Tylo high end sauna heater for sauna rooms 500 to 700 sq. ft. Built in water tray protects elements from water damage when pouring water over the rock. Contains deep stacked rock mass in center for steam generation. Insulated exterior will not burn the skin if accidentally touched. Come with remote mount low voltage control keypad to mount outside the sauna room. Great feedback from Spa, gym, and commercial owners on this high end heater.