
SaunaLife Model S4 Soak Series 6 Person Wood-Fired Hot Tub
Ships in ~ 7-10 business days

Professional Installation Not Required.
Affirm, PayTomorrow, Klarna, HSA/FSA (TruMed) & More.

Buy with confidence. Contact an SF Sauna specialist.
Buy with confidence. Contact an SF Sauna specialist.
A Luxurious, Eco-Friendly Outdoor Hot Tub with Unmatched Efficiency
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.
What’s Included?
Downloads:
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:
Delivery Timeline:
Delivery Timeline:
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.
Installation & Setup:
Saunas are typically very simple to put together. Some are as easy as clamping the 4 walls together.
Electrical Requirements:
Professional Installation: If you require assistance with setup, we can refer you to our preferred installation partners.
Space Considerations: Ensure proper ventilation and clearance before installation. Saunas should be placed on a **level, dry surface** away from moisture-sensitive materials.
Contact Us: To connect with an installer in your area or get a price quote, please call us at 888-995-4450 or email us at info@selectfitnessusa.com.
Sauna Warranty Coverage:
Select Fitness is an authorized dealer for every sauna we sell. All saunas include the manufacturer's original warranty.
Typical warranty coverage includes:
For specifics on your sauna’s warranty, check the product details or contact us for more information.
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When You Work With Our Sauna Specialist, You Get:
Complete the form. A knowledgeable sauna specialist will contact you to help you choose the best sauna for your needs.
“From the first consultation to delivery, Select Fitness made buying my sauna a seamless experience. The team answered all my questions, and now I get to enjoy the best part of my day—relaxing in my new infrared sauna.”