Not yet, but soon. Our heating installer recommended it to us. He said the low temperature of the underfloor heating would not be sufficient to make a bathroom nice and warm, so every extra sqm for the room is a plus. And from my experience with our current bathroom, I can confirm that he is right, that the room is not warm enough with just the underfloor heating – at least not for kids. Without a towel radiator, it wouldn't be so nice and warm in the bathroom during winter. The latter runs on a timer only in the mornings and evenings.