First things first. Before the 1920s, most steam contractors used cast-iron, column-type radiators. Those are the free-standing ones with the real wide sections.
Steam Heating → Heating System Conversion Help Topics
This section is your comprehensive guide on steam heating systems with articles about proper steam piping, boilers, pressure, venting, radiators, water quality, and more. We'll also walk you through troubleshooting steam system problems like noisy pipes.