A humidifier assembly (100, 100-1) includes a reservoir (120), an inlet structure (112, 112-1) leading into the reservoir and an outlet structure (114, 114-1) leading out of the reservoir, and a conduit element (130, 130-1) having a first end (131, 131-1), a body portion (132, 132-1), and a second end (133, 133-1). The first end is fluidly coupled to at least one of the inlet structure and the outlet structure The humidifier assembly additionally includes a float assembly (140, 140-1) coupled to the second end of the conduit element. The float assembly is structured to float on water held by the reservoir. The float assembly has a number of apertures (153, 153-1) structured to be in fluid communication with the outlet structure.