This furnace-mounted Wait humidifier provides an easy way to keep your home comfortable. Not only does it moisten dry air, it also reduces static electricity. It makes you feel more comfortable and helps to keep your furniture and floors in good shape. With the right level of humidity, your environment feels warmer. Then you can lower the temperature setting on your thermostat during the winter. This humidifier has a daily output capacity of 15 gallons. It features a 24 volt humidistat so you can set your desired humidity level. The water supply will automatically shut off once it reaches that level.