Setting up radiant floors is truly entirely hard. My sister Bobby & I thought the two of us could set it up in a day. The people I was with and I should have entirely researched the heating replacement more. First, you need to rip up all the existing tile & flooring. Then, once the flooring is totally mucked out, you add the radiant floors. The radiant floors are either electric heated mats or piping hooked to a boiler system. The hydronic heating idea would have been way harder to set up. Bobby & I did the easier electric radiant floors. Well, it was still not simple. The electric lines were taxing to set up right on top of each other. It took us many days to do this portion of the project, ripping the flooring took all day. The next day was dedicated to the actual heating replacement. That took numerous days. The people I was with and I could have cut our time in half, although I did not want to mess anything up. A heating plan is a big investment. I did not want to have an area that did not get any heated mats. I also did not want to have gaps in between each piece. Bobby & I did a fantastic task, however it took weeks, not days. Then, setting new flooring over top was horrible. Ripping up a floor is easier than redoing a floor. That took days as well. The whole project was extravagant & almost a month of solid work. If I ever had to do this again, I would just hire a professional Heating & A/C professional to do this heating replacement.