Designs of self, Supported steel chimney/stack required for minimizing atmospheric pollution due to flue thermal air gas from, Producer ic the boiler, Hot water generator, Thermal fluid heater engine, Furnace, Etc. Designs are done in compliance with the specifications of specific industry and country. Design considerations of the stack a mechanical development and fabrication comply with standard procedures outlined in is 6533, 1971 b height selection is as per norms of pollution control board taking into consideration the site of site, Surrounding topography and quantum of, Building structures emission sox, Nox and particulate content c various guidelines outlined in the code for design of stack are followed for the layout of holding foundation etc, Down bolts, Base plate. D the layout features checked for stresses and stability wind and, Against earthquake found that the design is safe against these factors. E the dynamic analysis is performed to confirm the protection of the it involves, Design. Finally a cad drawing of the designed stack.