How to Report Bugs or ask for Suggestions!
Loader Furnaces are not cheap as they require a lot of power and will require more electric furnaces as if you built a full smelter setup.
At the start of the game, the mod will try to discover all smelting recipes which only have a single item output and add a belt optimized Loader-furnace version of it.
It might be that some smelting recipes won't show up due to how Factorio handles the mod loading, if a mod is loaded after Loader-Furnaces the recipes will not be discovered.
usafphoenix for the Idea and Solution to use Least common multiple to solve the 2 / output_count < 1 issue.