Boiler Flues Through Roofs

You see if you ve got a boiler in your attic and the flue goes through the roof there s a chance it could get bashed or pulled on accidentally when you re up there.

Boiler flues through roofs.

In this case the flue goes upwards and then out through the roof. The fault was only detected after the resident had contacted a gas safe engineer to inspect what they thought was a faulty boiler. With a horizontal flue the pipe travels straight through the wall behind the boiler. That s because the combustion byproducts are in a gaseous form so the gases can float up through the flue pipe and out of your roof.

For instance some flues can run up to 6 metres and others up to 12 metres. In cases where the boiler is not fitted to an external wall a vertical flue may be installed. Typically this applies when your boiler burns solid fuels. The majority of boiler flues exit out of a wall horizontally but if the flue from your boiler comes out at roof level then there are also some regulations that need to be considered.

Flashing kits flashing plates and weather collars in the range can be made of sheet metal plastic or composite materials and. In a modern fan assisted condensing boiler the boiler flue could just as easily be described as an air flue gas duct as it has two separate channels for gases and serves two functions. The engineer duly got in touch with hse. To expel the boiler s exhaust gases into the outside air where they are dispersed in the atmosphere.

In 2015 for example a contractor re roofing a flat roof above a flat in paignton devon was fined 2 000 plus legal costs for failing to reconnect a flue to the boiler. Boiler flue flashing products are typically used when installing a vertical flue kit through a flat or angled roof as it will provide a weather tight seal to the roof and stop any water leaking into the flue system. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.