SaunaLife S4N Wood-Fired Hot Tub | 6-Person Off-Grid Outdoor Soaking Tub
- Authorized Retailer of SaunaLife
- Full Manufacturer Warranty Included
- Financing Options Available
- U.S.-Based Customer Support
- Free Freight Shipping to the Contiguous U.S.
6-Person | Off-Grid Wood-Burning | Thermo-Spruce Exterior | Delivered Fully Assembled
No electricity. No chemicals. No waiting for a technician. The SaunaLife SOAK-Series Model S4N is a fully assembled, wood-fired outdoor hot tub that heats itself using a built-in stainless steel wood-burning heater — making it the ultimate off-grid soaking experience. With a 304-gallon capacity and room for up to six bathers, it's built for families, gatherings, and anyone who wants the primal pleasure of hot water under the open sky.
The Thermo-Spruce exterior weathers beautifully outdoors, while the smooth fiberglass interior is easy to clean and maintain year-round. The S4N arrives fully assembled — no kit building required.
Who This Is For
The S4N is ideal for homeowners who want a premium off-grid outdoor soaking experience without the complexity of electrical installation or chemical maintenance systems. It's a natural fit alongside a sauna, cold plunge, or as a standalone backyard wellness centerpiece.
Why Choose the SaunaLife S4N
- Fully off-grid — no electrical connection required
- Integrated stainless steel wood-burning heater with dual heat chamber design
- Thermo-Spruce exterior — thermally modified for outdoor durability and dimensional stability
- Smooth fiberglass interior for comfortable seating and easy cleaning
- Insulated cover included for heat retention between sessions
- Delivered fully assembled — no kit building required
- Designed and handcrafted in Northern Europe
Key Features
- 6-person wood-fired outdoor hot tub — SOAK-Series
- 304-gallon water capacity
- Integrated stainless steel wood-burning heater
- Dual heat chamber design for efficient heat transfer
- Thermo-Spruce exterior with weather-resistant properties
- Contoured fiberglass interior seating
- Insulated cover for heat retention
- Integrated drainage tap
- Matching Thermo-Spruce access steps included
- Chimney and chimney cap included
- Delivered fully assembled
Specifications
- Model: S4N (SOAK-Series)
- SKU: SL-MODELS4N
- GTIN/Barcode: 810127971974
- Capacity: Up to 6 bathers
- Water Capacity: 304 gallons
- Exterior Material: Thermo-Spruce
- Interior: Fiberglass liner
- Exterior Dimensions: 79" Diameter x 37" H
- Interior Dimensions: 71" Diameter x 33" H
- Max Temperature: 106°F
- Heating: Integrated stainless steel wood-burning heater
- Electrical Requirements: None
- Shipping Dimensions: 91" W x 46" D x 87" H
- Shipping Weight: 595 lbs
What's Included
- Fully assembled SaunaLife Model S4N hot tub
- Integrated stainless steel wood-burning heater
- Insulated cover
- Thermo-Spruce access steps
- Drainage system with tap
- Chimney and chimney cap
- Installation instructions
Shipping & Delivery
Free freight shipping is included for delivery within the contiguous United States. The S4N arrives fully assembled on a wooden pallet encased in wood for solid protection, delivered by scheduled curbside freight appointment. In-stock orders typically ship within 4–7 business days.
- Shipping Dimensions: 91" W x 46" D x 87" H
- Shipping Weight: 595 lbs
- Delivery is by appointment — you will be contacted to schedule
- Curbside delivery only — driver lowers to ground level
Site Preparation
- Requires a level, stable outdoor surface — concrete pad, pavers, or reinforced deck recommended
- No electrical connection required
- Ensure proper clearance for chimney and ventilation
- Review applicable local codes and permit requirements
Warranty
Prime Regeneration is an authorized retailer of SaunaLife products. Full manufacturer warranty coverage applies. See the SaunaLife Manufacturer Warranty (PDF).
Manuals & Documentation
FAQ
Does the S4N require electricity?
No. The S4N is fully off-grid and uses an integrated wood-burning heater. No electrical connection is required.
Does the S4N arrive assembled?
Yes. The Model S4N is delivered fully assembled — no kit building required on-site.
What is the maximum water temperature?
The S4N can reach a maximum temperature of approximately 106°F.
What foundation is required?
A level, stable outdoor surface is required — concrete pad, pavers, or a reinforced deck are recommended. The tub cannot be placed on bare ground or an unsupported surface.
Is shipping included?
Yes. Free freight shipping is included for delivery within the contiguous United States. Delivery is by appointment — curbside only.
Is financing available?
Yes. Financing options are available for this purchase. Contact us or proceed to checkout to explore available financing plans.
Choose options
SaunaLife S4N Wood-Fired Hot Tub | 6-Person Off-Grid Outdoor Soaking Tub Review Summary
What people like
Pros
- Fast Heating Performance: The innovative stove design allows the water to reach soaking temperatures in as little as 1.5 to 2 hours.
- Durable Exterior Construction: Crafted from thermally modified spruce, the exterior provides exceptional weather resistance and long-lasting durability.
- Spacious Ergonomic Interior: The contoured fiberglass lining comfortably seats up to 6 adults and is designed for easy cleaning.
- Efficient Fuel Usage: The self-cleaning stove features a secondary heat chamber that reduces wood consumption by up to 50% compared to traditional models.
- Easy Setup Process: The unit arrives fully assembled, allowing for a quick and effortless installation in your backyard.
Powered by OneReview