bsi138Page 1 These instructions must be affixed on or adjacent to the boiler Models: WARNING: Improper instal- lation, adjustment, alteration, BSI207 BSI069 • • service or maintenanceBermuda Gas Fired Cast Iron Steam Boiler BSI series, Sea Level. BtuH Input: 138,000; Gas Type: NG; Sections: 5; AFUE: 82.0%; Flue Diam.: 6; Width: 19-14; Heht