The Jompy Water Boiler is a lightweight and inexpensive fire top device which sits between cooking pots on an open flame. It enables households to cook a meal while at the same time heating water to temperatures high enough to kill 98% of waterborne bacteria, thereby making it safe to drink or use the water for cooking or bathing. Gravity pushes the water through the Jompy Water Boiler, which then delivers near boiling hot water within seconds and at a rate of one litre per minute. It works equally efficient on stoves or simple three stone fires, making it suitable for the use in both rural areas, as well as, urban dwellings. Through a more efficient use of the cooking fire, the Jompy Water Boiler also dramatically reduces fuel costs for poor families.
It is estimated that over a billion people world-wide are without access to clean drinking water. As a result, water-borne diseases, such as diarrhoea, kill 1.8 million people annually. Access to clean water alone could reduce deaths caused by diarrhoea by up to 25%. In 2011, Amref Health Africa concluded that water-borne diseases like diarrhoea, cholera or typhoid fever, are mainly caused by the lack of access to safe drinking water, to water used to wash hands, food or utensils before eating and also, by a lack of adequate sanitary facilities.
The Jompy Water Boiler reduces waterborne diseases by providing social, economic and environmental benefits. It pasteurizes water stemming from the commonly used, poor water sources, making it safe to drink and thereby reducing death rates and illnesses caused by diarrheal diseases. Clean water instantaneously improves hygiene and sanitation, and leads to better health conditions. Economically, users also benefit from the more efficient fuel use. Not only is the same fuel which is used for cooking also the source for water pasteurization, this heating process is also quicker than with conventional methods, it consumes less fuel and reduces CO² emissions.
Tested in a field project, families reported that they saved 3kg of firewood per day and more than 3 hours of time per day, due to shorter cooking periods. Financial savings also amounted to 30-60% of their annual household income, which for example could enable these families to send their children to school.