ApplicationNo. 752550 filed on 12/20/1976
US Classes:122/367.3, Corrugated and finned heat transmitters122/360, Closures and couplings165/175Inlet and outlet header means
ExaminersPrimary: Sprague, Kenneth W.
Attorney, Agent or Firm
International ClassesF22B 037/10
Foreign Application Priority Data1975-12-22 NL
AbstractA gas-fired boiler having a bed of copper finned tubes arranged between the combustion space and the flue. The ends of the tubes extend through a tube plate into a water header. The connection is sealed with a compressed gasket. For protection of the gasket, the openings in each tube plate and header for allowing the passage of tube end are arranged asymmetrically in the direction of the burner bed.