Posted by Craig T on January 27, 2000 at 12:41:45:
I recently purchased a house with an oil fired boiler which feeds cast iron radiators throughout the house. The radiators have a pipe with a valve on them at one end and an outlet pipe at the other end. Both pipes are at the bottom of the radiators. At the top of each radiator is a small valve with a square knob. I assume that is for bleeding air out of the radiators. The radiators all seem to work fine, no banging or other noises, but I don't know if they are working as efficiently as they should be.
Should I be bleeding air periodically? How do I know when to do it? How do I figure out how much to bleed? Where do I find a tool to insert around that little square valve?
Thanks in advance for your input!!
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