In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Still getting to know the steam heat in my new (to me) old house.
Several of the radiators appear to at one point had 2 pipes going to them (there are telltale holes in the floor that were plugged/filled at one point)...and some still do.
None of them have valves on them, but they all have air vents.
I am wondering if what appear to be just 90 degree elbows are actually steam traps.
In the attached pictures, the first 3 are of a radiator with a capped return. The last 2 are of a radiator with the return still plumbed.
I keep finding crazy hacks on these...like the radiator in the kitchen that had a hot water bleeder valve installed...with a hole drilled in the side of it to make a really big "vent".