SaunaLife Model S6B
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Soak-Series Outdoor Wood-Burning Hot Tub – Black Thermo-Spruce Finish
Up to 7 Bathers
Discover the SaunaLife Model S6B black wood-burning hot tub. 435+ gallons, heats in under 2 hours, fully assembled, no electricity needed. Premium modern outdoor soaking.
Product Description
Bold design. Exceptional performance. Traditional fire.
The SaunaLife Model S6B is the black-finished edition of the SOAK-Series S6 platform — delivering powerful wood-burning performance wrapped in a sleek, modern exterior.
Crafted from thermally enhanced Thermo-Spruce and finished in a deep black protective coating, the S6B offers a contemporary architectural presence while preserving the natural strength and longevity of the wood beneath.
Arriving fully assembled and requiring no electricity, this is a true wood-fired hot tub designed for modern outdoor living.
Performance Without Compromise
Advanced Dual-Compartment Heater
The stainless steel dual-chamber wood-burning system maximizes heat transfer efficiency and reduces fuel consumption by up to 50% compared to conventional wood-fired tubs.
Fast Heat-Up Time
Brings 435+ gallons of water to soaking temperature in as little as 1.5 to 2 hours.
Completely Off-Grid Capable
No electrical connection required. Perfect for remote properties, luxury cabins, lake houses, or backyard retreats.
Premium Construction
– Durable black-painted Thermo-Spruce exterior (1.65” thick)
– Thick dark grey contoured fiberglass interior
– 304 stainless steel wood-burning heater
– Polished stainless steel chimney with cap
– Superior thermal resistance for optimal heat retention
Engineered in Northern Europe
The S6B incorporates a sealed-clean combustion chamber that captures heat from smoke and transfers it directly into the water for maximum efficiency. Its intelligent lower intake and upper redistribution channel ensure uniform water temperature throughout the tub.
The result: faster heating, lower wood consumption, and consistent soaking comfort.
Capacity and Dimensions
Capacity: Up to 7 bathers
Water Volume: 435+ gallons
Exterior Dimensions: 89” Diameter x 40.2” H (226.1 cm x 102.1 cm)
Interior Dimensions: 80.7” Diameter x 35.4” H (205 cm x 89.9 cm)
What’s Included
– Fully assembled hot tub
– Matching steps
– Insulated reinforced foam cover
– Drainage tap
– Polished stainless steel chimney
– Chimney cap
The MB Sovereign Group Positioning
The Model S6B is designed for clients who want both performance and presence — a statement piece that delivers serious wood-fired capability with a modern architectural finish.
Traditional heat. Contemporary design. Built to perform.