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Care and maintenance

  1. 10.1 After every sessionThe single most important habit: let the cabin dry. Four-step routine, no chemicals required.
  2. 10.2 Weekly routineA 5-10 minute weekly upkeep — wipe benches and floor, clean the glass, inspect the heater, check the vents.
  3. 10.3 Monthly routineA monthly deeper inspection — door hinges, wood condition, lights and remote, stones, and a calibration test of the heater.
  4. 10.4 Spring carePost-winter exterior inspection — damage from snow load and freeze-thaw, drainage restoration, roof shingle check.
  5. 10.5 Summer careHot, dry climate considerations — wood drying, vent obstruction by insects, drainage after heavy rain.
  6. 10.6 Fall carePre-winter exterior inspection — roof shingles, drainage, snow management plan, end-of-season insect check.
  7. 10.7 Winter careSauna heats normally in winter; what changes is exterior care — ice on the path, snow on the roof, extended heat-up time below -20°F.
  8. 10.8 Cleaning the woodWater and a soft cloth — that's it. What never to use, plus what to do if a stain sets in.
  9. 10.9 Cleaning the glassRoutine cleaning, mineral buildup removal with vinegar, and confirmation that factory tinting won't wash off.
  10. 10.10 Wood movement, checking, and color changeWhat's normal (surface checks, color variation, mild creaks) vs. concerning (full-thickness cracks, splits across the grain, soft spots).
  11. 10.11 Treating the wood and what to avoidThe wood does not need chemical treatment. Optional sauna-safe oil for exterior cosmetic upkeep. Never apply varnish, polyurethane, sealant, or any film-forming finish.
  12. 10.12 Mildew and mold preventionProperly maintained traditional saunas don't develop mildew. The conditions that lead to it, prevention practices, and what to do if you notice it.
  13. 10.13 Insects and wildlifeCommon issues (wasps in vents, spider webs, rodents under the base), prevention, and what to do if you find a nest.
  14. 10.14 Replacement partsCommon replacement parts available through Bettr support and how to order. For warranty-covered parts, see Section 13.

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