“Condensing boilers do not last long. How long will yours last?”
U.S. Boiler uses the most reliable and popular stainless steel HXs in the world and name-brand major components. U.S. Boiler estimates that its boilers will longer than its various warranties if they are properly maintained.
USB sells and supports both. FireTube – Has more water volume that heats slower; Lower pressure drop requires less pump. WaterTube- Heats fast for combis; higher pressure drop requires a larger pump, but may clear out scale; Easy preventative maintenance.