User manual

INSTALLATION AND USE MANUAL
Chapter 4
page 19
Technical service – Dimplex - all rights reserved - Reproduction prohibited
4.5. CONNECTION TO THE FLUE PIPE
The connection must be made with a great deal of care; in the event of
poor construction or assembly, it is extremely difficult to remedy
without damaging the installation. In addition, the connection is made
in a part of the stove where temperatures are very high, and for this
reason it is important to use materials that are capable of resisting heat
and also the acidity of the fumes produced by combustion.
Before beginning work, please note the following:
• The chimney flue should be vertical wherever possible to offer
least resistance for passage of flue gasses. Where a bend is
necessary, it must have a slope no greater than 45 degrees to
the vertical. This is to minimise the build up of soot and
condensates in the flue. It also keeps the release of smoke
from being slowed down.
• Connection of the stove to the main chimney shaft
should be made using clay flue pipe, Cast Iron, 316
grade stainless steel or vitreous enamelled steel,
nominal thickness 1.2mm.
• If metal connecting pipes are used, they must be
insulated with suitable material such as ceramic fibre
matting, to avoid deterioration of any nearby masonry
or plasterwork.
• It is prohibited to use flexible stainless steel or
aluminium hoses as they compromise the safety of the
connection and are subject to tears and gaps, causing
leakage of smoke.
• The components making up the connecting pipe must be
perfectly sealed using fire cement or other high temperature
sealant.
• The joint to the flue pipe must not be too long (to avoid
obstructions), nor too short (to avoid smoke leakage).
• Note that all flue sockets must face upward.
IMPORTANT!
Any increase in the section of the connecting pipe
must start immediately above the hood of the
fireplace and not along the flue pipe section
When installation is complete, the smoke connection
must be insulated with ceramic fibre matting or
material that is resistant up to at least 600°C.
Carry out any infilling necessary in order to prevent
soot or ashes from the chimney flue from settling
above the insert (fig. 7).
Do not install this appliance on a shared flue.
4.5.1. DIRECT CONNECTION TO FLUE PIPE
Engage the elements in the chimney flue, being careful not to exceed
the 45° inclination and to correctly carry out any infilling necessary in
order to prevent soot or ashes from the chimney flue from settling
above the insert (fig. 7). Make sure flue sections maintain safe distance
or are suitably insulated against contact with combustible materials.
Figure 7 – Direct connection to the flue pipe
Figure 6 - Example of fireplace stove
connection with a chamber and sealed door
for solid combustion product collection and
discharge at the foot of the external
ascending segment.
Flue connection
Ceramic fibre
insulation
Flue pipe
Hood grille
45° max