MRCOOL E Star DIY 4th Gen 18k BTU Ductless Mini-Split Air Handler - DIY-18-HP-WMAH-230C25

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SKU: DIY-18-HP-WMAH-230C25
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Sale price$724.00 Regular price$959.00


MRCOOL E Star DIY 4th Gen 18k BTU Ductless Mini-Split Air Handler - DIY-18-HP-WMAH-230C25

The MRCOOL4th Generation DIY 18K BTU Ductless Wall Mounted Air Handler is one of the most capable on the market. When part of a MRCOOL DIY system, it can reach an effective 22 SEER efficiency rating and deliver that performance to an area up to 750 sq. ft.

This air handler is also very versatile because of its many different operating modes, these include, COOL, HEAT, AUTO, DRY (dehumidify), and SLEEP. It also has the ability to be controlled from anywhere using an Apple or Android smartphone with our convenient Smart HVAC app.

This air handler is very compact and relatively light, so it can easily be mounted to most interior walls using the included mounting plate. The ease of installation does not stop there, as it is designed to be used along with the MRCOOL Pre-Charged Quick Connect Line Set.

This allows the installer to easily connect the refrigerant piping, which is precharged with the correct amount of R-410A refrigerant, with the use of simple hand tools. This also means the system will not require any vacuuming once the line set is connected. The MRCOOL DIY 18K BTU Ductless Wall Mounted Air Handler has the performance to handle your home comfort needs.


  • SmartHVAC app: WIFI control - control your DIY anywhere with your Apple or Android smart device and an Internet connection
  • Standard 7-year compressor/5-year parts warranty; register for limited lifetime compressor warranty
  • Compatible with Amazon Alexa and Google Assistant
  • Includes the new DIY Pro™ Cable, an added safety feature to protect the wiring from the outside elements
  • This product ONLY includes the Air Handler. You must add an outdoor unit - condenser and a line set to fully complete the system


Product Dimensions 42.52"W x 8.90"D x 13.19"H
Product Weight 34.61 lbs
Cooling Capacity 18000 BTU
Heating Capacity 18000 BTU
Voltage Requires a minimum of 208V-230V/60HZ/18-30A (please check your home meets this electrical requirement prior to purchase)
Phase 1
Cycle 60 Hz
Mount Type Wall
Color White
Max Coverage Area Up to 750 sqft
Refrigerant Type R-410A
Decibel Rating 44.5/37/31
Decibel Rating Low 31 dBA
Decibel Rating High 44.5 dBA
Inverter Yes
Max Lineset Length 98.42 ft
Liquid Line Size 1/4 in
Suction Line Size 1/2 in
Blower Motor RPM 1120/950/700
Modes Fan Only
Quiet Mode
Auto Cool
Wifi Compatibility Yes
App Compatibility Yes
Compatible with IOS
Includes Remote
Certifications Energy Star
Warranty 5-year Parts/7-year Compressor
Restricted States GU;PR;VI



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