The 5th Generation MRCOOL® DIY® 18K BTU Ductless Heat Pump Single Zone Mini-Split Air Handler delivers a powerful, energy-efficient solution for heating and cooling spaces up to 800 sq. ft. Designed for true DIY installation, this system eliminates the need for professional tools or help, making setup fast, affordable, and stress-free.
A key feature is the pre-charged 25-foot DIY® QuickConnect® line set, filled with R-454B refrigerant, which allows for a simple, vacuum-free installation. The included DIYPRO® cable replaces standard electrical conduit, providing enhanced protection against weather, animals, and outdoor hazards.
Controlling your system is convenient and flexible:
Built for durability, the outdoor unit features a Gold Fin® Condenser, offering superior corrosion resistance—ideal for coastal environments. Inside, the Follow Me function allows the unit to adjust airflow based on the location of the remote, ensuring even and consistent comfort throughout the room. The Dry Mode setting helps reduce humidity and prevents excess condensation for a healthier indoor environment.
This air handler is backed by an industry-leading warranty:
With smart technology, dependable performance, and a truly DIY-friendly design, the MRCOOL® DIY® 5th Gen Mini-Split is a top choice for year-round comfort and control.
Product Specifications:
| BRAND NAME |
MRCOOL |
| SERIES |
DIY 5th gen Single-Zone Mini-splits |
| MODEL |
DIY-18-HP-WMAH-230D25-O |
| GTIN |
840255587044 |
| UPC |
840255587044 |
| SHORT DESCRIPTION |
MRCOOL® 18k DIY 5th Generation Mini-split Air Handler 230v |
| 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 |
Yes |
| REMOTE CONTROL INCLUDED |
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) |
8.9 |
| NET HEIGHT (IN) |
13.19 |
| NET WIDTH (IN) |
42.52 |
| 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 |
