I'm a bit embarrassed to admit I didn't recognize the term "Swamp Yankee." I looked it up here
Swamp Yankee - Wikipedia, the free encyclopedia and then knew why I didn't recognize it- I come from Western Massachusetts and Vermont!
Still on topic- growing up as a kid in the mid-60s, I remember my best friend entertaining himself by using his father's torch to heat up the concrete floor in their garage until it exploded. it's a miracle we never suffered any injuries beyond scrapes and cuts from that. It was the same torch we used to cast lead toy soldiers- his dad was a plumbing contractor.