www.pmmag.com/articles/88620-aerco-self-descaling-water-heater
AERCO Self-Descaling Water Heater
March 1, 2004
The WaterWizard commercial water heater from AERCO offers +/- 4 degrees F temperature control, longevity and low maintenance. A self-descaling helical heat exchanger with dedicated sub-cooling coil delivers 93 percent to 99 percent efficiency. Condensate temperatures below 160 degrees F preserve condensate return pump life.
Circle 13