Flue, and a boiler including such a flue

A flue, comprising a flue pipe for carrying flue gas, the flue pipe having an elongate divider member extending along the flue pipe to partition the pipe into a gas carrying region and a liquid collection region shielded from the gas flow in the gas carrying region, and wherein apertures are provided in the divider member and/or between the divider member and the flue pipe to allow moisture to enter the elongate collection region.

A flue, comprising a flue pipe for carrying flue gas, and an elongate liquid collector within the flue pipe and extending along the flue pipe, and adapted to collect condensation from the interior of the flue pipe and to shield the condensation from the flue gas, and a liquid guide disposed within the flue pipe for directing droplets of moisture to flow towards the liquid collector in which the liquid guide is a helical guide that extends along the interior of the flue pipe, and in which the helical guide is a helical depression within an interior wall of the flue.