Alan J Fletcher <[email protected]> wrote: At 12:54 PM 12/8/2011, Robert Leguillon wrote: > > Coming in late on this. > > General comments : your plastic-pipe situation is a poor model of Rossi's > copper heat-exchanger manifold. >
Very poor. I was testing only one aspect of the claim: the effect of trapped air under plastic tape (strapping tape) and foam insulation. People here have claimed that trapped air and metal at a different temperature nearby will significantly affect a temperature measured at the surface of a pipe. I realize I used the wrong kind of pipe. The main thing is, the thermal mass of water going through the pipe is huge compared to everything else. It dominates. In Rossi's system a lot more water is flowing through than I can manage with the bathroom sink. - Jed
