Gas Boiler Flue Through Conservatory Roof

Our gas boiler flue on the kitchen wall needs to be extended on the outside to go up through a planned conservatory roof.

Gas boiler flue through conservatory roof.

Definition of a boiler flue. If you have a gas boiler behind your fire. This is normal but the most important thing to remember here is that it won t seal if you do this while it s raining especially on a flat roof. The harmful gases are produced when the boiler is burning fuel which means that the gas exiting through the flue is hot so this needs to be taken into account when positioning the flue.

Gas safe eng tells me the parts are available and can be done fairly straightforward by working in sync with the conservatory installer. We want to build a lean to style timber framed porch with a corrugated plastic roof along that wall creating light unenclosed porch veranda outside the kitchen windows but the vent flue will be under it maybe about 1ft from where the apex of the lean to meets the wall. In this case the flue goes upwards and then out through the roof. Keeping it away from any plastic gutters as they could end up melting is one of the considerations to be made here.

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. Most installers or roofing contractors will use a slate piece or a metal or lead piece that fits onto a flat or pitched roof with a gromit where the flue pipe goes through. 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 sometimes called an insulated flue a twin wall flue is a flue pipe surrounded by a layer of insulation surrounded by another pipe. A vertical flue looks similar to a very small chimney and can be seen spouting out steam when the heating is on.