Flue; Connecting Piece, Pellet Stove - Chimney; Combustion Air; Intake From External Source (Preferred) - calimax PWS 0601-A Operating Manual

5.2 Flue

The flue system is to configured according to EN 13384-1 . Before starting the pellet stove, a positive
conformance report regarding the chimney must have been obtained.
Flue draught limitation:
If there is a strong flue draft (>30 Pa), a suitable auxiliary air facility is to be fitted. The local regulations
must be followed!
Multiple-stove arrangements with one chimney:
Pellet stoves PWS 0601-A or PWS 1201-A with max3 controls and integral air sensor, are suitable for
multiple-stove arrangements with one chimney.
Prerequisites:
•
The chimney is to be dimensioned according to EN 13384-1 and it must be ensured that there is a
negative pressure (greater than 1Pa).
•
There is a positive report on the chimney issued by the relevant authority.
•
Regional regulations must always be followed!
•
The operator is to ensure that the stoves do not operate simultaneously.
•
That as far as the construction of the pellet stoves are concerned, it is not a just burner, but an
automatically loaded stove with a day feed bin for burning solid biomass fuel (pellets) and with a flue-
gas fan. This flue-gas fan conveys the flue gases into the chimney.
•
That no positive pressure can be caused in the connecting piece or in the chimney.
Danger! Incorrect operation can result in emission of flue gases (carbon monoxide poisoning).

5.3 Connecting piece, pellet stove - chimney

The connecting piece between pellet stove and entry into the chimney, is to be designed so that the flue
gases enter the chimney with negligible loss of pressure or cooling (see DIN 18160). Inspection and cleaning
must be possible. An external sleeve is sufficient to ensure tightness of the connecting piece.

5.4 Combustion air

5.4.1

Intake from external source (preferred)

It is highly recommended that combustion air be taken in from an external source. By this means you ensure
that operation of the stove is independent of the ambient air, reduce energy consumption and avoid possible
dirtying of the air sensor. Where room ventilation or fume extractor is fitted, air intake from an external
source is mandatory.
•
Maximum tube lengths and diameters are to be taken from the table.
•
The end of the air extraction pipe needs to be located outside or in a well-ventilated room inside the
building.
•
The air pipe must be designed so that no formation of condensation is possible and that no water can
enter the stove. See DIN V 18160 standard.
•
The internal surface of the air pipe must be smooth e.g. Geberit tubing
•
A filter is to be attached across the entrance of the air intake (mesh size 1 mm) to prevent small animals
or foreign matter entering and impeding the intake of air.
•
The air-intake pipe is to incorporate a 90° downward elbow where it enters the building, so that gusts of
wind do not affect the air supply.
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