If you're using the mod for the Groundwater alone, is there any way to get it without also getting Lithia Water?

Apparently, the Thermal Water being mined from fissures comes out at a scalding 25°C. An oversight? Realistically, it should be plenty hot enough to run through a heat exchanger.

As a sidenote, would it be possible to add molten salt as a more efficient working fluid for high-temperature generators?