The purpose of this paper is to examine the actual use of fumarole gas fixtures in Takenoyu and Tsuetate areas, Kumamoto Prefecture; Kannawa area, Oita Prefecture; and Unagi area, Kagoshima Prefecture. Some features were discovered by conducting field investigations, interviews and questionnaires for residents in each area. The variety of geothermal energy potential and appearance causes the difference of fumarole gas use and expansion process of these areas. Investigating some features of the actual use of fumarole gas fixtures is useful for creating the low environmental load and high-quality living environments.
