Wooden hot tubs are making a comeback in popularity because of better designs and modern features, such as seating arrangements, jet systems, filtration systems, and electric or gas heaters. The wood used, such as cedar, teak, oak or redwood, also has a pleasant, natural scent that cannot be duplicated by hot tubs made of plastic and other materials. Read more - https://rhottubs.wordpress.com/2020/05/12/using-wooden-hot-tubs-plans-to-construct-your-own/