I suspect some of this kind of post is found very boring for some people. My wife finds it amusing that "nerds" can get so interested in this kind of stuff. Anyway... below is an image of a heater warning label I have not seen here in South Dakota on electric heaters. It is from my friend John in California and for all I know may be a sensible California requirement. Click on the image for a larger version.
John included more information which one might expect from an electrical engineer. I will put that information into SD Science Junction. It is the kind of information that conveys a message of the actual importance of science and engineering knowledge in general daily life..or possibly death if knowledge is absent or unavailable.
I also received more information from the SD Fire Marshall's office which parallels the above warning, but is not quite so easy to insert here. You can download the PDF below.
Thanks to Doug Hinkle of the SD Office and thanks to John for the information of his own experience with overheated connectors and his analysis of it.
I have looked at all stores selling cords and heaters here in Winner, SD again last week and checked my own connectors and cords and have found a huge gap between the data in the marketplace and the info from fire authorities. More caution than suggested by product labeling here in South Dakota is warranted by experience here and elsewhere.
*** Stay tuned and be careful both out there and in there--- Doug Wiken