The Conquest 400-1200 Series water heaters deliver up to 98 percent thermal efficiency, low NOx emissions (less than 20 parts per million) and seamless modulation. Built with AquaPLEX duplex stainless steel, they resist corrosion without linings or anode rods and include a 15-year tank and heat exchanger warranty. Its smart control system offers BAS integration via Modbus RTU and BACnet. It’s also DOE, Energy Star and ASHRAE 90.1 compliant.