There are few things more luxuriously relaxing than a spa-quality hot tub. Design studio Koto has added a Scandinavian-inspired spa to its lineup of cabins. Outfitted in a heavy-duty granite-treated exterior in matte black, the Elements Wood-Fired Hot Tub ready for at-home relaxation. Combining modern design sensibilities with classic wood-paneling, this Koto hot tub celebrates the timeless art of rejuvenation. All of the stainless steel feature including the chimney, boiler, and buttons sport a matte black finish and the hot tub features an ultra quiet hydro massage system and warm LED safety light. Load up the boiler with fresh firewood and enjoy pure bliss. The Koto Elements Wood-Fired Hot Tub is available now for $6,250.