I am looking for ideas on how to set up my foundation on a detached garage for a future indoor boiler install. We are getting ready to break ground and wondered what I need to do to make running the lines from the house to the detached garage easier when I install a boiler, ie some sort of conduit that can be placed before the footers or floor is poured. I know it will be hard work on the existing garage but wanted to save myself some headaches on the new build.