The NOBLE floor mount fire tube combi-boiler brings to market a brand new floor mount boiler option for homeowners and multi-family facilities with models ranging from 110,000 to 199,000 Btu/h. Homeowners can be assured that their home’s domestic hot water demand will be met with ease and in a timely manner thanks to the NOBLE Floor Mount’s 10:1 turndown ratio and incredible thermal efficiency rate of 95%.