Adds duplicate stone, steel and electric furnaces than can consume an entire belt of ore per second. Best used with loaders. Optionally converts furnaces to assembling machines for more compatibility with mods like Krastorio 2.
Since the steel/electric furnaces have a crafting speed of 2, you'd either need a belt going twice as fast as the level of belt expected (Eg: using a red belt above with a yellow belt furnace) Or 2 belts of the expected level.
All fuel consumption, pollution and final products are the expected level. For Vanilla this would be 48 furnaces of consumption/pollution/production. For Krastorio 2 which this mod also supports (currently only Spaced Out, haven't fully tested it on normal) it is 24 furnaces worth as you need twice as much ore per furnace.
The furnaces unlock when you unlock the tier of belt (basic unlocked by default) and can be crafted using the vanilla amount of furnaces (configurable) of the previous tier.