To install a shell and tube heat exchanger, place it on a level, secure foundation and align it properly with piping connections. Use flexible connectors to prevent stress on the nozzles and ensure proper venting and draining. Perform leak and pressure tests before operation, and insulate if necessary for safety and efficiency. Start up gradually while monitoring for leaks, vibrations... https://www.unitedheatexchangers.com/blog/What-is-a-shell-and-tube-heat-exchanger/