Designed for outdoor use, this hot tub is a firewood stove and set. Naturally, no electricity or boiler is required and you can enjoy a hot bath within two hours. It may take a while, but I think we should be on fire for a while. Made from environmentally friendly stainless steel and British Kebony wood, it is equipped with Finland’s Kirami water heater. Up to four people can use it at the same time, providing a 25-year warranty. Is that so? The price is $ 20,000.