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Line Set: 25 Ft. Length

Includes indoor unit DIY-36-C-HP-230B, outdoor unit DIY-36-WMAH-HP-230B & DIY25-3858 - 25ft 3/8 x 5/8 Lineset for DIY 24K & 36K Indoor.

Do you want a powerful and efficient heating and cooling system that you can install yourself? Then the ideal product for you is the 3rd gen MRCOOL DIY ductless mini-split heat pump with enhanced Wi-Fi. Designed to make non-professional installation simple and easy, the 3rd gen MRCOOL DIY 36,000 BTU can be installed virtually anywhere without special tools or training. It features eco-safe refrigerant, 16 SEER performance, smart controls, great features, and the strongest DIY-warranty in the business. When it comes to doing it yourself, the MRCOOL is your best option. Not sure if you can do it? Please watch our simple install video. This product is shipped in two boxes.

  • Energy Efficient– 16 SEER, 8.90 HSPF
  • Easy DIY installation: pre-charged R-410A 25ft quick connect line doesn't require special tools, equipment, or training
  • New SmartHVAC app: wifi control - compatible with Amazon Alexa and Google assistant - you can control your DIY anywhere with your Apple or android smart device and an Internet connection
  • Designed to heat and cool a single 1500 Sq Ft room
  • Variable-speed DC inverter compressor technology cuts operating costs
  • Low ambient cooling: cooling down to 5°F - this feature makes the MRCOOL DIY the ideal system for computer server rooms, greenhouses, and any other application that requires cooling all year
  • Gold fin condenser: corrosion resistant - live on the coast? don’t worry, our condenser is built to resist long term corrosion
  • 7-year compressor warranty and 5-year parts warranty
  • Follow me feature: by pressing the 'follow me' button and keeping the remote close to you, you tell the air conditioner to set the temperature from wherever the remote happens to be, this counteracts the tendency for the air conditioner to stop cooling or heating because the air around the unit has reached its set temperature
  • Dehumidifying operation:In DRY mode, the system will reduce the humidity of the air in the room for increased comfort.The air conditioner will automatically cycle between cooling and fan only modes to dehumidify the air.The temperature can be set within a range of 62F - 86F in 1 F increments.
  • LOUVER POSITION MEMORY: Remembers So You Don’t Have To - Horizontal louver will automatically move to the same position as you set last time the unit was turned on.
  • Auto mode feature: In the Auto mode,the mini split can logically choose the mode of Cooling,and Heating by sensing the difference between the actual ambient room temperature and the setting temperature on the remote control.
  • SLEEP mode on remote:Sleep mode will automatically adjust the temperature to maximize comfort during night time sleep. When in COOL mode, the unit will increase the temperature by 2°F after 1 hour, and will increase an additional 2°F after another hour. When in HEAT mode, the unit will decrease the temperature by 2°F after 1 hour, and will decrease an additional 2°F after another hour.After 7 hours operating in SLEEP mode, the system will switch off automatically.
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Product Type:


Cooling Capacity (BTU):


Heating Capacity (BTU):








Energy Star Rated:






Gas Connection:


Liquid Line:






Google Assistant Enabled

Amazon Alexa Enabled




Refrigerant Type:



5 Year Parts/7 Year Compressor

Used With:



Coverage (Sq Ft.):


Install Kit:

25 ft.


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