TOWER - They say Iron Range Finns are usually a reserved bunch, but Daryl Lamppa talks about his Kuuma wood burning furnaces with the zeal of a traveling street preacher selling the Good Book. Lamppa ...

On a busy manufacturing floor inside a cramped 85-year-old converted dairy creamery in the city of Tower in northeastern Minnesota, a handful of workers are welding together a wood-burning furnace ...

TOWER, Minn. — They make some of the best sauna stoves and wood furnaces in the United States in Tower, Minn., and the mastermind behind the Kuuma brand last week stood outside on a brightening day.

Tower company claims to have best wood furnace around Restricted in some big cities as smoke-belching smog machines and targeted by the federal Environmental Protection Agency for tough new emissions ...

Lamppa Manufacturing, a producer of wood burning sauna stoves and furnaces, is remaining in its long-held hometown of Tower but moving its operations into a bigger, newer building through a lease ...

At the same time, Lamppa's wood-burning furnaces are enjoying fresh interest after a key Environmental Protection Agency (EPA) test last year showed Lamppa's "Kuuma Vapor-Fire 100" furnace burned wood ...

TOWER — Four generations of family ownership have Lamppa Manufacturing’s legacy burning strong in a small northern Minnesota town. What began as a side hustle for CEO Garrett Lamppa’s ...