{"product_id":"thermasol-fortis-4-person-outdoor-sauna-cabin","title":"ThermaSol Fortis 4-Person Outdoor Sauna Cabin | Fully Assembled","description":"\u003csection class=\"product-intro\"\u003e\n\u003cp\u003eThe ThermaSol Fortis is a fully assembled, pre-wired 4-person outdoor sauna cabin built for year-round use. Its contemporary design pairs an 8mm Parsol dark grey tinted glass facade with aluminum framing and hidden hinges on the exterior, and brushed thermo spruce walls with thermo aspen benches on the interior. Heat is delivered by a Harvia Virta electric heater, managed via the Harvia Xenio control system, and retained by multi-layer wood fiber insulation and a heavy-duty Firestone EPDM roof. Integrated RGB LED lighting completes the interior environment. Made to order and delivered fully assembled with pre-wired electrical systems, the Fortis is ready for connection upon arrival. Lead time is 12 to 13 weeks. Free USA shipping included.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-why-choose\"\u003e\n\u003ch2\u003eWhy Customers Choose the ThermaSol Fortis\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFully assembled and pre-wired — no major on-site construction required\u003c\/li\u003e\n\u003cli\u003e8mm Parsol dark grey tinted glass facade for solar protection and privacy\u003c\/li\u003e\n\u003cli\u003eHarvia Virta electric heater with Harvia Xenio advanced control system\u003c\/li\u003e\n\u003cli\u003eHeavy-duty Firestone EPDM roof for all-season weather protection\u003c\/li\u003e\n\u003cli\u003eMulti-layer wood fiber insulation for energy-efficient heat retention year-round\u003c\/li\u003e\n\u003cli\u003eThermo aspen benches — moisture-resistant and dimensionally stable\u003c\/li\u003e\n\u003cli\u003eBrushed thermo spruce interior walls for a refined natural wood finish\u003c\/li\u003e\n\u003cli\u003eIntegrated RGB LED lighting for customizable session ambiance\u003c\/li\u003e\n\u003cli\u003eContemporary eave-style roofline with modern architectural design\u003c\/li\u003e\n\u003cli\u003eFree USA shipping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-highlights\"\u003e\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003eFully Assembled \u0026amp; Pre-Wired\u003c\/h3\u003e\n\u003cp\u003eThe Fortis arrives fully assembled with pre-wired electrical systems, eliminating the need for on-site cabin construction. Installation requires a suitable electrical connection by a licensed electrician — once connected, the cabin is ready for use.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003e8mm Parsol Dark Grey Glass Facade\u003c\/h3\u003e\n\u003cp\u003eThe front-facing facade features 8mm Parsol dark grey tinted glass with aluminum framing and hidden hinges, providing solar protection and privacy while giving the cabin a clean, contemporary exterior appearance.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003eHarvia Virta Heater \u0026amp; Harvia Xenio Controls\u003c\/h3\u003e\n\u003cp\u003eThe Harvia Virta electric heater delivers consistent, high-performance heat output. It is managed via the Harvia Xenio advanced control system, which provides precise temperature and session management from an intuitive interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003eFirestone EPDM Roof\u003c\/h3\u003e\n\u003cp\u003eThe heavy-duty Firestone EPDM rubber roof is designed for long-term outdoor durability across all seasons, providing reliable weather protection for the cabin structure and insulation system.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003eMulti-Layer Wood Fiber Insulation\u003c\/h3\u003e\n\u003cp\u003eThe eco-friendly multi-layer wood fiber insulation is engineered to retain heat effectively throughout the year, supporting consistent sauna temperatures while minimizing energy consumption during each session.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003eThermo Spruce \u0026amp; Thermo Aspen Interior\u003c\/h3\u003e\n\u003cp\u003eThe interior walls are finished in brushed thermo spruce, and the benches are constructed from thermo aspen — a heat-treated wood selected for its moisture resistance and dimensional stability in high-heat, high-humidity sauna conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003eIntegrated RGB LED Lighting\u003c\/h3\u003e\n\u003cp\u003eBuilt-in RGB LED lighting allows you to select from a range of colors to customize the visual atmosphere of each session. Lighting controls are integrated into the cabin's interior.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"highlight-item\"\u003e\n\u003ch3\u003eContemporary Eave-Style Roofline\u003c\/h3\u003e\n\u003cp\u003eThe modern eave-style roofline creates a slight overhang that frames the cabin's exterior and contributes to its architectural presence in outdoor settings such as gardens, patios, and dedicated wellness areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-specifications\"\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermaSol Fortis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4 Person\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOutdoor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAssembly\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFully assembled and pre-wired\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExterior Facade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8mm Parsol dark grey tinted glass, aluminum framing, hidden hinges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoofline Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eContemporary eave style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRoof Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFirestone EPDM (heavy-duty rubber)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExterior Wood\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNordic thermo spruce and pinewood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInterior Wall Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBrushed thermo spruce\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBench Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermo aspen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsulation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMulti-layer wood fiber (eco-friendly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeater\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHarvia Virta Electric Heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eControl System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHarvia Xenio\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLighting\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIntegrated RGB Color LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMade to order — 12 to 13 weeks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFree USA shipping\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14-FORTIS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFull Dimensions \u0026amp; Electrical Specs\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSee manufacturer spec sheet or contact us before purchasing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-ideal-for\"\u003e\n\u003ch2\u003eIdeal For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHomeowners adding a premium outdoor sauna to a garden, patio, or backyard wellness area\u003c\/li\u003e\n\u003cli\u003eThose who want a fully assembled, ready-to-connect sauna without on-site construction\u003c\/li\u003e\n\u003cli\u003eYear-round outdoor sauna use in varying climates\u003c\/li\u003e\n\u003cli\u003eBuyers seeking a design-forward outdoor cabin with a contemporary glass and wood aesthetic\u003c\/li\u003e\n\u003cli\u003eHouseholds of up to four people sharing a dedicated outdoor wellness space\u003c\/li\u003e\n\u003cli\u003eLong-term outdoor installations where weather durability and build quality are priorities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-important-info\"\u003e\n\u003ch2\u003eImportant Information\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a made-to-order product with a lead time of 12 to 13 weeks from order confirmation. Plan your purchase and site preparation timeline accordingly.\u003c\/li\u003e\n\u003cli\u003eThe Fortis arrives fully assembled and pre-wired. A licensed electrician must complete the final electrical connection at your installation site. Verify that your site meets the heater's voltage and amperage requirements before purchasing.\u003c\/li\u003e\n\u003cli\u003eSite preparation — including a level, load-bearing foundation or base — is the buyer's responsibility and must be completed before delivery. Contact us for site preparation guidance before ordering.\u003c\/li\u003e\n\u003cli\u003eEnsure the installation location provides adequate clearance around the cabin for ventilation, access, and local building code compliance. Check local permit requirements before installation.\u003c\/li\u003e\n\u003cli\u003eDo not leave the sauna unattended while in operation. Follow all heater and control system manufacturer instructions included with the unit.\u003c\/li\u003e\n\u003cli\u003eThis product is intended for adult use. Keep children away from the sauna during operation.\u003c\/li\u003e\n\u003cli\u003eReview the full manufacturer spec sheet for complete dimensional and electrical specifications before finalizing your site plan. Contact us with any pre-purchase questions.\u003c\/li\u003e\n\u003cli\u003eConsult a qualified healthcare professional before use if you have any medical conditions, are pregnant, or are taking medications that may be affected by heat exposure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow long does it take to receive the ThermaSol Fortis?\u003c\/summary\u003e\n\u003cp\u003eThe ThermaSol Fortis is a made-to-order product with a lead time of 12 to 13 weeks from order confirmation. Free USA shipping is included. Plan your site preparation to be complete before the delivery window.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDoes the Fortis arrive fully assembled?\u003c\/summary\u003e\n\u003cp\u003eYes. The Fortis is delivered fully assembled and pre-wired. Installation requires a licensed electrician to complete the final electrical connection at your site. No on-site cabin construction is required.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat heater and control system does the Fortis include?\u003c\/summary\u003e\n\u003cp\u003eThe Fortis includes a Harvia Virta electric heater managed by the Harvia Xenio advanced control system. Full electrical specifications — including wattage and voltage requirements — are available in the manufacturer spec sheet.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the Parsol dark grey glass facade?\u003c\/summary\u003e\n\u003cp\u003eThe front-facing facade features 8mm Parsol dark grey tinted glass with aluminum framing and hidden hinges. The tinted glass provides solar protection and privacy while giving the cabin a contemporary exterior appearance.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs the Fortis suitable for year-round outdoor use?\u003c\/summary\u003e\n\u003cp\u003eYes. The Fortis is designed for outdoor use across all seasons. The heavy-duty Firestone EPDM roof and multi-layer wood fiber insulation are selected for weather durability and year-round thermal performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to prepare a foundation before delivery?\u003c\/summary\u003e\n\u003cp\u003eYes. A level, load-bearing foundation or base must be in place before the cabin is delivered. Site preparation is the buyer's responsibility. Contact us before ordering for guidance on foundation requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat are the full dimensions of the Fortis?\u003c\/summary\u003e\n\u003cp\u003eFull interior and exterior dimensions are available in the manufacturer spec sheet. Please review the spec sheet or contact us before purchasing to confirm the Fortis will fit your intended installation site.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre local permits required for outdoor sauna installation?\u003c\/summary\u003e\n\u003cp\u003ePermit requirements vary by location. We recommend checking with your local building authority before purchasing to confirm whether a permit is required for an outdoor sauna structure at your property.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection class=\"product-closing\"\u003e\n\u003cp\u003eThe ThermaSol Fortis is a fully assembled, weather-ready outdoor sauna cabin built with quality materials — Harvia Virta heating, Harvia Xenio controls, an EPDM roof, thermo aspen benches, and a Parsol glass facade — in a design suited to modern outdoor living spaces. If you're planning a permanent outdoor sauna installation and want a complete, ready-to-connect solution, the Fortis is a well-specified option. Review the spec sheet, confirm your site is ready, and contact us with any questions before ordering.\u003c\/p\u003e\n\u003c\/section\u003e\n\n\u003cp class=\"product-disclaimer\" style=\"text-align: center;\"\u003e\u003csmall\u003e\u003cem\u003eThis product is intended for general wellness and relaxation use. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any medical condition. Consult a qualified healthcare professional before use if you have any health concerns.\u003c\/em\u003e\u003c\/small\u003e\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How long does it take to receive the ThermaSol Fortis?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The ThermaSol Fortis is a made-to-order product with a lead time of 12 to 13 weeks from order confirmation. Free USA shipping is included.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Does the Fortis arrive fully assembled?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. The Fortis is delivered fully assembled and pre-wired. 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The heavy-duty Firestone EPDM roof and multi-layer wood fiber insulation are selected for weather durability and year-round thermal performance.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do I need to prepare a foundation before delivery?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. A level, load-bearing foundation or base must be in place before the cabin is delivered. Site preparation is the buyer's responsibility.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the full dimensions of the Fortis?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Full interior and exterior dimensions are available in the manufacturer spec sheet. 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