Avenger
Veteran Member
One of my first thoughts when I saw the first video, is your extension cord. How long is it and what gauge wire? I have a feeling you might be getting a fair sized voltage drop because of the light duty cord. It would be interesting to measure the voltage on the wall plug with the heater on. Then move you meter to the end of the cord by the heater and see what you get there.
I will definitely look into that.
The cord is new, 20ft. Don't remember the gauge. I just grabbed one off the shelf.
Thank you!