Results for Fuel Efficiency & Carbon Monoxide Emissions

The rocket stoves out performed the open fire and the traditional stove used in Tamil Nadu, India.

The stoves were tested using the Controlled Cooking Test to measure fuel use, carbon monoxide and particulate matter while local people prepared common foods. India Fuel Use: The in-field use of rocket stoves (without pot skirts) resulted in approximately 18% to 35% fuel savings compared to the traditional stoves and reduced fuel use from 39% to 47% compared to the three-stove fire.Emissions savings for the non-chimney stoves were about 45% when compared with the traditional stoves and about 50-55% in comparison to the three stone fire. This data also showed that the same meal cooked on a kerosene stove would cost 3.5 Rupees for the fuel at the subsidized price of 9 Rupees per Liter. The Rocket stoves used an average of about 1.5 kilos of firewood to cook the standard meal, while the traditional stoves used an average of 2.2 kilos.

UCB Revised Water Boiling Test

The rocket stoves were also tested using the UCB revised Water Boiling Test in the Aprovecho laboratory. Relative reductions compared to the three-stone fire in the laboratory studies were analyzed. Emissions reductions from the laboratory and field-testing agreed within 18% or less, while fuel savings agreed within 12%. Time savings agreed within about 30% or better.