Aino - a unique sauna experience. Sauna has always been the place for relaxing and part of a healthy lifestyle for Finns. Strength from the tradition. Sauna helps you to recover from everyday routines. Aino Heater brings you the spa atmosphere to your home. Aino Heater has a unique design. You can trust the quality of the genuine and original Aino Sauna Heater. Aino Plus Sauna Oy is a Finnish family owned company. Aino Plus Sauna has been a part of Farmtools that is founded in 1980 and manufactures sauna heater products. The design of the Aino Heater is patented and the Aino stove is a registered trademark.