Flue Connection; General Notes - NESTOR MARTIN H15 Instructions D'utilisation

3.4 Flue Connection

3.4.1 General notes

This appliance may be installed with a roof terminal (C31) or a wall terminal (C11).
This appliance may only be used with Balanced Flue (otherwise known as Concentric Flue) parts as specified by
Nestor Martin. The Nestor Martin specified flue parts have been approved with the appliance. If the appliance is
installed on non- Nestor Martin approved parts, Nestor Martin cannot guarantee or accept and responsibility for
the proper and safe working of the appliance.
The flue system must be constructed from the appliance upwards, with all joints being fully locked and sealed
using the Nestor Martin specified parts.
The certified pipes to use are:
- Vertical configuration (roof) :
Pipes US 100/150 mm Metaloterm B.V. with adaptator USAK 2 10 and with the vertical roof
terminal USDVC2 10
- Horizontal configuration (wall) with vertical pipes starting from the appliance :
Pipes US 100/150 mm Metaloterm B.V. with adaptator USAK 2 10 and with the horizontal wall
terminal USDHC2 10
- Horizontal configuration (wall) starting directly from the appliance with horizontal connections :
pipes US 100/150 mm Metaloterm B.V. with adaptator USAK 2 10 and with USDSC 10 (terminal
SNORKEL)
3.4.2 Timber Frame Construction
Whilst it is possible to install room-sealed appliances in timber frame properties, great care needs to be taken to
ensure that the flue assembly does not interfere with the weather proofing qualities of any outer wall which it may
penetrate. Before attempting this work, further details need to be referenced, (e.g. "Gas Installations in Timber
Frame Buildings" from the Gas Safe installer series in the UK).
3.4.3 Carport or Building Extension
Where a flue terminal is sited within a carport or building extension, it should have at least two completely open
and unobstructed sides. The distance between the lowest part of the roof and the top of the terminal should be at
least 600mm.
Note: A covered passageway should not be treated as a carport. Flues should not be sited in a covered
passageway between properties.
3.4.4 Basements, Lightwells and Retaining walls
Flue terminals should not be sited within the confines of a basement area, light well or external space formed by
a retaining wall, unless steps are taken to ensure the products of combustion can disperse safely at all times. It
may be possible to install this Balanced Flue system in such a location provided that it is not sited lower than 1m
from the top level of that area to allow combustion products to disperse safely.
Flue terminals should be sited to ensure total clearance of the combustion products in accordance with the
included information.
When the products of combustion are discharged, they should not cause a nuisance to adjoining or adjacent
properties and they should be positioned so that damage cannot occur to other parts of the building. If the outer
wall surface is constructed of combustible material, a non-combustible plate should be fitted behind the terminal
projecting 25mm beyond the external edges of the terminal.
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Installation instructions