The chimney sandwich pipe got its name because of the device’s features - a pair of stainless steel pipes, external and internal, separated by a heat-insulating layer, which is used as a basalt non-combustible mineral wool. Typically, such chimneys are produced as part of systems that include straight sections, revisions, flanges, tees, plugs and more. Thanks to the presence of standard elements, the design and installation process is greatly simplified.
Chimney Sandwich Pipe
It has a number of advantages. The inner pipe warms up as quickly as possible, which completely eliminates the formation of condensate. This significantly reduces soot deposits as well as maintenance requirements. Good traction is provided due to the low level of heat loss. The outer pipe is protected from overheating, which allows to increase fire safety during the installation of smoke ducts indoors. If you accidentally touch the chimney, there is practically no risk of burns.
Chimney Sandwich Pipe
mounted in a certain way, which is worth writing more. Since this design is assembled from individual elements that have connecting nodes and standard sizes, they are mounted quickly enough and without any special problems. Naturally, this is provided that the work is entrusted to professional specialists who possess not only sufficient qualifications, but also experience. However, there are a number of rules, as well as a specific procedure that should be followed.
A chimney sandwich pipe begins to be mounted from below, from a heating device, which can be a boiler, stove, fireplace and other devices. When using an external smoke channel, a horizontal section is first installed before leaving the room. After that, you can mount a vertical, the height of which should not be less than five meters. The lower part of the vertical section is equipped with a condensate collector designed to remove moisture, including the one that can get in with
precipitation. If the
chimney for the stove or fireplace has several elbows, then at the bottom of each vertical section it is necessary to mount a condensate collector. The length of horizontal fragments should not exceed a meter.
The chimney pipe consists of separate segments that are joined together so that the next element enters the socket of the previous one. The outer is worn on the previous one. Such a connection method allows condensate to drain into the lower part of the chimney, which eliminates leakage to the insulation and a decrease in its heat-insulating properties. Segments must be installed to a depth of at least half the diameter. Such a requirement is prescribed in the fire safety regulations. A sandwich pipe for a chimney, the price of which depends on its parameters, is attached to the wall with the help of special brackets-fasteners installed every two meters, at least. The chimney must not come into contact with utilities.