NCB-190/060H

Smart controls LCD display, quick dial wheel & Setup Wizard Advanced stainless steel dual heat exchangers 15:1 DHW and up to 5.5:1 heating TDR Field convertible gas system (NG/LP) up to 10,100 ft. Capable of cascading up to 15 NPE water heaters Capable of common venting up to 7 NPE water heaters Built-in 3 zone pumps and 3 zone valves powered connections 2” venting up to 65' and 3” venting up to 150'