ThermaSol Fortis Outdoor Sauna Cabin (3-4 Person)

A Sanctuary at the End of the Garden

Some retreats you travel to. This one waits in your own backyard.

The Fortis is a fully assembled outdoor cabin with a clean, modern silhouette - a low eave-style roofline and a tinted glass front that reads as architecture, not equipment. Thermally modified Nordic spruce and pinewood wrap the exterior in warm, brushed grain, set against honed black trim and aluminum cladding; the result sits as comfortably beside a contemporary home as a rustic one. Step through the aluminum-framed glass door and the world goes quiet behind dark Parsol glass - light comes in, but the space stays yours.

Inside, brushed thermally modified wood walls meet smooth thermo-aspen benches, a material chosen because it stays stable and resists moisture season after season. The Harvia Virta builds a deep, even heat, and the Xenio touchpad lets you schedule sessions and pre-heat from your phone, so the cabin is warm by the time you walk out to it. Colored light with a remote sets the mood from soft and low to bright and clear - a different room at seven in the morning than at ten at night, and right both times.

It's built to stay outside and shrug off the weather. Layered wood-fiber insulation keeps the heat in through every season, a weather-resistant roof with integrated rainwater management carries the storms away, and the argon-insulated, UV-protected glass holds its clarity year after year. There's no kit to puzzle over and no build to schedule: the Fortis arrives as a finished cabin, set into place in an afternoon, and from that day forward it's simply part of the property.

For the home where wellness isn't a room you visit but a structure you walk out to - a quiet, beautiful fixture of the life you live outdoors.

• Fully assembled outdoor cabin with a tinted glass front - architectural, private, and light-filled
• Thermally modified Nordic spruce/pinewood exterior with honed black trim and aluminum cladding
• Brushed thermally modified wood interior walls with smooth thermo-aspen benches and backrest
• 8mm Parsol dark-grey glass - argon-insulated, UV-protected, for privacy and thermal efficiency
• Professional-grade Harvia sauna heat — start and schedule sessions from your phone
• 12-hour delay start and weekly scheduling - pre-heat on your terms
• RGB LED lighting with remote for personalized mood lighting
• Multi-layer wood-fiber insulation + durable weather-resistant roof with integrated rainwater management - built for all seasons
• Aluminum-framed glass door with hidden hinges
• Seats 3-4

Can the Fortis be used indoors?
No - it's built to live outside. It's a fully assembled, all-season cabin with a weather-resistant roof, insulated construction, and UV-protected tinted glass, designed for gardens, patios, and backyard spaces.

Does it really arrive fully assembled?
Yes - it ships fully assembled on a flatbed trailer, so there's no panel-by-panel build. Because it weighs over a ton, a forklift or crane is required to offload and place it, and a licensed electrician wires the heater. Plan it as a scheduled installation rather than a same-day setup.

What surface can I put it on?
A firm, level surface with slight runoff for drainage - concrete, decking, pavers, or compacted gravel. For a concrete slab, an 8" minimum thickness is recommended and it must carry the full installed load. On an existing deck, verify the structure can support the combined weight of the cabin, occupants, and equipment.

What electrical setup does it need?
The 8kW Harvia Virta heater needs a dedicated 240V, 40-amp circuit; the lighting runs on 110V. All electrical work must be completed by a licensed electrician.

Is it built for cold-weather / year-round use?
Yes. Multi-layer wood-fiber insulation, a durable weather-resistant roof with integrated rainwater management, and argon-insulated glass are designed for all-season performance.

Can I control it from my phone?
Yes - the Harvia Xenio control offers a 12-hour delay start, weekly scheduling, and Wi-Fi control through the MyHarvia app, so it's hot when you want it.

How long does the sauna take to heat up?
Most traditional saunas of this size reach bathing temperature in roughly 30–60 minutes, with outdoor conditions and season affecting timing. The Harvia Xenio control takes the waiting out of it — schedule sessions up to 12 hours ahead or start the heater remotely from the MyHarvia app, so the sauna is hot when you step outside.

What if I need assistance after delivery?
Email hello@aurelinewellness.com and our team will help with placement, installation, or operating questions after your sauna arrives.