Efficient wood stoves. 1000 pans. 200. 275. Taken into account. 5; 7 and 13. Efficient electric stoves. 1000 pans. 75. 100. Taken into account. 5; 7 and 13. Efficient refrigerators. 1000 refrigerators. 125. 175. Taken into account. 5; 7 and 13. Efficient charcoal stoves. 1000 pans. 0. 0.