It would appear that this thread has wandered off the OP's in which he briefly made a general comment about his first trip out and about a problem he had with the water pump and thermostat. Since then a wide variety of topics have been talked about and we are now on infared measurements and heat loss.
I would suggest that when har29 picks up and examines his rig with the infared device, he can start a new thread and report his findings to us.
Thanks to all who took part in this discussion. This thread will now be closed. If you want to comment further on any of the topics discussed in this thread, please start a new one. Thanks.