Last updated: March 2026
By using ThermalFinn.com, you agree to these terms.
Not Medical Advice
ThermalFinn publishes educational content about sauna use, including articles about health research. None of this content is medical advice. We aren’t doctors, and we don’t play doctors on the internet.
The health articles on this site reference peer-reviewed studies and cite specific papers. But citing research is not the same as giving you a diagnosis or treatment plan. Every person’s health situation is different.
Talk to your doctor before starting a sauna routine, especially if you have heart disease, high blood pressure, or any condition that affects how your body handles heat. Don’t change, start, or stop any medical treatment based on what you read here.
Not Professional Advice
The build guides, electrical information, and product recommendations on this site are for general educational purposes. They don’t replace hiring a licensed electrician, contractor, or building inspector.
Sauna construction involves high-voltage electrical work, fire safety considerations, and structural requirements that vary by local building codes. Always hire qualified professionals for electrical and construction work. Always check your local building codes before starting a project.
The heater sizing calculator provides estimates based on general formulas. Real-world conditions vary. A qualified installer should confirm your heater selection and electrical requirements before purchase.
Affiliate Relationships
ThermalFinn may introduce affiliate links after a retailer approves the partnership. Paid referrals will be disclosed beside the link. See our Affiliate Disclosure page for full details.
Our core heater comparisons use manufacturer documentation. We have not performed hands-on heater testing.
Accuracy and Errors
We work hard to keep content accurate and up to date. But mistakes happen. Product specs change. Studies get retracted or updated. Prices fluctuate.
We don’t guarantee that every piece of information on this site is correct at the moment you read it. If you spot an error, let us know at hello@thermalfinn.com so we can fix it.
Limitation of Liability
ThermalFinn is not liable for any injury, property damage, financial loss, or other harm resulting from your use of information on this site. You use sauna products and follow construction or health guidance at your own risk.
This includes but isn’t limited to: burns, electrical injuries, water damage, structural failures, adverse health reactions, or product purchases that don’t meet your expectations.
Intellectual Property
All original content on ThermalFinn.com (articles, calculator code, design, graphics) is owned by ThermalFinn. You can link to our content and quote short excerpts with attribution. Don’t copy full articles or repurpose our content without written permission.
Third-Party Links
This site links to external websites (retailers, research papers, manufacturers). We don’t control those sites and aren’t responsible for their content, privacy practices, or availability.
Changes to These Terms
We may update these terms. The “last updated” date at the top of this page reflects the most recent revision. Continued use of the site after changes means you accept the updated terms.
Contact
Questions about these terms? Email hello@thermalfinn.com.