Lots of nice machining there Paula ,interesting approach to the burnt out/missing heaters for these units.
Wow - lookie there - who needs Chinese crap when you have an American Machinist! Sooooo jealous! I literally been day dreaming about equipment like that... though even if someone dropped one off on my driveway I wouldn't know how to operate it!
I am not surprised the two 150w guys didn't give you enough. I assume v2 of the heater is coming with 3 cartridge heaters? I am so excited to see that!
Thanks for the acknowledgement, guys! I suppose the question of what is "enough" is an open one. I will wait and see how this one performs under load before deciding. Going to a 3-heater design wouldn't be that difficult -- I already have an extra cartridge -- I would just need to make a 3-segment plug. We'll see how it goes. If she starts up and runs halfway decent, I may call it good enough. It's had a hard life, and maybe deserves an easy retirement!

(I know I do!)