Heater Bloc's Guide to Building A Copper Coil Alcohol Heater

As temperatures fall sharply and the number of unhoused people swells throughout the United States, anarchists are forming a decentralized network that builds and distributes tent-safe, alcohol-based heaters to those without shelter. The units cost about seven dollars each when components are purchased in bulk, and they can be used for both cooking and warming small indoor spaces for hours at a time. If the heater tips over, the flame automatically burns out and, with proper ventilation, the risk of carbon monoxide poisoning is minimal because isopropyl alcohol combusts cleanly. The instructional guide has been translated into several languages, and groups that build and distribute the DIY heaters have popped up in rural areas and major cities across the US, including in Pittsburg, Philadelphia, New York City, San Diego, Atlanta, Tacoma, Kansas City, Dallas, Kalamazoo, Elm Fork, Texas, and Spokane, Washington. Some groups are beginning to explore adapting the design for use in refugee camps, in areas that have experienced severe power outages such as Texas, and for the increasing number of people in the US who cannot afford utilities. (Source: https://www.vice.com/en/article/n7nd5x/anarchists-are-building-diy-heaters-to-keep-unhoused-people-warm)