Oxygen-activated heat releasing enclosure

A fluid heating system, comprising:

• a heat releasing enclosure, comprising:
• an insulated shell comprising at least a first cutout portion, a second cutout portion, and a first and second opening that lead to a cavity of the heat releasing enclosure;
• a transparent window disposed within the first cutout portion;
• and
• a heat releasing member disposed within the second cutout portion, wherein the heat releasing member comprises a powder chamber containing an oxygen-activated heat releasing powder, the powder chamber formed by (i) an oxygen permeable membrane that allows oxygen to pass through the oxygen permeable membrane into the powder chamber and (ii) a thermally conductive membrane;
• and
• a first fluid receiving conduit that passes through the first opening;
• a fluid dispensing conduit that passes through the second opening;
• and
• a fluid container disposed within the cavity of the heat releasing enclosure, the fluid container comprising a first inlet that is fluidly connected to the first fluid receiving conduit and an outlet that is fluidly connected to the fluid dispensing conduit.