I know there are a series of items that can be melted down to make Dwarven Metal Ingots, but I'm not sure about all of them (levers, cogs, etc.) What is the exhaustive set of items that can be smelted to produce these ingots?
What are the best item(s) I should be preferring over others given its weight-to-ingot ratio?
Best Answer
From UESP, here are all the items that can be smelted down and their ingot/weight
Of the three items that melt down to a ratio of 1.5 ingots/weight, they all weight 2 and produce 3 ingots from the smelting and thus are the most valuable to collect.
Of note from the uesp entry: