Lemne uscate cu Hi = 3500 kcal/ kg Carbune cu Hi = 4200 kcal/ kg Brichete rumegus cu Hi = 5100 kcal/ kg Cocs cu Hi = 6100 kcal/ kg 29, 24, 20, 16, 3 4 1 8 36, 30, 25, 21, 6 5 1 o Producätorul