Top quality boiler manufacturing since 1864
Johnston Boiler Company manufactures the worlds largest Scotch marine firetube boiler. Johnston pioneered the first water backed boiler over 100 years ago and the first packaged boiler over 65 years ago. Johnston boilers are built to last and carry the only 15-year warranty in the industry. In addition to the quality and dependability, the conservative design provides excellent fuel to steam efficiency resulting in the best life cycle costs in the industry.