/PRNewswire-PRWeb/ -- KEY TAKEAWAYS Solaris by Thermasol is the first fully off-grid solar-powered sauna available in the United States. Solaris was recently... Solaris by Thermasol is the first fully off-grid solar-powered sauna available in the United States. Solaris was recently named one of TIME's Best Inventions of 2025. The sauna operates fully off-grid using integrated solar panels and battery storage... [6272 chars]
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