SaunaLife Model S4B Wood-Burning Hot Tub — Black, 6 Person

The six-person wood-fired hot tub in the dark finish. No electrical connection required, which matters when the tub is going somewhere a trench and a subpanel aren't.

On the colour: the exterior is a charcoal stain on thermo-spruce rather than an opaque black. The grain shows through and it reads closer to graphite in daylight. The fiberglass interior is genuinely black.

The stove is 304 stainless with a corrugated, self-cleaning firebox and a secondary chamber that pulls heat back out of the smoke before it reaches the chimney — that recovery cuts wood consumption by roughly half against a conventional submerged stove. Water circulates by convection, drawing cooler water through a lower channel and returning it up top, so the tub equalizes without a pump. It brings 304 gallons from 40°F to 95°F in about two hours.

Steel-reinforced folding insulated cover and polished stainless chimney included. Arrives fully assembled.

Specifications

• Capacity: up to 6 people, 304 gallons
• Heat-up: 40°F to 95°F in 1.5–2 hours
• Exterior: 79" diameter x 37" H
• Interior: 71" diameter x 33" H
• Weight: 441 lbs empty
• Surround: thermo-spruce, charcoal stain
• Stove: 304 stainless, dual-chamber, self-cleaning
• No electrical connection required
• Includes insulated cover, steps, chimney and cap
• Ships assembled, palleted LTL