We have baseboard heating in our home the heaters are very old. We removed one, because we removed the wall it was next to. But now we have not heat at all, my husband just connected cooper pipes in the area were the heater was. We thought maybe we need to bleed the line since air possible got into the line. But the heaters are so old we can't seem to find a bleed valve two of them do have some sort of bolt and screw thing on them, I took the bolt completly off and the screw just turn forever in any direction. We are not sure what next to do. Any advice anyone???