Abstract: A desalination device includes a saltwater input line and a desalinator having a water input connected to the input line, a fresh water output and a brine output. A fuel cell generates electricity and is connected to an energy source for the desalinator. A heat exchanger transfers waste heat from the fuel cell to desalinator.

Abstract: A method for distilling water includes the steps of entering brine to be distilled into a sub-atmospheric boiler having a brine section with a brine output and a water vapor output; concentrating brine in the brine section to a concentration of at least 250 grams of salt or contaminants per liter; stirring the brine in the brine section; and exiting the brine through the brine output. A distiller with a subatmospheric boiler having a stirring device is also provided.

Abstract: A water distiller has a sub-atmospheric boiler having a non-recirculating brine section, an input, a brine output and a vapor output. The input is for water to be distilled, the brine output for brine, and the vapor output for water vapor. A compressor is connected to the vapor output for heating the water vapor, and an heated vapor line is connected to an output of the compressor, the heated vapor line heating the brine section.

Abstract: A water distiller comprises a sub-atmospheric boiler having a non-recirculating brine section, an input, a brine output and a vapor output, the input for water to be distilled, the brine output for brine, and the vapor output for water vapor, a compressor connected to the vapor output for heating the water vapor, and an heated vapor line connected to an output of the compressor, the heated vapor line heating the brine section. Also provided is a method for distilling water comprising the steps of entering water to be distilled into a sub-atmospheric boiler, a part of the water to be distilled boiling immediately and a part entering a brine section of the boiler; raising a temperature of water vapor exiting the boiler so as to form a heated water vapor; passing the heated water vapor by the brine section so as to heat the brine section; and removing brine from the brine section when the brine reaches a predetermined salinity.