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Home Shop Cold Plunge
  • The Cold Plunge — V10
  • Ten Generations
  • FAQ
  • Setup & First Plunge
  • Care & Maintenance
  • The Water Guide
  • Warranty & Service
Our Process Sauna Owner's Guide Our Story Call of The Nightjar (Journal) Contact Book a Call
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The Science Behind Sauna Temperature: Understanding Heat Stratification in Your Sauna

by David StofferApr 21, 20250 comments

The Science Behind Sauna Temperature: Understanding Heat Stratification in Your Sauna

My First Visit to Finland's Oldest Sauna The first time I visited Rajaportin Sauna in Tampere, Finland, I discovered something fascinating about traditional sauna design. Founded in 1906, Rajaportin is the oldest public sauna in Finland still in operation, featuring a massive wood-fired stove that creates the perfect sauna environment. What immediately struck me was the location of the benches—positioned high above the stove, approximately 6 to 8 feet higher than the heat source. This traditional design made perfect sense once I experienced it. Of course the benches would be elevated—that's where the heat naturally accumulates in the sauna space....

The Science Behind Sauna Temperature: Understanding Heat Stratification in Your Sauna
by David StofferApr 21, 20250 comments

The Science Behind Sauna Temperature: Understanding Heat Stratification in Your Sauna

My First Visit to Finland's Oldest Sauna The first time I visited Rajaportin Sauna in Tampere, Finland, I discovered something fascinating about traditional sauna design. Founded in 1906, Rajaportin is the oldest public sauna in Finland still in operation, featuring a massive wood-fired stove that creates the perfect sauna environment....

Sauna like a Pro - A Friday Winter Night in Tampere
by John SmitsMar 17, 20250 comments

Sauna like a Pro - A Friday Winter Night in Tampere

We pulled up to the lake house in Tempere and heard the buzz of a chainsaw. Our friend and host for the evening, Antti, was standing on the frozen lake, hacking a hole in the ice. It was easily the coolest thing I saw a Finn do all week. After...

Six Takeaways from the Sauna Capital of the world - Tampere, Finland
by David StofferMar 03, 20250 comments

Six Takeaways from the Sauna Capital of the world - Tampere, Finland

Combining better functioning saunas with cold therapy will sustain and enhance the current wave of sauna popularity in America.​​​​​​​​​​​​​​​​

The Keeping Of A Passion
by David StofferFeb 24, 20250 comments

The Keeping Of A Passion

In life it's harder to keep a passion than it is to find new ones

American Sauna Culture
by David StofferFeb 03, 20250 comments

American Sauna Culture

Now in America they're remembering or learning. Hard to know what is first. Building saunas again with stones that can take the heat and benches set high where the air is hot and clean. The old knowledge returning like spring after a long winter. But you had to earn it....

Welcome to Nightjar
by David StofferJul 22, 20243 comments

Welcome to Nightjar

Welcome to Nightjar, where the ancient tradition of Finnish sauna meets modern craftsmanship right here in Grand Rapids, Michigan. Our journey began with a simple passion: a dedication to creating high-end, design-forward saunas that offer an authentic sauna experience like no other. "There's so many ways to mess up a...

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