Premium 3-Person Outdoor Scandinavian ThermoWood® Cube Sauna Kit With LED Lighting [MW12] (SAK47582)

Description

Why This One

The Outdoor Sauna That Gets Better Every Year

Solid 1.7" European ThermoWood® Spruce. Tempered glass architectural front. LED lighting. A compact cube design that looks completely intentional in any backyard.

This is the outdoor sauna kit built from material that genuinely improves with age and weather, sized for the backyard that deserves something exceptional without sacrificing an inch of space it does not have to spare.

Step Outside. Close the Door. The World Can Wait.

Your backyard becomes a different place the moment the heat rises. The rich, warm scent of ThermoWood® surrounds you. The glass front frames whatever view you have chosen to face. The LED light settles into a soft glow. Everything that was loud a moment ago goes quiet.

This is what the MW12 is built for.

ThermoWood® Is Not Just a Name

Every panel of this outdoor sauna cabin is milled from European Spruce that has been thermally modified using only steam and high heat, no chemicals, no preservatives, no toxic additives of any kind.

That process changes the wood at a cellular level. It becomes dramatically more resistant to moisture, decay, and insects than untreated timber. It stops expanding and contracting with humidity. It deepens to a warm, rich tone that weathers beautifully outdoors and never needs staining or sealing to stay protected year after year.

The result is a backyard sauna structure that is cleaner to breathe in, longer-lasting than pressure-treated alternatives, and genuinely low maintenance. The air inside stays pure even at peak temperatures because there is nothing in the wood to off-gas.

The Right Size for the Right Backyard

The MW12 shares the same 77.6" width and 83.5" height as its larger sibling, the MW16, but at 47.2" deep it fits beautifully in tighter spaces without feeling small inside. Two people can stretch out in complete comfort. Three can share a session without feeling crowded.

The tempered glass front wall keeps the interior bright and connected to the outdoors. Integrated LED lighting makes evening sessions effortless. The cube profile is clean, contemporary, and Scandinavian, a backyard structure that elevates the space it occupies rather than just occupying it.

Heat Your Way

The MW12 is available in four configurations. Choose the Harvia KIP 6.0KW electric heater in black or silver for smart, convenient traditional heat with a built-in controller. Choose the Harvia M3 wood-burning stove for the authentic, crackling ritual of a true Finnish sauna fired by wood. Or go heater-free if you prefer to source your own.

If you choose the Harvia M3, the experience is different in the best way. The sound of wood catching. The slow build of heat that feels earned. The particular stillness that only a wood-fired sauna in an open backyard can create. It is the oldest wellness ritual in the world, and it has never needed improving.

Wet or dry. Electric or wood-fired. Pour water over the stones for löyly-style steam and the full Scandinavian sauna ritual, in your own backyard.

The Daily Reset That Belongs to You

Those who build a consistent outdoor sauna practice report deeper sleep, reduced joint stiffness, clearer skin, and a quiet daily reset that belongs entirely to them. No membership. No commute. No waiting.

The MW12 puts that practice in your backyard, in a ThermoWood® structure built to hold its warmth, its beauty, and its integrity through years of outdoor seasons.

• 3-person outdoor traditional sauna kit
• 1.7" thick European ThermoWood® Spruce, 100% sustainably sourced Scandinavian timber
• Chemical-free, non-toxic construction, no preservatives or additives
• Tempered glass architectural front wall
• Integrated LED interior lighting under benches
• Contemporary Scandinavian cube profile
• Available with Harvia KIP 6.0KW electric heater (black or silver), Harvia M3 wood-burning stove, or no heater
• Commercial-grade bituminous roofing shingles
• Heavy-duty stainless steel hardware
• 5-year structural warranty on cabin framework
• 1-year warranty on heating unit

Specifications

• Capacity: 3 people
• Exterior Dimensions: 77.6" W x 47.2" D x 83.5" H
• Interior Height: 75.6"
• Wall Thickness: 1.7" solid ThermoWood® panels
• Weight: 1,300-1,390 lbs
• Wall Construction: 1.7" European ThermoWood® Spruce
• Glass: Tempered architectural front wall
• Roofing: Commercial-grade bituminous shingles
• Hardware: Stainless steel
• Lighting: Integrated LED under bench
• Heater Options: No heater / Harvia M3 wood-burning stove / Harvia KIP 6.0KW with built-in controller (black) / Harvia KIP 6.0KW with built-in controller (silver)
• Electrical: Electric heater requires dedicated circuit (per local code); wood-burning model requires proper flue installation
• Country of Origin: Lithuania
• Includes: Pre-cut sauna kit panels, hardware, LED lighting, floor plan manual

Warranty

• Cabin framework: 5-year structural warranty
• Heating unit: 1-year warranty

MANUALS

Floor Plan