Efficiency Rating: 85%

Sauna Volume Capacity: Up to 35 cubic meters (1300 cubic feet)

Dimensions: Base Diameter 850 mm (34") x Height 1800 mm (6 feet)

Heater Weight: 1,200 kg (2,646 lbs.)

Steam Chamber Stone Capacity: Up to 130 kg (286 lbs.) (Stones not included)

Heat-Up Time: 3-4 hours

• High-Duty Refractory Core: The heart of your heater. Our kits include premium refractory firebricks designed for extreme temperatures. These bricks form the internal channels that circulate hot gases, capturing heat before it exits your home.

• Structural Carbon Steel Enclosure: Unlike traditional masonry-only builds, our heaters feature a robust round carbon steel shell wrapping the refractory core. This allows for thermal expansion and ensures airtight structural integrity for decades of use.

• Premium Thermal Battery Cladding: Choose your finish. We provide precision-cut decorative stone—available in Soapstone, Serpentine, Red thin brick or Amphibolite. These dense stones act as the primary "thermal battery," absorbing heat from the core and radiating it gently into your room for 12–24 hours. Note: If you selected a brick-facing model, the kit includes high-quality facing bricks instead of stone.

• Specialized Refractory Mortar: Do not use standard cement. We include the exact quantity of commercial-grade refractory mortar and setting materials needed to bond your core and cladding for a safe, crack-resistant seal.