Alan, I hate to be the one to pee on your barby, but YOU CANNOT BUILD A BOILER from muffler putty, no matter what that crazed Ozonian farmer says. > Muffler putty? Yeah, it might work, but why didn't you build whatever it is right the first time?????? MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.