The Almanac · Cluster

Sauna Stones

Which rocks belong in a sauna, how to stack them, and when to replace them — the small details that decide the quality of your löyly.

16 articles · page 2 of 2


Sauna Stones

Olivine Diabase: The Standard Sauna Stone

Olivine diabase is the most popular sauna stone for good reason: dense, heat-stable and durable. Here is why it works and how it compares to alternatives.

3 min read

Sauna Stones

How to Clean and Refresh Sauna Stones

Cleaning sauna stones means removing them, rinsing off grit, discarding cracked ones and restacking. Here is how to refresh the pile so the löyly stays strong.

2 min read

Sauna Stones

How Many Sauna Stones Do You Need?

Fill your heater to its rated stone capacity — from 10–20 kg for small electric units to 40 kg or more for big wood stoves. Here is how to judge the amount.

2 min read

Sauna Stones

Ceramic vs. Natural Sauna Stones

Ceramic sauna stones offer consistency and long life; natural stones are traditional and inexpensive. Here is how the two compare and which to choose.

2 min read

Sauna Stones

The Best Sauna Stones for a Soft, Strong Löyly

The best löyly comes from dense, low-porosity stones with a rough surface, loaded loosely in a good size mix. Here is what makes stones give great steam.

3 min read