Keep trying, and failing, to start engine - what am I doing wrong?

[Vitatroll]

Hellburns: Burn chamber set up correctly? Check. Tiles with chamber fuel cans protected from heat by being in a vacuum? Check. Correct valves open? Check. Now toss equal amounts of clown farts into the loops and watch it burn sol to ash.

I'm not kidding. You can reach petawatt with nothing but a single air pump on each line -- in a normal (if longish) round no less. Hellburn's a bug. A beautiful, face melting, cluwne eating, ascended bug. It doesn't need to make sense, and generally doesn't.

Furnace: I always open the valves and start the furnaces first. I then wrench both cans into place and let em' rip at roughly the same time. This method has never failed me.