Continuing to experiment with the Peltier devices. I tried doubling the size of the heatsink, and using a stronger fan.
I the heat sink continued to get exceptionally hot. Because of this I tried a better heat sink. I tried attaching a heat sing with larger fins and fan attached. It employed heat pipes, designed to transfer heat away from the source with more efficiency.
and with this setup, I was able to observe the attached plate and heat sink did not get so hot, but, the junction between the Peltier device and plate was. I am not sure how much heat these devices are capable of handling. I believe I need to start measuring these temperatures to make much progress from and will buy a thermo-couple reader to get these temperature values