Way back when on another forum there was a discussion of using the stove for a tipi light. I think glass window in the pipe was tried but it got too sooty. I suggested a thermocouple driving an led lantern. Metal thermocouples are not efficient enough. I just ran across these solid state thermoelectric devices. I think they might work. Maybe try it out when I get time.
http://customthermoelectric.com/powergen.html
