Well work has been slow on this thing lately. I'm hoping to work on it some more over this holiday weekend. I have a different idea for the water heat exchanger. The original idea was just to put the propane tank that the burner shoots into into a tank of water. I have not been very pleased with the rate of heating the water. So the new plan is to coil some .75" copper tube around the propane tank itself.
Thoughts?
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