when you shift click in a furnace with flare you get the equivalante of 5 coal and amplify multiplies it by 2 or something like that
#flare ignites furnaces
tough cape
whole nimbus
The smelt glyph is INFINITELY better for replacing furnace work.
proud quiver
Alternatively, make fire essence to use as fuel
Parallelize imbuement chambers so you can stock some passively just by supplying amethyst from a golem
lapis summit
Alternatively, make fire essence to use as fuel
you can already do that
coral ingot
That's what he was saying, make fire essence and use it as fuel