Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Hi Jim,

Any advantage to going horizontal and putting an upwards and downward bend on each one after soldering?

Yes, I think so, easier to construct and an angle down one side and up on the other will improve water flow. I usually have the pipes arrange as a helix fairly close together at the bottom of the boiler flue, the tubes going about halfway across the water space. I usually only complete a little over a circle, which if my mental arithmetic is correct for your boiler is about 5 or 6 tubes.

Take care Tony.