Rocket stove (water heater) for the Grid

Okay Wizards and MacGyver's this should be an easy project to upgrade, what we would do and still may do in the future, to take this project and turning into a water heater  the steam coming off the system will pressure rise the water to pump it two bathrooms kitchen and other Off the Grid Homestead. If you can remember so many other projects can be connected to this one so keep it in mind put it in your book of Technology, and always think outside the box