Boiler Flue Through Conservatory Roof

When a non condensing boiler is replaced with a condensing boiler the different flue arrangements could mean that the current flue has to be relocated.

Boiler flue through conservatory roof.

The good news is that it is safe to pass a flue pipe through a conservatory roof as long as you follow these steps use a twin wall flue. As i read it. However the boiler flue manufacturer s instructions are final so if there s nothing specific in the vertical flue kit installation manual then call. You may need an experienced roofing contractor.

The flue won t get hot since even the inside compartment is only designed to take warm and wet gas and is itself made of plastic so there should be no problem with going through the polycarb roof. If the flue terminal is more than 2 3m away from the taller main house then the flue does not need to rise above the main roof. However to comply with the approved document j of the building regulations the flue still needs to rise a total height of at least 4 5m unless the appliance manufacturer specifies less. It will not got as hot as a single wall flue and is therefore safe for.

Sometimes called an insulated flue a twin wall flue is a flue pipe surrounded by a layer of insulation surrounded by another pipe. Gas safe eng tells me the parts are available and can be done fairly straightforward by working in sync with the conservatory installer. Our gas boiler flue on the kitchen wall needs to be extended on the outside to go up through a planned conservatory roof. As to how it can be directed oot the roof the installation instructions for the make and model of boiler will show all the flue pipe permutations and almost certainly this will include examples to show an upwards diverting elbow with a suitable flue terminal as if the flue were coming through a normal roof.

Condensing boilers are highly efficient units that have 2 internal heat exchangers meaning that less heat is lost through the flue.