Charcoal Combustion Heater (IMAGE) American Chemical Society Caption This is a photo of the charcoal combustion heater that Japanese scientists say will offer cleaner, more efficient home heating. Credit 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.