Don't feel too bad Alan, I guess I always knew deep within my heart that the Law of conservation of energy would eventually rear its ugly head and delve into the realm of esthetics. You did, however, solve a problem for me. I normally heat the house with wood during the long Northern Michigan winters. If your theory holds true and I can do enough fiddling, get enough mutes. and keep the heat in them till winter, I may just be able to heat the house with those little devices. It looks like jigs and reels all summer!