I guess what I am wondering is what did I do wrong?,
Either need a heaver gauge of silver, or ss which has a higher melting point.
You're going to want the coils to lay against the FQ. Going to be hard to get the heat you need through the air gap, especially with the top open. Tube looks to short I think also. I don't think the JB weld will hold up unless its down in the juice.
Stick with it man. I'm still tweaking things on my end, but this really works great.