MRCOOL DIY 18k BTU 20 SEER Ductless Heat Pump Split System 3rd Generation - Energy Star 230v

I selected this unit because the warranty is valid for DIY - unlike most competition. Installation was straight forward. If you can tighten a bolt, then you can connect the condenser to the air handler - that simple. Packaging was VERY well done - no chance of shipping damage. Installed just in time to weather a week long heat wave. Unit worked flawlessly. Very happy.

I bought several months ago and I still have problems with the mount bending and moving. I will have to take the whole unit down and glue and screw the mount to a more substantial backing (plywood likely) - cut out the drywall and remount the unit. The WiFi control does not work - and I have tried different routers. It never connects. I will likely order another brand next time I need a split unit. Also - they could not deliver to my house. I had to reschedule delivery a few times and then meet them at a different location and load the unit in my car to take to the house.

This unit is great in the summer and cools off very well, however in the winter time i have this in a 400 sq ft shop with only 9 ft ceilings well insulated and it takes several hours to take the chill out and my electric bill is is insane. i bought this unit only to take the chill out and did not think it would take the place of a larger gas unit but very disappointed in the heating aspect.

I have a 1,000 SqFt garage with high ceilings and thought this would do a better job heating and cooling. It does work but doesn't do enough. I am still working on insulating the whole garage in hopes that once its finished this unit does a better job.

After reading other online reviews, and researching the installation process, I purchased a MRCOOL 18 K Mini-split system for my remodeled attic. The installation instructions were through and it took us about 4 hours to complete. The unit now quietly cools and heats the attic comfortably! Saved me lots of money installing it ourselves. No real need for a costly HVAC 'expert'.