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View Full Version : How many lbs. of pressure does a PK 400 boiler need?

Mike1084
Jan 18, 2015, 07:00 PM
Think my boiler is out of water.
Grady White
Jan 19, 2015, 06:00 PM
Mike, we need a bit more information. Is the boiler hot water or steam? PK400 doesn't mean much. Is that the model number? What is the make of the boiler?