Finnleo NorthStar 46 Outdoor Sauna

A sauna is one of the most rewarding wellness additions you can make to an Idaho home — and after a day on the slopes or a cold morning, that deep heat feels even better. But first you face a fundamental choice: indoor or outdoor? That single decision shapes everything — placement, install cost, how it handles Idaho's freeze-thaw winters, and the whole ritual of using it. This buyer's guide compares indoor and outdoor saunas head to head, breaks down traditional vs. infrared (and the Finnleo InfraSauna hybrid), covers heaters and sizing, and explains why Finnleo and Tylö's Finnish-Swedish heritage — including Tylö's world-class heaters — makes them built to last through every Idaho winter.

Two landmark Finnish studies — following over 16,000 participants for up to 39 years — found that regular sauna use is associated with dramatically lower risk of dementia and Alzheimer's disease. This guide breaks down what the research actually says, explains the six biological mechanisms that make sauna bathing protective for the brain, and shows you how to incorporate sauna use into a brain-healthy lifestyle.

They both make you sweat — but the way they deliver heat is fundamentally different. Traditional saunas heat the air to 170–195°F and have 20+ years of research linking regular use to lower cardiovascular mortality and dementia risk. Infrared saunas heat your body directly at 120–150°F and have the strongest evidence for chronic pain relief and accessibility. This guide compares both types side by side — how they work, how they feel, health benefits, installation, costs, and a decision framework to help you choose.