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Truncated Flue Design

Flue and Chimney Design Service

We do not advise installing a stove on an uninsulated chimney because of the problems caused by tar deposits. Here you will find some information about lining a truncated chimney

Please provide the following measurements for a truncated flue system:

A Hearth to Stove Flue Outlet (mm)
B Hearth to Register Plate (mm)
C Register Plate to Top of Masonry Stack (mm)
D Top of Masonry Stack to Roof Ridge (mm)
E Top of Masonry Stack to Flue penetration point of roof (mm)
F Roof Pitch (degrees)
G If needed, Offset (mm) - Please specify if this is in the masonry stack or the twin wall insulated section
H Flue diameter (mm)
More information on offsets can be found here

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