Pipe preheating torch - GIF

Pipe preheating torch.

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Previously:

https://www.homemadetools.net/forum/...678#post225809
https://www.homemadetools.net/forum/...025#post176119
https://www.homemadetools.net/forum/...574#post151547
https://www.homemadetools.net/forum/...675#post132965

And the reason they are heating the pipe IS?

GOOD weld joints, require preheat in many situations.