Fulton’s VSRT steam boiler, which already boasts ultra-low NOx emissions and high efficiencies, now comes with a 10-year unparalleled warranty on the pressure vessel, double that of the industry standard. Commenting, Fulton’s Leigh Bryan says: “The VSRT’s unique spiral-rib design creates a longer-lasting boiler that we believe will beat the competition in every category of durability, so we have decided to include a 10-year warranty on the pressure vessel as standard.” The patented spiral-rib heat exchanger design not only improves boiler efficiency but, with virtually zero thermal stress and a thick-walled construction featuring vertical tubeless design architecture, the VSRT is one of the most durable steam boilers available.