Old firehouses in Chicago and surrounding suburbs are doubling as art centers, museums, restaurants, and wedding venues. In Chicago’s Avondale neighborhood, for example, the Puerto Rican Arts Alliance transformed a 1901 fire station, abandoned since 1982, into a community gathering place with a host of green features. During the renovation of the two-story cultural center (completed in 2012), the building was insulated and a highly efficient HVAC system was installed. On the