The HE420A,B and HE460A,B Steam Power Humidifiers use a thermal fan interlock control to provide humidification for the whole house. The steam power humidifier is designed to work with high efficiency furnaces, heat pumps and set back thermostats. Literature Owner's Manual Features Humidifies the air without a call for heat from the thermostat so relative humidity fluctuates less, optimizing comfort. Ideal for homes with extensive woodwork, hardwood floors, antiques, oil paintings, leather furniture, pianos, and fine collectibles. Capable of humidifying a large area.
Compact size allows easy installation.
Minimal amount of water needed for energy efficient operation. Automatic Flushing Timer reduces frequency of maintenance in a hard water installation.