What about the tubes-into-bronze-block approach instead of trying tiny bends, Keith? I think that was discussed and pictured in Martin Evan's book. Charles -------------- Original message -------------- From: Gmx22@xxxxxxx > I am getting on well with a simplex but can't seem to get the > super heater right. The people I have spoken to have two schools of thought. > 1 > because it has slide valves Don't use a radiant one something to do with wet > steam being better. make it out of copper. I have just come in from the > garage having turned another peace of copper tube into scrap, lots of heating > and i just can't get the tight bend required to make it look neat. 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.