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Sauna Heater Care Guide: Ensuring Longevity and Optimal Performance


Time to read 2 min

A well-maintained sauna heater can serve you for many years, whether it's in a residential or commercial setting. Regular maintenance is not only crucial for the longevity of the heater but also for efficient energy consumption and a consistent sauna experience. This guide outlines the importance of sauna stone care and provides steps on how to reseat them properly.

The Importance of Sauna Heater Maintenance

For sauna heaters that have internal stones positioned between heating elements, the stones play a critical role in heat distribution. Over time, with repeated heating and cooling cycles and after having water poured over them, these stones tend to shift. This shift causes the stones to compact closer together. In due course, some stones may also crack or crumble, leading to further compaction.

When sauna stones become too compacted:

  • Air Circulation is Hindered: Proper air circulation, which provides most of the heat in a sauna through convection, is limited. This limited airflow can make the sauna take longer to heat, resulting in excessive energy consumption and increased operational costs.

  • Moisture Gets Trapped: When stones are compacted, moisture can get trapped next to the heating elements. This moisture can cause corrosion and eventually lead to element failure, incurring additional replacement costs.

Reseating Sauna Stones: Step-by-Step Guide

For Sauna Heaters with Internal Stones Between Heating Elements:

  1. Safety First: Before starting, ensure the heater is cold and turn off the electrical breaker switch.
  2. Removal: Take off the top wire stone guard and remove all the sauna heater stones. Dispose of any stones that are broken or crumbling.
  3. Cleaning: Rinse any sediment from the remaining solid stones.
  4. Reseating: Position the stones back into the heater. Ensure they're stacked loosely and evenly between the heating elements.
  5. Replacing Broken Stones: Introduce new high-quality sauna stones, such as Vulcanite or Olivine Diabase sauna stones, which are suitable for most electric sauna heater brands. It's essential to use stones of the correct type and size to prevent damage to heating elements and for optimal airflow.
  6. Final Steps: After reseating, reinstall the wire guard. Once done, you should notice your sauna heating up more efficiently.

Note: Only use stones provided or recommended by your heater brand. Using other stones can void heater warranties and potentially damage the heater.

For Sauna Heaters with Stones Only in the Top Tray:

  1. Removal: Take out the stones.
  2. Cleaning and Replacement: Clean the stones and replace any broken ones as needed.

Maintenance Frequency

  • Commercial Saunas: For saunas that cater to a larger audience, we recommend you reseat stones every 2-3 months. This ensures minimal energy consumption, reduced maintenance costs, and an enhanced sauna experience for guests.

  • Residential Saunas: For home saunas used multiple times a week, we advise you to reseat the stones once per year.

  • When it's time for you to replace your stones or just need some extra, feel free to view our collection of high-quality rounded & split-face sauna stones here.

In conclusion, regular care and maintenance of your sauna heater stones not only extend the heater's life but also ensure a relaxing and efficient sauna experience. Proper stone care reduces energy costs, prevents corrosion, and provides an overall better sauna session.