Home » Blowing Off Steam Blowing Off Steam April 22, 2009 Reprints No Comments Refrigerant venting was outlawed in 1992. Did you enjoy this article? Click here to subscribe to The NEWS Magazine Related Articles Trapped and losing steam Getting the Most Out of Modern Steam Boilers Troubleshooting Old Steam-Heating Systems The Search for a Perfect Steam Trap You must login or register in order to post a comment. Report Abusive Comment Thank you for helping us to improve our forums. Is this comment offensive? Please tell us why.