SaunaLife S4 Wood-Burning Hot Tub – 6 Person

A Wood-Fired Hot Tub for Elevated Outdoor Wellness

Transform your backyard into a private retreat with the SaunaLife SOAK-Series Model S4 — a premium, wood-burning hot tub designed in Northern Europe for those who value comfort, craftsmanship, and the timeless ritual of relaxation. Built to accommodate up to six bathers, the S4 invites connection, recovery, or simply quiet moments under the stars.

Crafted from Thermo-Spruce that lasts twice as long as cedar and paired with a dark grey ergonomic fiberglass interior, this hot tub balances natural beauty with everyday durability. At its heart, a high-efficiency stainless steel stove heats 304 gallons of water to 95°F in just 1.5–2 hours while using less wood — delivering eco-friendly performance without electricity.

Arriving fully assembled with steps, insulated cover, and chimney included, the SOAK-Series Model S4 is more than a tub — it’s a complete outdoor wellness experience, ready to enjoy the moment it arrives.

Highlights

• Eco-Friendly Wood-Burning Heat – Efficient stainless steel stove, no electricity required
• Spacious Capacity – Comfortably seats up to 6 people with 304 gallons of water
• Thermo-Spruce Exterior – Lasts up to 2X longer than cedar; durable and weather-resistant
• Ergonomic Fiberglass Interior – Dark grey, contoured, easy-to-clean surface
• Rapid Heating – Warms water to 95°F in 1.5–2 hours with reduced wood usage
• Complete Package – Ships fully assembled with insulated cover, chimney, steps, and drainage tap
• Northern European Craftsmanship – Premium design built for long-term performance

Specifications

• Model: S4B
• Capacity: 6 people
• Exterior: Thermo-Spruce wood
• Interior: Fiberglass, dark grey
• Interior Dimensions: 71" diameter × 33" D
• Exterior Dimensions: 79" diameter × 37" H
• Water Capacity: 304 gallons
• Filled Weight: 3,064 lbs
• Stove Dimensions: 19.8" L × 11.8" W × 13.1" H
• Chimney Dimensions: 95" H × 4.7" diameter
• Max Wood Length: 16"
• Max Temperature: 106°F
• Shipping Dimensions: 91" L × 46" W × 87" H
• Shipping Weight: 595 lbs

Why We Curated It
Selected for its eco-friendly design, durability, and spa-level performance, the SaunaLife SOAK-Series Model S4 brings the essence of a luxury wellness retreat directly into your outdoor space.

Order today and bring the luxury of a private wellness retreat into your home.