It seems to me that the initial recipes for the advanced foundry (copper and iron smeltig) are by far worse than the basic smelting recipes.
We have a ore to plate ratio of 32:4 = 8:1 (without hot air) and 32:6 = 5.33 :1 (with hot air) whereas basic smelting is 1:1. The foundry also takes longer and uses by far more energy. So why would anyone use the advanced foundry with those recipes over a basic furnace in the beginning?
The basic 1:1 smelting recipes are also enabled in the foundry, outputting more for less energy in shorter time compared to the recipes above. The 1:1 in a foundry uses slightly more energy compared to a vanilla stone furnace but less than a steel furnace, and comes with a hefty reduction in pollution. The ability to make 1:1 repices in the foundry seems like an odd design choice, making vanilla furnaces obsolete when space is plentifull.
So in my oppinion the recipes are either useless or wrong - maybe just an oversight missing a zero. Just for less pollution I would never trade in so much ore and space. Sensible ratios are 32:40 = 1:1.25 and 32:60 = 1: 1.875, making it worth using the foundry - but in the same time the recipes are worse than advanced smelting recipes using fuel rods promotiong an upgrade at a later time. For the foundy the basic 1:1 recipes should also be disabled.
By the way: Those recipes appear to be enabled in vanilla furnaces where they - in fact - cannot be produced due to the lack of recipe selection. This is purely cosmetic but has the potential to confuse players.
