"Ignite Furnace" is an objective in the quest Get Frosty in How Marcus Saved Mercenary Day DLC
Walkthrough[edit]
look to the right of the Furnace. You will see a switch. Hit it to ignite the Furnace and start that coal burning. Marcus will tell you it is time to leave with the goods. The problem is the townsfolk defrost faster than that. Marcus and the Vault Hunter are contacted by Timothy.
