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TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
TECHNICAL PASSPORT. INSTALLATION and OPERATION MANUAL
7. SETUP OF THE HEATING BOILER
7.1. Connecting the boiler to a chimney
Boiler-to-chimney
connection
must
always comply with the existing standards
and rules. The chimney must provide
sufficient draught for evacuation of the
smoke under any conditions.
The proper functioning of the chimney
requires adequate sizing of the chimney
itself since the draught it produces affects
combustion, boiler’s output and life span.
The draught created by the chimney
is in functional relation to its cross-
section, height and the roughness of its
interior walls. No other appliance may
be connected to the chimney serving the
boiler. Chimney diameter must not be
smaller than the flue outlet of the boiler.
Flue outlet must be connected to the
chimney opening. In terms of mechanical
properties, the flue outlet must be sturdy
and properly sealed (to avoid gas leak)
and allow for easy access for cleaning
on the inside. The inner section of the
flue outlet must not be greater than the
effective section of the chimney and must
not narrow. Avoid using elbow joints.
The chimney cleaning opening has to be
in its lowest part. The chimney’s wall has
to be three plied where the medium layer
is from mineral wool. The thickness of the
insulation is not less than 30 mm when
the chimney is setting up inside the house
and the thickness is 50 mm, when the
setting up is outside.
Please entrust choosing a chimney and
its installation by a qualified professional.
The required distance between the boiler
and the chimney is 300-600 mm. Draught
regulator
(1)
must be installed at least 600
mm from the joint (connection).
45
o
Boiler size and chimney parameters
T
able 4. Recommended minimum sizes and
chimney draft
Boiler
output
Chimney
diameter, mm
Chimney
draft, Pа
15 kW
Ø 130
10-20
25 kW
Ø 130
10-20
40 kW
Ø 150
10-20
i
Data in the tables are for indicative
purposes.
Draught depends on the diameter,
height, uneven sections along the
chimney surface and differences
in temperature of combustion
products and outside air. We
recommend that you use chimney
fitted with flue terminal. Heating
specialist must calculate the
precise sizing of the chimney
.
