Affinity™ Packaged Heat Pump Model: BHX Key Features: 13 - 16 SEER Two-stage cooling R-410A refrigerant Up to 8.0 HSPF Constant air flow fan Warranty: Compressor - 10 Years Limited* Other Parts - 10 Years Limited* * In order to receive the 10-year parts and compressor warranty, all qualifying products must be installed on or after May 1st, 2009 and registered online within 90 days of the installation date. If this requirement is not met, the warranties will default to the standard warranties as documented on the product warranty certificates. Additionally, R-22 and 3-phase models do not qualify for the 10-year warranty. Affinity™ Packaged Heat Pump Model: BHZ Key Features: 13 - 16 SEER Single or two-stage cooling on 14+ SEER models R-22 refrigerant (BHP model) R-410A refrigerant (BHZ, BHZ model) Up to 8.0 HSPF Adjustable fan speed and air flow Warranty: Compressor - 10 Years Limited* Other Parts - 10 Years Limited* * In order to receive the 10-year parts and compressor warranty, all qualifying products must be installed on or after May 1st, 2009 and registered online within 90 days of the installation date. If this requirement is not met, the warranties will default to the standard warranties as documented on the product warranty certificates. Additionally, R-22 and 3-phase models do not qualify for the 10-year warranty. Affinity™ Packaged Heat Pump Model: BHP Key Features: Up to 13 SEER Single stage cooling R-410A refrigerant Up to 7.7 HSPF Adjustable fan speed and air flow Warranty: Compressor - 1Ph-10Yr / 3Ph-5Yr Other parts - 1Ph-5Yrs / 3Ph-1 Yr