The Armstrong Gas-Fired Humidifier’s (GFH) innovative Ionic Bed™ Technology reduces operating costs, labor and downtime associated with humidifier cleaning. The GFH Series uses natural gas or propane for economical operation. The GFH is designed for use with tap, softened or RO/DI quality water, capacities up to 700 lb/hr, Modbus and BACnet communication, and integrated touchscreen with enhanced operational data and diagnostics to support faster more accurate service.