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Posted by sid on January 13, 2007 at 17:18:02:
In Reply to: Silencer posted by Tom on January 08, 2007 at 04:36:23:
A big waste of bth and you could pull the boiler into a vacuam .You heat a boiler slowly so it expands slowly you cool slow so it contracts slowly also. If you need to cut steam flow off thats what them big valves are for