radiated heating system problem
I have a friend with an "In home" daycare. This is an old home built in 1901. It has a radiated heating system. One of the radiators will not heat. In fact, she claims she has been in the house for over 10 years and it has never worked. I have tried bleeding it. Not much air and the water will come out.
I have no idea where to start. What things should I check? Can a radiator be rebuilt? I was raised in a garage, so, I have some skills. But, no knowledge about these systems. Also, I'm doing this job as charity as it is a friend of my sister. Attached is a pic of the radiator.
I would deeply appreciate any direction.