Hot tubs heated with wood chips, app-controlled hot tubs are said to be more environmentally friendly and cheap

While many people are unlikely to see wood-burning hot tubs as an overall “green” product, there are some products that may be the exception. This is the case with a new bathtub currently on sale in the European market. The bathtub, developed by researchers at the Kaunas Institute of Technology in Lithuania, heats water by burning wood chip sticks, in contrast to the more commonly used common wood. Not only are these chip sticks less expensive, but they also produce higher temperatures in less time and emit less smoke, ash and carbon, according to the university.

Hot tubs heated with wood chips, app-controlled hot tubs are said to be more environmentally friendly and cheap

In addition, wood chip sticks are said to be easier to handle than logs. The bathtub’s internal storage compartment sits in enough space. With the iOS/Android smartphone app, users can first indicate the desired water temperature. The bathtub responds by moving the right amount of wood chip sticks from the storage room into its combustion chamber. This means that users don’t have to reach out.

As the wood chip stick is subsequently burned, the built-in sensor measures the water temperature at the top and bottom of the barrel. Once the overall temperature reaches the target, the user is notified through the application. In order to maintain the temperature, the wood chip rod continues to be gradually moved into the combustion chamber.

Dr. Albertas Klovas of Kaunas University of Technology and Dr. R?ta Klovien, of Kaunas University of Technology, commercialized the technology through TimberIN, a spin-off company. The bathtub has been on the market for three months and is currently available in Germany, Denmark, France, Norway, the UNITED Kingdom and Ireland. Its heating system has now been modified for use in outdoor saunas.

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