. A Study was conducted during 1997-1998 inPedan, Klaten, Central Java for collectinginformation on health effects of using coal briquet fuel. The odds ratios (OR) for 95% confident intervals(CI) were analysed by comparing the risk of the respiratory disease between people who use coal briquet fuel in their houses and similar households not using such fuels for cooking. Result of analysis show: OR95%CI of mother for: whooping cough 5.07(0.61-42.35),chronical sputum 4.05(0.46-35.43), air way resistance 0.17 ( 0.02-1.37), while asthma, chest pain, and tuberculosis were not detected. The analysis ofOR among children under five years old for: whooping cough 1.27(0.64-2.52),chronical sputum 0.51(0.13.68),asthma 4.05(0.46-35.43), air way resistance 1.35(0.35-5.83), whereas wheezing, chest pain, andtuberculosiswere not detected. Less significant OR was shown for mother (whooping cough andchronicalsputum),and for children under five years old (whooping cough, asthma, and air way resistance). The studysuggeststhat coal briquet fuel should be used with precautions and care. Used carefully, it can be used for long-term heating.