Comment by lizknope

Ask This Old House had an episode literally yesterday where they installed a \ solar-assisted split heat pump water heater. There is a component that goes on the outside of the house but not on the roof which simplifies installation.

https://www.youtube.com/watch?v=uqyAWkXXt3A

https://www.neshw.com/residential/solar-heat-pump-water-heat...