Borough Furnace is a metal casting workshop in Syracuse, New York that was started through Kickstarter. They create small batches of hand made products using a traditional process that has been updated to be more environmentally friendly.

Their business centers around the Skilletron, a furnace that burns Waste Vegetable Oil to melt scrap iron at 3000ºF. Using old fryer grease as fuel helps to greatly eliminate the energy consumption typically associated with metal casting. In order to keep with their mission of consuming as little as possible, they only use recycled metal.