[Greenbuilding] Something new in water-source heat pumps...

[nick pine]

https://en.wikipedia.org/wiki/Seasonal_energy_efficiency_ratio#Maximum_SEER_ratings 
says:

>Today there are mini-split (ductless) air conditioner units available with 
>SEER ratings up to 27.2.[6] Traditional AC systems with ducts have maximum 
>SEER ratings slightly below these levels. Also, practically, central 
>systems will have an achieved energy efficiency ratio 10-20% lower than the 
>nameplate rating due to the duct-related losses.

>Additionally, there are ground-source residential AC units with SEER 
>ratings up to 75.[7]

Footnote [7] leads to an Ingram's water-source heat pump with an inverter...

Nick