Sauna Heart Humidifier
Sauna Heart Humidifier. Humidifier tube (9 3/4"x 3 3/4" diam.) to put in heater adds constant humidity to Sauna room. Stainless steel tube is inserted between heater elements and filled with water to create constant humidity for about a 25 minute period. It creates softer, more humid, and more enjoyable air. Not for use in AV or JM type heaters.