Answer by Leef33 for Is 200 amp service enough for a tankless water heater with a 100 amp sub panel?

Heat pump hybrid water heater. 30% Federal tax credit up to $600. California utility companies also provide incentives.Your situation is ideal because you have high water inlet temperature, and you can capture the exhaust which is cool air. After you read the reviews about Floridians cooling and dehumidifying their garages in the summer, you can begin to see that this technology makes sense.