Two new steam humidifiers, Model 1150 and Model 1160, are designed for the light commercial market. Each unit includes a steam humidifier control, airflow proving switch, steam distribution tube, and 10 feet of flexible steam hose. According to the company, these humidifiers are compatible with both standard tap and softened water. Model 1150 is a 12-pound-per-hour unit that features on-off control. Model 1160 is a 24-pound-per-hour unit featuring a modulating output that regulates the operation of the humidifier based on the humidity needs of the building, says the manufacturer.

Aprilaire, P.O. Box 1467, Madison, WI 53701-1467; 800-334-6011;

eProduct #181