SaunaLife Model S4N – Soak-Series Outdoor Wood-Fired Hot Tub (Natural, Up to 6 Persons)

Immerse yourself in the timeless luxury of natural fire-heated wellness with the SaunaLife Model S4N — a beautifully hand-crafted wood-fired hot tub built for pure, restorative relaxation. Designed for up to six bathers, the Model S4N delivers a truly off-grid experience, powered only by fire and nature.

Constructed from Thermo-Spruce, a sustainably treated Nordic wood that lasts twice as long as cedar, this hot tub combines durability with refined Scandinavian design. Inside, the dark grey contoured fiberglass lining provides superior comfort and ergonomic support for prolonged soaking sessions.

At its core, the 304 stainless steel wood-burning heater features dual heat chambers and an intelligent airflow design that reduces wood consumption by up to 50%. The result is rapid, even heating — bringing 304 gallons of water to optimal soaking temperature in under two hours.

Delivered fully assembled and completely electricity-free, the SaunaLife Model S4N is the essence of simplicity, elegance, and performance. Every detail — from the polished stainless steel chimney to the precision-crafted Thermo-Spruce surround — reflects authentic European craftsmanship.

• Fully Off-Grid Operation: No electrical connections required — powered entirely by natural fire.

• Thermo-Spruce Construction: Outlasts cedar up to 2× with enhanced weather and water resistance.

• Elegant Natural Finish: Showcases the organic grain of Thermo-Spruce for a timeless, Nordic-inspired look.

• Ergonomic Fiberglass Interior: Contoured seating offers exceptional comfort and easy maintenance.

• High-Efficiency Dual-Chamber Heater: Reduces wood consumption and heats faster than traditional stoves.

• Fast Heating Performance: Heats 304 gallons to ideal temperature in 1.5–2 hours.

• Superior Heat Retention: Air layer insulation between wood and fiberglass maximizes thermal efficiency.

• Polished Stainless Steel Chimney: Adds durability and a sleek visual contrast.

• Includes Insulated Cover & Steps: Simplifies entry, enhances safety, and conserves heat.

• Handcrafted in Northern Europe: Built by artisans who specialize in thermal wellness design.

• Fully Assembled SaunaLife Model S4N Hot Tub (Natural Finish)

• 304 Stainless Steel Wood-Burning Heater

• Polished Stainless Steel Chimney & Cap

• Thermo-Spruce Steps

• Foam-Insulated Cover with Dark Grey Marine Vinyl Exterior

• Integrated Drainage Tap

• User Manual & Care Guide

• 2-Year Limited Warranty (Consumer Use)

This product ships via freight carrier (LTL) throughout the contiguous United States. Shipping costs are calculated at checkout based on your selected product.

Freight delivery is curbside only — the carrier will lower your shipment to the ground at the end of your driveway or curb. You are responsible for moving the product to its final installation location.

A delivery appointment will be scheduled in advance. Please inspect your shipment carefully before signing the delivery receipt and note any visible damage on the Bill of Lading at time of delivery.

For deliveries to Alaska, Hawaii, or Puerto Rico, please contact us prior to ordering for a freight quote.

Manual Links:

• SaunaLife Warranty

• SaunaLife S4N Installation Manual

• SaunaLife S4 Dimensions Diagram