The Waterwise 1600 non-electric and portable distiller/purifier is simple and fast, delivering up to 16 gallons (60.5 liters) of pure water a day. This unit is designed to consistently provide pure steam-distilled water on a conventional heat source. It also uses alternate heat sources, such as a wood stove or gas/charcoal grill. A free report and catalog are available. waterwise.com/wcp, (800) 874-9028 X674