Free standing flue systems are commonly fitted to houses without chimneys where a wood burning or multi fuel stove is to be installed. This pipe comes in sions and is quite quick to put together. The twin wall insulated sections (required for exterior use and passing through or near combustable materials) are compression joints. That means that they are dry joints and require no fire cement or similar to seal. In the brand we supply, standard locking bands are supplied with the pipes. Reinforced locking bands are available for a small extra charge where additional support is required.
The picture above shows the fitting of a Poujoulat TI twin wall insulated rafter support bracket. This can be fitted in several ways - either fixed to the roofing material or roof trusses. It can be adjusted to suit to suit various roof angles.
This picture shows the Poujoulat rafter support bracket from the side. You can see how it adjusts by sliding through the arc and tightens using wing nuts. After aligning the system, we like to remove the wing nuts and change to M6 nyloc nuts which guarantees that the system aliggnt can never move.
Lower down, a Poujoulat joist support bracket can be seen - looking through to a ventilated firestop on the other side of the ceiling.
Here you can see from the lower end of the flue system - where vitreous pipe connects to a Poujoulat twin wall insulated flue pipe section using an appliance connector. These are also available as increasing appliance connectors - ie from 5" vitreous pipe connecting to 6" twin wall insulated flue pipe systems.
A Reinforced locking band for the Poujoulat twin wall insulated pipe has been fitted here at the last internal twin wall to twin wall joint. In conjunction with the rafter support bracket, 3 metres of pipe can be supported above this joint without the need for additional support such as guy wires.
Close up view of Poujoulat twin wall TI system joist support and ventilated fire stop plate shown in the loft space of a bungalow. Care should be taken to make sure that no joints fall in areas which are not accessible - such as in joist spaces or between roofing materials
Sarah-Jane Nash - http://www.naturalheating.co.uk/
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