Fujitsu 36,000 BTU 18.0 SEER Multi-Position Air Handler Single Zone System - R410AFujitsu 36,000 BTU 18. 0 SEER Multi Position Air Handler Single Zone System is the perfect product to replace your inefficient unitary ducted system. This particular system is 4x quieter and much more efficient than your traditional heat pump. This system comes with an out of the box 7 year compressor 5 years part warranty, 10 year warranty if its installed by a licensed HVAC tech and registered within 60 days, or a 12 year warranty if it's installed