Скачать или смотреть She Welded A "Metal Box" On Top Of Her Chimney Pipe — Winter Proved It Was a Genius Trick

In 1887 Montana Territory, widow Karin Lindgren faced impossible odds: two children, eleven dollars, and nine weeks to prepare for a winter that would drop to 47 below zero. Her neighbors said she'd freeze by February. Instead, she welded a metal box onto her chimney pipe—a heat recovery device inspired by her Swedish heritage that forced smoke to zigzag through baffles before escaping, capturing 15-20% more warmth from every fire.
That winter became the Great Die-Up, killing up to 90% of Montana's cattle and countless homesteaders. While others burned their furniture to survive, Karin's innovation stretched her firewood supply just far enough to keep her children alive through eight days of relentless blizzard.
This is the forgotten story of frontier ingenuity, a tinsmith's daughter who changed the mathematics of survival and freely shared her design—saving lives that history never counted.