I'm making a Minecraft mod, and I need a bit of help. Quite simply, it simulates heat transfer. Unfortunately, I don't know enough about the subject to construct a good model. Here's what I have so far: Looking back, I can see that simulating heat in terms of watts is probably a really silly way to do it. Wikipedia is being obtuse, Wolfram Alpha thinks I'm a lunatic, and my teachers don't know either. I need some guidance on how best to simulate what I want to simulate. The parameters of the simulation are: 1. The simulation will only be run on the air and players, and only encompasses temperature, not humidity. All objects that are not air or a player are assumed to have exactly zero thermal conductivity. 2. Air is divided into blocks one cubic meter in volume. 3. Certain objects dump heat into the air. 4. Certain objects remove heat from the air. 5. A player (human being) simulates heat transfer in the same way as the air. 6. Players can put on insulative/heat-removing clothing to change the rate at which heat transfers to/from them. 7. A player contains a "heat pump" that tries to force his internal temperature to 37 degrees Celsius by generating heat or forcing it into the environment. 8. A player whose temperature goes below 35 °C or above 39 °C will enter a state of hypo/hyperthermia and become ill. Severity of effects will increase as the temperature moves further from the ideal. Anyone have any ideas? I'm also not great with academic math, so I'm not going to be able to understand anything past the algebra II level without a little bit of help. Thanks.