Introducing the 4th generation MRCOOL DIY 36,000 BTU 4-zone ductless heat pump condenser which is one of the most capable heat pumps on the market. When this 4-zone condenser is matched with select MRCOOL air handlers, it can produce a highly effective 22 SEER efficiency rating. It can also provide heating performance all the way down to -13°F. With its Gold Fin condenser coating, it is sure to withstand the seasons. To drive home the quality of this condenser, MRCOOL is the only manufacturer to offer a limited lifetime compressor warranty. The cornerstone of this heat pump is its ability to be a Do-It-Yourself project for a homeowner. When used with MRCOOL's patented pre-charged quick connect line set, the refrigerant piping can be connected with simple hand tools and does not require the services of a certified technician. It comes pre-charged with the correct amount of R-410A refrigerant so, once installed, it does not require vacuuming. Allow the capability, performance, and simplicity of a DIY installation of the 4th generation MRCOOL DIY 27,000 BTU 3-zone ductless heat pump condenser to be your only choice for your home's heating and cooling.