U.S. Boiler Company Expands Citadel Boiler Line
U.S. Boiler Company has expanded and improved its line of Citadel condensing boilers and volume water heaters. The Citadel is now available in seven capacities from 399 to 1,500 MBH, all with 10:1 turndown. AHRI certified and rated up to 97% thermal efficiency (98% for water heater), it is available in natural gas and propane configurations.
Citadel boilers conserve mechanical room space and simplify installation. They can be stacked two-high without the need for accessory racking systems. Zero side and top clearance optimizes heating capacity per square foot of mechanical room space.
The boiler is compatible with U.S. Boiler Company’s USB-Connect mobile app. The app expedites and streamlines installation, service and troubleshooting of all the company’s condensing boiler models. Because the Citadel is designed for the widest variety of applications, it’s sold complete out of the box. A standard, reinforced 3-in-1 vent connector facilitates the use of polypropylene, CPVC or stainless steel venting. Modbus communication comes standard. All models are suitable for indoor/outdoor installations.
