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What type of radiator is this?
I've had many people come and look at my system and nobody has yet been able to figure out what exactly were running here.
We have a one pipe steam heat system, there is a front panel that comes out with a screw lock that allows us access to the air vents installed behind the radiator. There is also a horizontal rib that runs along the base of it, which seems to carry the steam and condensate? Any ideas?