| 摘要 |
The bottom end of a second flue section is fitted to the top end of a first flue section, a spacer element is fitted to the flue sections, and flue section partition devices are used to fix the spacer elements in a given orientation along the flue sections. A cladding pipe section (4a, 4b) is threaded over the second flue section and spacer element. The space between the flue and pipe sections is filled with a granular insulation material (3). Independent claims are also included for (a) the connection device, and (b) the spacer element used in this method. |
