My house is a 1927 Bungalow with radiators and hot water heating. The system seems to be working fine, however I am having a problem getting the radiator in the attic (which is furthest from the furnace) to heat up. I can run the system for awhile, bleed all the radiators and eventually get heat from the attic radiator. By which time the downstairs is 90 degrees. However, under normal conditions, the attic radiator just doesn't heat up.
Does anyone have any suggestions?