Johnson Controls. The York Affinity Large Bypass WaterSaver humidifier’s patented water delivery system includes a small float chamber, electronic water level sensors, and a wicking water panel that helps save water, the company says. It is suitable for a variety of applications, including homes with septic systems. In addition to providing water and energy savings, the humidifier ensures improved indoor air quality and comfort, according to the firm. 877.453.9675. www.yorkhvacdealer.com.