ThermoSpas ThermoSpas began manufacturing spas in 1983, and by 1993 quadrupled the size of its manufacturing facility. Its success in part was due to its unique approach to marketing and its approach toward customer service and innovation. Today, ThermoSpas is still expanding and has entered the international marketplace. They have renewed their commitment to customer service that is second to none in the industry. On top of all the state-of-the-art technology and innovation, ThermoSpas has made their products affordable and continues to work on ways to save you money.