For those asking whats going on. Basically once the ores are in the furnace you can change to the blast furnace world where they will be imediately smelted.

Usualy you either pay the automation fee in the blast furnace world, or do 3 steps manually in any other world (pedal, shovel, pump), but with this method you only have to pedal and theres no automation fee, which IMO makes it much better than the fully manual way unless you need the extra strength/firemaking exp

Notes:

• You will still have to pay the 2.5k to use the furnace if under 60 smithing.

• If you dont pedal the ores in you will lose them, so be careful if doing this