I Horizontal Terminal Positioning; J Opening Of The Flue Pipe Below Eaves And Balconies - Vaillant ecoTEC pro 24 Installation And Maintenance Instructions Manual

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Appendix

Horizontal terminal positioning

BS 5440-1 recommends that fanned flue chimney terminals should be positioned as follows:

a) at least 2 m from an opening in the building directly opposite, and

b) so that the products of combustion are not directed to discharge directly across a boundary if the products are likely to

cause a nuisance to a neighbour or discharge over a walkway or patio.

For IE see current issue of IS 813.

For boilers covered within this manual.

1) Dimensions D, E, F and G:

These clearances may be reduced to 25 mm without affecting the performance of the boiler. In order to ensure that the con-

densate plume does not affect adjacent surfaces the terminal should be extended as shown below.

The flue pipe must

Adequately secured

protrude beyond any overhang

air/flue gas pipe

2) Dimension H:

This clearance may be reduced to 25 mm without affecting the performance of the boiler. However, in order to ensure that

the condensate plume does not affect adjacent surfaces a clearance of 300 mm is preferred.

For 1 and 2 above you can use a flue gas management kit to enable the termination point to be positioned and directed away

from the building fabric.

Opening of the flue pipe below eaves and balconies