A custom-made foam applicator is placed at the bottom of the flue and attached to a winch on top of the chimney.
You can produce all the flexible ducts required for a chimney renovation yourself with HAFLEX duct winding machines in your warehouse, in your own workshop or even in a vehicle on site! Flexible ducts made with HAFLEX duct winding machines lead the way in terms of technology and quality and set the standard in markets worldwide. How Heat Shield Works: We restore your chimney’s clay flue by resurfacing the interior. On site, the flexible ducts can be simply connected using special connectors or easily combined with other fixed fittings. When a clay chimney flue is installed in a brick chimney there must be a minimum of a 1/2' clearance from the clay to the interior brick chimney. A chimney is commonly constructed from bricks, blocks or stones. Existing offsets in the masonry chimney or even slanted ducts do not pose a problem when renovating a chimney with flexible ducting, as the ducts adapt flexibly to the structural conditions on site.įlexible flue ducts manufactured with HAFLEX duct winding machines are typically suitable for all fuel types (oil, gas and solid fuels), resistant to moisture, extremely corrosion-resistant and soot fire-resistant. A chimney is the actual structure that houses the flue which prevents heat transfer from the flue to nearby combustible material.
They are extremely elastic and pliable, which makes them very flexible. in the event of chimney sooting) or when it is necessary to reduce the cross-section of existing chimneys. Flexible flue ducts are used in flue and chimney technology, particularly for chimney renovations (e.g.