Hey there. The tile floor in our kitchen is pretty cold in winter. We have an unfinished room below the kitchen in the basement room (the rest of the basement is finished). The ceiling in that basement room has some very old fiberglass insulation in about 1/4 of the joists. It's very thin insulation and the kraft facing downwards is brittle And flaking. We may eventually finish that room someday (as an office), but for now we'd like to try and get our bare feet a bit warmer on the floor above. I prob should have installed heat in the floor before I put it down myself, but alas, I didn't. The house is heated in a single zone (ranch style home) with hot water radiators. There is a radiator pipe for the kitchen running through the room below. I read that I can run Hot lines along the joists to heat the kitchen floor above. Obviously putting in some new insulation to hold that heat in and send it upwards. A few questions: -Is this effective. and if so... -Would I have to run lines it through every joist? or would every other do? -Could I use PEX or is Copper more conductive? -Would it be as simple as tapping into the hot water line and creating a loop of some sort? Just trying to weigh my options. Any help is appreciated. Thanks Fish

Should the shut-off disc inside the valve be attached to the bottom of the stem or does it move out of the way under steam pressure. When I open the valve, the disc that closes off the steam pipe opening stays in place while just the stem turns up. Thanks..