SaunaLife Model S4 Soak Series 6 Person Wood-Fired Hot Tub

SKU: SL-MODELS4
Regular price $6,640.00
Regular price Sale $6,990.00 Sale price $6,640.00

Usually Ships Out: 4-8 Business Days

Once an order is processed, packed, and shipped, we will send tracking information.

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SaunaLife S4 Soak Series 6 Person Wood-Fired Hot Tub - Fully Assembled

A Luxurious, Eco-Friendly Outdoor Hot Tub with Unmatched Efficiency

SaunaLife S4 Wood-Fired Hot Tub - Fully Assembled

Experience the ultimate in outdoor relaxation with the SaunaLife S4 Wood-Fired Hot Tub. Designed for efficiency, comfort, and durability, this fully assembled hot tub provides a spacious, ergonomic soaking experience for up to 6 bathers.

Unlike traditional hot tubs, the S4 requires no electricity, making it an eco-friendly and cost-effective option for those seeking a pure, off-grid soaking experience. Engineered in Northern Europe, the S4’s advanced wood-burning heating system heats 304 gallons of water in just 1.5 to 2 hours, which is three times faster than traditional wood-fired hot tubs.

Its innovative dual-chamber stove design reduces wood consumption by up to 50%, while the air-heated insulation system ensures optimal heat retention. Built with 1.65” thick Thermo-Spruce, the S4’s exterior lasts twice as long as Cedar, offering superior weather resistance and durability.

Inside, the dark grey fiberglass lining provides a smooth, contoured surface for maximum comfort and easy maintenance. Complete with matching wooden steps, an insulated foam cover, and a stainless steel chimney, the S4 is a premium, low-maintenance hot tub built for long-lasting enjoyment.

Soak-Series Model S4 Features

  • 1.65” Thick Thermo-Spruce Exterior
    • Lasts up to 2X longer than Cedar for superior outdoor durability.
    • Naturally resistant to weather, moisture, and decay.
  • 304 Stainless Steel Wood-Burning Heater
    • Dual heat compartments for 50% more efficiency.
    • Self-cleaning corrugated stove reduces wood consumption.
  • Polished Stainless Steel Chimney with Protection Cap: Prevents heat loss and enhances heating efficiency.
  • Heats Water in Just 1.5 - 2 Hours: Warms 304 gallons from 40°F to 95°F in record time.
  • Eco-Friendly, No Electricity Required: Off-grid hot tub solution – perfect for cabins, retreats, and backyards.
  • Innovative Heat Circulation System
    • Super-heated air between the fiberglass lining and wood exterior accelerates heating.
    • Cooler water is drawn through a lower channel and redistributed through an upper channel for even temperature distribution.
  • Seats Up to 6 People: Perfect for social gatherings, family relaxation, or solo retreats.
  • Dark Grey Contoured Fiberglass Lining
    • Ergonomically shaped for superior bather comfort.
    • Easy to clean, non-porous surface for low maintenance.
  • Matching Thermo-Spruce Steps for Easy Access: Provides safe and convenient entry into the hot tub.
  • Extra Thick, Steel-Reinforced Foam Insulated Cover
    • Folds for easy removal and storage.
    • Dark grey marine-grade vinyl exterior for durability.
  • Integrated Hot Tub Drainage Tap: Allows for easy water management and cleaning.

Model S4 Wood-Fired Hot Tub Specifications

  • Capacity: Up to 6 bathers
  • Exterior Dimensions: 79” Diameter x 37” H
  • Interior Dimensions: 71” Diameter x 33” Deep
  • Weight: 595 lbs
  • Water Capacity: 304 Gallons
  • Material: Thermo-Spruce Exterior, Fiberglass Interior
  • Heating System: 304 Stainless Steel Wood-Burning Stove
  • Chimney: Polished Stainless Steel with Protective Cap

What’s Included?

  • Luxury Thermo-Spruce Hot Tub (Fully Assembled & Ready to Use)
  • 304 Stainless Steel Wood-Burning Heater
  • Polished Stainless Steel Chimney with Cap
  • Ergonomic Dark Grey Fiberglass Lining
  • Matching Thermo-Spruce Wooden Steps
  • Extra Thick, Insulated Foam Cover (Steel Reinforced, Foldable)
  • Integrated Drainage Tap for Easy Water Management

Downloads: 

Soak-Series Model S4

Elevate Your Backyard with the SaunaLife S4 – A Fully Assembled, Eco-Friendly, & Fast-Heating Wood-Fired Hot Tub for the Ultimate Relaxation Experience!

Order Processing: Once you place your order, you'll receive an order confirmation email. Please allow 1-3 business days for processing. If there are any unexpected delays, we’ll reach out to you immediately.

Shipping Methods:

  • Standard Shipping: Small items ship with UPS, FedEx, or USPS. They usually do not need a delivery signature.
  • Freight Shipping: Large or heavy items ship with a box truck to your curbside or loading dock. They will schedule a delivery appointment when the shipment is in your area.

Delivery Timeline:

  • Processing: Please allow 1-3 business days for us to process your order in our system.
  • Handling Time: This product should ship out in days from the time it is processed.
  • Transit Time: Ground orders take 1-5 business days. Freight shipments may take 3-10 business days, depending on your location.
  • Delivery Appointment: For freight deliveries, the carrier will contact you to set a delivery time. Someone must be present to receive the delivery.

Receiving Your Shipment: Inspect your shipment for damage before signing the delivery receipt. For any issues, mark “DAMAGED, NEEDS REVIEW,” take photos, and contact us within 2-3 business days.

Warranty Information:

We’re an authorized dealer; all products include the original manufacturer’s warranty. See product details for coverage specifics.

Questions or a claim? Contact us or the manufacturer for assistance.