A chemical reaction heating system includes a valved mask to capture and direct carbon dioxide from a user's exhaled breath into a tube or air intake chamber, a connecting mechanism to attach and control flow of carbon dioxide stored within prefilled carbon dioxide gas cartridges or containers, a heating system device body, an intake chamber or tube to facilitate the introduction of carbon dioxide enriched air into the system, a canister body containing Group IA and IIA metal hydroxides, a heat-radiating element to direct the heat generated within the heating system device body, and an exhaust element to release the heat generated. The system performs a chemical reaction operation between carbon dioxide and Group IA and IIA metal hydroxides to create an exothermic heat reaction that achieves the ability to heat spaces and objects.