From Jeanette in Zambia:
I just wanted to let you know what great success we've had. We've built [a rocket stove] at both of our children's centers (in Zambia) and I've also just completed a smaller version for a 30L pot (gtz calls it the "changu" stove) at one of our centers. The matron at our original center (where they have cooked over an open fire for the last 11 years) estimates that she has probably been able to decrease the amount of firewood used in a term by 75%! Amazing!!!