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The first heating method we tested was using a Peltier Device. This is an electronic device that, when DC power is applied,
gets hot on one side and cold on the other side.

First test setup:

jaycar peltier                                        peltiertest1

Peltier device                                                                        wiring arrangement

  peltier current                                     peltier cup

    current drawn from power supply while heating water                    water being heated, (condensing on copper sheet)

peltier test bed

test bed showing temperature (88.9 C) and current draw (2.88 A)