Torches function differently in TFC compared to vanilla Minecraft. They burn out after 48 hours, but can be re-lit by right-clicking a burnt out torch while holding a torch in the hand. They can be created by right-clicking with a stick on a placed torch, resulting in a single new torch. A more efficient way to produce torches is to place sticks in the input slot of a lit firepit or a forge, which will yield 2 torches per stick. Lit torches can also be extinguished by right-clicking a lit torch without holding a stick or a torch. 

2012-05-27 19.37.12

Torches in the Firepit