Energy efficient and environment friendly institutional cookstoves are intended to reduce the amount of firewood and save time for cooking. The most important beneficiaries of ICS are the cooking staff of the institutions. The “rocket stove” design concentrates heat and mixes combustion gasses to create operating temperatures in excess of 1100 degrees Celsius or 2102 degrees Fahrenheit, which allows the stoves to literally “burn up the smoke.” This produces a fire that is cleaner and more efficient than is possible otherwise. The sunk-in pot with heat-retaining skirt design allows food to cook more quickly, reducing cooking time by 20-50%. Each stove used can offset the carbon footprint of 2.7 households each year and can save up to 88 tons of firewood annually. The 60 Liter institutional stove uses 2 kilograms (4.4 pounds) of fuel every two hours at peak temperature and boils 30 liters of water in 30 minutes; the 100 Liter stove boils 50 liters of water in 30 minutes.