> You might do better with direct peltier effect conversion. > A small plate, about 1/2 sq foot, will give you 12V at about 300mA > with > not much heat input. >> With a wood stove the problem is that the Peltier can easily be >> fried. >> There is a unit made for this. > Can't you use water, unpressurized, as a heat exchange fluid? > That should keep the hot side from being too hot. See the Nepal project for their heat sinking and Peltier location. The really enthused could restrict the hot flow depending on conditions. Cold side cooling is a major challenge. RM -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist