As soon as you start working on the tiles and maybe even completely on the screed, it becomes a big, dusty affair. Then there’s a small wall added and this and that during the renovation, a bit of different wiring or something similar, and then you might as well completely gut the house and renovate it however you want. But you probably didn’t want that, also for cost reasons, which is why an eventual change of property should be considered. I would leave the heating as it is and discuss with your wife (see ) whether and where I would want a different floor; maybe a good compromise will be found. Depending on the situation, you might be able to put something directly on the tiles or similar, or tile over them, or adjust just one room, which could be problematic because of the doors and other things. Underfloor heating is not a "deliverance" from an evil, but merely an alternative way of heating that must fit the overall situation; almost anything can be done. Depending on the situation, you might also be able to partially remove this wall and leave a baseboard/half wall standing to achieve the desired openness without tearing up the floor.