SaunaLife
Wood-Fired Hot Tub for 6 Persons – SaunaLife Model S4 Thermo-Spruce Outdoor Spa
Soak-Series Home Wood-Burning Hot Tub, Natural, Up to 6 Persons
Model S4N Outdoor Wood-Burning Hot Tub
The SaunaLife SOAK-Series Model S4 represents the very best in wood-burning hot tub quality, efficiency, and luxury. Experience the ultimate relaxation with the SaunaLife SOAK-Series Model S4. With its efficient wood-burning design, you’ll enjoy a quality, luxury hot tub experience like never before.
Ready for your hot tub party
The Model S4N wood-fired hot tub arrives completely assembled and is easy to set up. Its ergonomically shaped fiberglass tub provides a comfortable space for up to 6 people. The interior surface is easy to clean, while the exterior is crafted from thermally enhanced spruce for superior weather resistance and durability.
Engineered for efficiency and performance
Engineered and crafted in Northern Europe, this highly efficient hot tub heats in 1/3 of the time compared to traditional wood-fired hot tubs. No electrical connection is required. At the heart of the Model S4 is its self-cleaning corrugated stove with a secondary chamber that transfers heat from the smoke, reducing wood consumption by up to 50% compared with other hot tubs. The air between the fiberglass lining and the wood exterior is super-heated to accelerate the heating process. The stove is engineered to draw cooler water through a lower channel and redistribute it through an upper channel to balance the temperature.
Start enjoying sooner
This efficient wood stove heats 304 gallons of water from 40°F (5°C) to 95°F (35°C) in 1.5 to 2 hours, making it one of the fastest-heating wood-burning hot tubs available.
Relax with friends and family in the luxury of your Model S4 backyard wood-burning hot tub from SaunaLife.
Learn how Infinity Saunas ships your sauna safely to your door. Find details on delivery times, freight shipping, and what to expect when your order
Every Saunalife sauna is protected by a Lifetime Warranty covering the cabin structure and non-electrical components.
Heater warranties are provided directly by the manufacturer and vary by brand:
Harvia: 2 years residential warranty
HUUM: Limited 3-year residential warranty (excluding heating elements)
Saunum: 2 years residential warranty
Soak-Series Home Wood-Burning Hot Tub, Natural, Up to 6 Persons
Model S4N Outdoor Wood-Burning Hot Tub
The SaunaLife SOAK-Series Model S4 represents the very best in wood-burning hot tub quality, efficiency, and luxury. Experience the ultimate relaxation with the SaunaLife SOAK-Series Model S4. With its efficient wood-burning design, you’ll enjoy a quality, luxury hot tub experience like never before.
Ready for your hot tub party
The Model S4N wood-fired hot tub arrives completely assembled and is easy to set up. Its ergonomically shaped fiberglass tub provides a comfortable space for up to 6 people. The interior surface is easy to clean, while the exterior is crafted from thermally enhanced spruce for superior weather resistance and durability.
Engineered for efficiency and performance
Engineered and crafted in Northern Europe, this highly efficient hot tub heats in 1/3 of the time compared to traditional wood-fired hot tubs. No electrical connection is required. At the heart of the Model S4 is its self-cleaning corrugated stove with a secondary chamber that transfers heat from the smoke, reducing wood consumption by up to 50% compared with other hot tubs. The air between the fiberglass lining and the wood exterior is super-heated to accelerate the heating process. The stove is engineered to draw cooler water through a lower channel and redistribute it through an upper channel to balance the temperature.
Start enjoying sooner
This efficient wood stove heats 304 gallons of water from 40°F (5°C) to 95°F (35°C) in 1.5 to 2 hours, making it one of the fastest-heating wood-burning hot tubs available.
Relax with friends and family in the luxury of your Model S4 backyard wood-burning hot tub from SaunaLife.
Learn how Infinity Saunas ships your sauna safely to your door. Find details on delivery times, freight shipping, and what to expect when your order
Every Saunalife sauna is protected by a Lifetime Warranty covering the cabin structure and non-electrical components.
Heater warranties are provided directly by the manufacturer and vary by brand:
Harvia: 2 years residential warranty
HUUM: Limited 3-year residential warranty (excluding heating elements)
Saunum: 2 years residential warranty
FAQ
Shipping
Orders are usually processed within 1 business day and delivered within 3–5 business days, depending on your location and the shipping carrier schedule. Large sauna units are shipped via freight delivery.
Your sauna will be delivered via curbside freight delivery. This means the carrier will deliver it to the nearest accessible point outside your home or building (such as your driveway or curb).
Other
Yes. Once your order ships, you will receive full tracking details so you can follow your delivery step by step.
Yes. All saunas include a manufacturer’s warranty that covers defects in materials and workmanship for a specific period, depending on the model.
Due to the size, handling, and special shipping requirements of sauna units, all sales are considered final. However, if your product arrives damaged or defective, we will arrange a replacement or resolution at no extra cost.
Orders can be canceled within 24 hours of purchase, as long as they have not yet been processed or shipped.
We accept all major credit cards and secure online payment methods to ensure a safe and smooth checkout experience.
Yes. Our support team is available to assist you after your purchase with setup guidance, delivery questions, and product support to ensure a smooth experience.
