Heat PumpsThe Carrier Infinity® Variable Speed Heat Pump with Greenspeed Intelligence and Puron® Refrigerant, Model 25VNA, is available in 2-5 ton nominal-sized units.
Some of the standard Features include: 
- 18 - 20 SEER/12 - 13 HSPF (based on tested combinations)
- Sound level as low as 58 dBA in low speed (Silencer System II)
- Variable speed compressor with capacity range from 40-100%
> View the Complete Standard Features for the 25VNA Infinity® 20 Variable Speed Heat Pump
The Carrier Infinity® Variable Speed Heat Pump with Greenspeed Intelligence and Puron® Refrigerant, Model 25VNA, is available in 2-5 ton nominal-sized units.
Some of the standard Features include: 
- 18 - 20 SEER/12 - 13 HSPF (based on tested combinations)
- Sound level as low as 58 dBA in low speed (Silencer System II)
- Variable speed compressor with capacity range from 40-100%
> View the Complete Standard Features for the 25VNA Infinity® 20 Variable Speed Heat Pump