With Internal Water Tube Patents (Class 122/166.1)
Loop-type tube (Class 122/166.2)
Central magazine (Class 122/168)
Coil (Class 122/169)
Contracted inlet (Class 122/171)
Header (Class 122/172)
Horizontal spur (Class 122/173)
Internal fire tube (Class 122/174)
Offset water firebox (Class 122/175)
Transverse (Class 122/176)
Vertical aligned fire tube (Class 122/178)
Vertical spur (Class 122/181)
Fluid fuel (Class 122/167)
  • Flue, and a Boiler Including Such a Flue
    Publication number: 20090272340
    Abstract: A flue offering reduced pluming is provided, the flue comprising a flue pipe for carrying flue gas and a liquid collector adapted to collect condensation from the interior of the flue pipe and to shield it from the flue gas.
    Type: Application
    Filed: August 11, 2006
    Publication date: November 5, 2009
    Applicant: Zenex Technologies Limited
    Inventor: Christopher C. Farrell