Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Peltier Junctions or Modules have been around for a while now, and have been extensively used in industry, but I don't recall seeing this direct of a consumer application available before. I think it's a great idea, and hope to see more extensive use and availability. This same concept was covered well over much of the last 200 years by the Stirling Cycle stove top fans from years past. I'd guess the efficiency of the two different approaches are both about the same .... which is to say quite low, but when the heat is essentially free (waste) why not use it at any level of efficiency, as no use is Zero efficiency!