One-pipe steam radiator. Single, large valve at the bottom of the radiator, air vent midway up. In one-pipe steam installations, steam flows from the boiler to the radiators, and water flows back again through the same single pipe. One-pipe radiators are easy to identify because they have just one pipe connected to them, always...Read More
Castrads, established in England in 2006, manufactures custom-built, custom-finished radiators as well as controls and fittings that are suitable for both steam and hydronic heating systems.