1 cold steam rad 2 pipe system

John_102

Where? Steam symptoms aren't necessarily where steam solutions should be.

TERRY_18

1 COLD STEAM RAD 2 PIPE SYSTEM / ALREADY CHANGED TRAP

Brad White_126

OPEN VALVE?

Steamhead (in transit)

Changing the trap

on the cold rad won't help if the dry return is being pressurized by another bad trap or a bad vent. I think you might have some type of Vapor system there. Have you seen any manufacturer's info on the original traps, valves or any hardware around the boiler?

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