be done. Can I do it myself? No, there are far too many codes and regulations. Fire Sprinkler systems are very critical systems and should only be designed & installed by someone... own use that explains the workings of home fire sprinklers. How does a sprinkler system work? Home fire sprinklers are technologically very advanced, but the basic way they work... is very simple. Fire sprinklers have no moving parts and act simply as a water plug that releases at a particular temperature. See the Flash movie to the right for a visual example...