> Isn't that spectacularly expensive? Not spectacularly expensive when installed as the house is built. It's another run of pvc pipe in the walls before you cl

> Isn't that spectacularly expensive? Not spectacularly expensive when installed as the house is built. It's another run of pvc pipe in the walls before you close them up. Approx a day of labor and some pipe are the added expense - not much in terms of house building cost at all. Hardwood floors are much more expensive - and still need to be swept or vacuumed.