Steel Furnaces Don't Deserve the Hate (Blueprint in comments) : r/factorio
Factorio Blueprints for beginners | Rock Paper Shotgun
Steel furnace - Factorio Wiki
Design / Blueprint] Stone/Steel furnace block design suitable for early and mid-game. This design is intended to achieve maximum compression in 0.16, after the loss of the underground belt compression trick. :
Iron ore -> steel smelting blueprint - Album on Imgur
end-game iron/copper and steel smelting (non-smart) - Factorio Forums
Tactic Talisman: Factorio: Smelting Blueprint
Factorio Prints: Steel Production
factorio furnace layout
end-game iron/copper and steel smelting (non-smart) - Factorio Forums
factorio furnace layout
Factorio": How to Build a Furnace/Smelting Setup - LevelSkip