The Mirte was designed for ordinary household use, which averages two baking sessions per week, three hours at a time, to bake 30 injeras. Commercial bakers will bake anywhere from 150 to 600 injeras per day, start work at 3 in the morning and work until 9 in the eve. The stove is subjected to enormous stress. The third photo which I did not manage to send last time is a Mirte stove mounted in a house after one year's use . The Mirte reduces wood consumption from 10kg avg per household session to 5kg.
Savings are even greater with commercial bakers.
All the best again. I look forward to seeing these on the Web.