charged 25-foot QuickConnect® line set filled with R-454B refrigerant, setup is simple and eliminates the need for vacuuming. The included DIYPRO® cable enhances durability, replacing traditional electrical conduit to protect against weather, animals, and yardwork damage.

Controlling your comfort is seamless with multiple options, including the included remote, the SmartHVAC app for Apple and Android devices, or hands-free commands via Amazon Alexa and Google Assistant. Additionally, the Gold Fin Condenser provides exceptional corrosion resistance, making it a great choice for coastal environments. Equipped with a variety of features, this system enhances efficiency and comfort. The Timer function helps manage energy use, while Auto mode maintains your desired temperature without constant adjustments. After a power outage, the system automatically resumes previous settings, and the anti-mildew function reduces condensation buildup in the air handler. Built for longevity, the 5th Generation

MRCOOL® DIY® Mini Split offers an industry-leading warranty, including a limited lifetime warranty, plus a 7-year compressor and 5-year parts warranty. Combining advanced technology, user-friendly operation, and long-term reliability, this system is designed for hassle-free home comfort.

Features
  • 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.

Specifications

SERIES

DIY 5th gen Single-Zone Mini-splits

MODEL

DIY-12-HP-C-115D25-O

SEER2

23.5

EER2

12.5

HSPF2-4

10.2

HSPF2-5

7.6

TONNAGE

1

COOLING CAPACITY (BTU)

12000

HEATING CAPACITY (BTU)

12000

VOLTAGE (V)

115

PHASE

1

CYCLE

60

MAX FUSE BREAKER (A)

20

MIN CIRCUIT AMPACITY (A)

18

COLOR

White

ZONE CAPACITY

1

REFRIGERANT TYPE

R-454B

REFRIGERANT VOLUME (OZ)

30.34

DECIBEL RATING (DBA)

54

INVERTER

DC

LINE SET LENGTH

25

MAX LINESET LENGTH (FT)

82

LIQUID LINE SIZE

1/4

SUCTION LINE SIZE

3/8

COMPRESSOR MOTOR TYPE

Rotary

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

Yes

UL LISTED

Yes

ETL LISTED

Yes

ENERGY STAR CERTIFIED

Yes

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 DEPTH (IN)

11.93

NET HEIGHT (IN)

21.85

NET WIDTH (IN)

30.12

NET WEIGHT (LBS)

83.11

GROSS DEPTH (IN)

16.54

GROSS HEIGHT (IN)

27.56

GROSS WIDTH (IN)

36.22

GROSS WEIGHT (LBS)

65.48

 

Installation & Guides

Installation Manual

MRCOOL Brochure

Remote Manual

Warranty Documents

Accessories Manual


Let customers speak for us

from 57 reviews
MRCOOL DIY Select 24,000 BTU 16.5 SEER2 Ductless Mini Split System - R454B - 230V
Tom J.
Arrived on time and well packed.

I purchased the MRCOOL DIY Select 24,000 BTU system for my large living area, and it has been working great. It cools the room quickly, maintains a comfortable temperature, and runs much quieter than I expected.

MRCOOL DIY Select 24,000 BTU 16.5 SEER2 Ductless Mini Split System - R454B - 230V
07/28/2026
MRCOOL DIY Easy Pro 18,000 BTU 20 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
Jim
Directions

Fairly easy to install some directions said to use 3 1/2” hole but on template it was 2 1/2” which is what I used. Some of the other directions not to clear, still not sure where the little black filter goes?

MRCOOL DIY Easy Pro 18,000 BTU 20 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
08/29/2025
MRCOOL DIY Easy Pro 18,000 BTU 20 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
Brian J.

Perfect for our small apartment. Simple setup, great airflow, and very quiet.

MRCOOL DIY Easy Pro 18,000 BTU 20 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
07/29/2025
MRCOOL DIY 5th Gen E Star 12,000 BTU 23.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
Emily T.

Great system, but I wish the Wi-Fi app was a little more polished. Otherwise, no complaints.

MRCOOL DIY 5th Gen E Star 12,000 BTU 23.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
07/28/2025
MRCOOL DIY Easy Pro 9,000 BTU 20.2 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
Paul G.

Nice little unit. It’s not as powerful as the larger ones of course, but for a small room, it does the job well.

MRCOOL DIY Easy Pro 9,000 BTU 20.2 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
07/27/2025

What customers think about the store

Store offers efficient DIY HVAC systems with fast shipping and complete installation kits. Customers praise easy setup, energy savings, quiet operation, and reliable cooling/heating performance. Strong value for money with helpful instructions. Units suitable ... Store offers efficient DIY HVAC systems with fast shipping and complete installation kits. Customers praise easy setup, energy savings, quiet operation, and reliable cooling/heating performance. Strong value for money with helpful instructions. Units suitable for various room sizes from small bedrooms to large living areas.

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AI-generated from customer reviews.

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Customers rate us 4.9/5 based on 57 reviews.
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