Fulton’s Vantage Fully Condensing Hydronic Boiler product line includes an extensive offering of models ranging in size from 2 million to 6 million Btu/hr. input. The traditional fire-tube design features diverse power burner configurations for ultra-high-efficiency hydronic heating applications. Vantage boilers feature high product mass and high-pressure vessel water volume that help with toleration of varying and sometimes unpredictable system conditions. Duplex alloy stainless steel is used in the condensing heat exchanger.Fulton. www.fulton.com. Circle 2