Those Canadian lumberjacks must know a trick or two about staying warm. While gadgeteers console themselves in heated jackets and Slankets, lumberjacks were out there slapping bits of steel together to create the Bullerjan furnace. Toasty. [Bullerjan via Uncrate]
https://gizmodo.com/power-yourself-up-for-8-hours-with-milwaukees-m12-heate-5713261
