Instructions for installation and use. Reproduction prohibited. 07/ 2010 version 2.0 TAM
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2.4 – Combustion air supply
2.4.1 General points
Operation of a fireplace equipped with an insert requires a supply of
air over and above that necessary to renewal of regulation air in the
premises. The required cross-section may be obtained by one or more
combustion air inlets. The combustion air inlet must be closable (a
closable grille or closing damper).
2.4.2 Dimensioning
The combustion air inlet must have a cross-section of at least
200 cm
2
, unless stated otherwise by the manufacturer. In addition, for
inserts operating door open, it must also have a minimum cross-
section greater than or equal to a quarter of the inside cross-section of
the flue.
2.4.3 Air supply intake
The air supply intake must be positioned:
- either directly outside, in which case it is strongly advised that the
fresh air supply intake is situated on a facade exposed to prevailing
winds.
- or in a spot ventilated from the outside or in a ventilated crawlspace,
in which case it should be ascertained that the area through which air
passes is not polluted (by exhaust gas, for instance). It must be
protected by a grille and easily disassemblable to allow for regular
cleaning. Grille mesh should be greater than 3 mm.
2.4.4 Air inlet flow
If the combustion air supply crosses through an outside wall with a
lining, the crossing must be airtight.
2.4.5 Discharge end of combustion air inlet
The discharge end of the combustion air inlet must be positioned either
directly in the fireplace or near to it. It may be equipped with a closable grille
when it discharges directly into the room, in order to minimise heat loss
when the appliance is not actually in operation.
3) Implementation
3.1 – Setting up the worksite
Set out the various fireplace components near the area in which it is to be
installed to identify them them using the list supplied with the appliance
(technical plan).
At the same time, identify (if necessary) the best-looking sides, to be sure
they will be the ones visible.
3.2 – Laying out the underbase
When the underbase is meant to spread the weight of the fireplace on the
floor, it must be designed and created with this in mind.
Before starting work, it is absolutely essential to consult the plan specific to
the model to be installed, which is included in the fireplace packaging. Plot
out the underbase layout on the floor, as required by the flue and the
surroundings. First, dry set the underbase components to check on layout
and
note
possible
drilling
and
shafting
points.
You must ensure that you comply with all necessary arrangements for the
combustion air inlet.
