Experience reprint from another forum.
On occasion, a few years back, I would walk away from a leccy for a few minutes while it heated up.
10 years ago I walked away from a Jensen #55 right after plugging it in with a freshly filled cold boiler.
NEVER AGAIN !!!
Fast forward about 30 minutes.
I had not returned as another project grabbed my attention.
The smell of smoke wafting in from the other room got my attention.
The boiler (nickel plated) had run completely dry and turned a nice blue while the copper finish on the firebox turned dark and a little blistered. The insulation was the new kind and turned to rubbish (dust). Where's the asbestos when you need it??? I filled it back up and ran it and it seemed fine. After it cooled, I removed the boiler to polish out the lovely blue and gold coloring to restore the original nickel plate finish.I didn't like the looks of the heater so I replaced it, then sent the engine to JohnReid who sent me an STC-04 in trade which will be on it's way to another forum member in the next few days.Thankfully Jensen uses a high quality high temp silver solder sothe excess heat on a dry and very hot boiler had zero effect on it.
Gil
After the burn......
[ Guests cannot view attachments ]
[ Guests cannot view attachments ]
[ Guests cannot view attachments ] [ Guests cannot view attachments ]