Baxi Ecogen 24/1.0 Installation & Servicing Instructions Manual page 29

Fig. 21b
Fig. 21c & Fig. 21d
page 29
8.12 Determining Permissible Lengths
In the graph the solid line diagonal represents the relationship between the concentric flue assembly (and any extensions) and the 60Ø exhaust (and any extensions
or additional bends).
Example 1 ­ Not Permissible
If, for instance, a concentric length of 4 metres was required and the 60Ø exhaust needed to be 3 metres the graph shows that this combination would NOT be permissible as the
intersection point would be above the solid diagonal line.
Example 2 ­ Flue Lengths OK