CleverRaven/Cataclysm-DDA — pull request #3616 by Rivet-the-Zombie (2013-10-13 04:32:09+00:00)
Title: Recipe to make your own chemical heatpacks!

Standard reduction through oxidization type, similar to the ones that MREs use.

Mg + 2H2O-> Mg(OH)2 + H2 + *HEAT*