TrueSTEAM 9-gallon. humidifier with TrueIAQ digital IAQ control. Draws 10-amps.. . Application. flexibility Mount directly to the duct or remotely up to 20 feet away into. tight-fitting or unconditioned air spaces. . Installs in minutes - Limited duct cutting and bracket-mount design. takes less than 5 minutes to complete. . Easy maintenance Self-regulates cleaning cycles throughout the year.. Annual maintenance requires no tools to access and clean, saving time and money. on annual contractor service calls. In-line water filter for scale and sediment. also provided. . 5-year warranty