The ComfortBreeze ™ evaporative humidifier line combines advanced microprocessor control with conventional evaporative technology. The units are available with optional patent-pending ComfortSmart™ technology to minimize water consumption while maintaining a comfortable humidity in the home. Water-saving models come equipped with an electronic humidistat and outdoor temperature reset to protect the home from condensation problems that can arise when the outdoor air temperatures fall. The ComfortSmart-equipped models feature a relay that can power the HVAC blower, so that a call for heat is not required for the unit to deliver humidification. Fan-powered models are compatible with any type of furnace system — single-stage, variable-speed, and modulating. An exterior-mounted LED displays fault codes and provides visual indication when evaporative pad replacement is necessary.