Abstract: A system for use with a fuel-burning water heater and a ventilation conduit is disclosed. The fuel-burning water heater is configured to burn fuel and generate gaseous exhaust and condensate from the burning of the fuel. The ventilation conduit is configured to remove the gaseous exhaust from the fuel-burning water heater. The system includes an input port configured to receive the gaseous exhaust and the condensate, a neutralizing material holder configured to house a condensate neutralizing material therein and to receive the condensate from the input port, a gas output port configured to provide the gaseous exhaust to the ventilation conduit, and a liquid output port configured to output condensate from the neutralizing material holder. The neutralizing material holder is disposed between the input port and the liquid output port.

Abstract: A burner mounting plate and a burner gasket are provided. A bottom portion of the burner mounting plate includes a groove configured to receive the burner gasket. The burner mounting plate also includes one or more mechanical stops protruding from the groove at various intervals. The burner gasket is shaped such that the burner gasket fits within the groove around the mechanical stops to prevent over compression of the burner gasket. The burner mounting plate also includes one or more protrusions corresponding to one or more apertures provided on the burner gasket. Further, an adhesive may be provided on the burner mounting plate and/or the burner gasket. This all serves to secure the burner gasket to the burner mounting plate to prevent the burner gasket from moving within the groove or falling out of the groove during installation.

Abstract: An assembly which comprises (a) a duct (22) for transmission of fluids, said duct having longitudinal axis, (b) at least one emitter (301) capable of exciting a beam of radiation (21) in the form of a cone having root angles ?ex and ?ey, which may be the same or different, into a cross section area of a duct to be analysed in a direction downstream of fluid flow in the duct at an angle ?e from the plane perpendicular to the longitudinal axis of the duct, the angle ?e being between 5° to 45°, (c) a detector (23, 304) sensitive to radiation radiated by scattering centres in the fluid over at least 1% of the cross sectional area of the duct, the direction of the central axis of the emitter cone being at an angle ? to the direction of the central axis of the detector cone, the detector cone having root angles ?dx and ?dy, which may be the same or different and the detector cone having angle ?d perpendicular to the longitudinal axis of the duct, the direction of the detector being downstream of fluid flow in the d