The global demand for freshwater production is increasingly critical for developing countries bordering the world’s oceans. Several technologies exist, with some utilizing heat transfer fluid for assistance in the distillation step which can occur with the aid of a vacuum for increased boil-up rates. Eastman Therminol® heat transfer fluids are available to support these process needs, whether the energy source is from concentrating solar or fuel-fired heaters. Therminol fluid thermal stability ensures long life for the fluid, resistance to fouling, and excellent fluid-side heat transfer coefficients for consistent and reliable service.