Charcoal combustion Heater (IMAGE) American Chemical Society Caption This is the charcoal combustion heater Japanese scientists say will offer clean, more efficient home heating. Credit Photo courtesy of Amit Suri Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.