A few years ago, we picked up an account at an apartment complex that consists of eight buildings. The mechanical room is in a separate building that houses a low-pressure steam boiler, the DHW system, a condensate station and a boiler feed system. We were called in to try to improve a poorly functioning two-pipe steam system. The buildings were built in 1953.
On our first site visit, we noticed the burner cycled often, yet the steam struggled to reach the areas furthest from the boiler room. Along with many other changes, we were able to reduce the size of the flame and increase the length of the firing cycle. This helped with heating the furthest heat emitters (recessed convectors).
