Posted by Harold Kestenholz - Hydronic Network on September 07, 2000 at 14:40:24:
In Reply to: Steam Boiler Insulation posted by CK on September 07, 2000 at 12:01:18:
Since 1974 certain municipalities have required a test to make sure that no part of the boiler jacket gets hooter than 140F. This is done by insulation. There should be no downside to this. But give Crown a call, they are still there and usually helpful. You can pick up insulation at suppliers.