Rules For Placement; Connection Of The Pellet Stove To The Chimney - Viadrus AGURO Manual Del Usuario

4.3

Rules for placement

The consumer has to be put up on a firm basement with a corresponding capacity, preferably on a concrete or other inflammable plate. If the
existing set doesn't comply with this necessary condition, it is necessary to make sufficient measures to satisfy this requirement.
In case of installation to the floor from a combustible material, it is necessary to place the consumer on an insulating pad from an inflammable
material, which overlapped the ground plan of the consumer by 800 mm in the direction of radiation, 400 mm from remaining sides.
It is not allowed to put subjects from combustible materials on the consumer and on the distance less than the safety distance (see the following
table). In case of unknown stage of combustibility it is necessary to go from the distance for the stage E (F).
Tab. №. 2
Grade of reaction to fire
Grade of reaction to fire
Granite, sandstone, concrete, bricks, ceramic tiles, mortars, fireproof
A1 – incombustible
plasters,...
acumin, izumin, heraklit, lignos, boards and basalt felt, fibreglass
A2 – hardly combustible
boards,...
Beech and oak wood, hobrex boards, plywood, werzalit, umakart,
B – heavily combustible
sirkolit,...
C (D) – moderately Pinewood, larch, whitewood, chipboard and cork boards, rubber
combustible flooring,...
Asphaltboard,
E (F) – lightly combustible
polystyrene, polyethylene, PVC,...
As the minimal distance from combustible or non-combustible
materials, you can follow the following values:
Combustible materials:
A > 800 mm
B > 100 mm
Non-combustible materials:
A > 400 mm
B > 50 mm
4.4

Connection of the pellet stove to the chimney

Before commissioning the pellet stove, check and testing of the flue channel has to be performed even before closing
the flue channel by the sheathing of the heat-air chamber. These activities may be only performed by a qualified
person, for example, a chimney-sweeper company. The result of checking has to be recorded into the revision report
of the flue channel.
With regard to low demand factor of installation of the pellet stove, a customer may install the stove by
himself/herself. However we recommend ordering this installation from a proper trained specialized building company
or a chimney-sweeper or a stove-fitter company.
Revision of the flue channels has to be carried out:
•
before commissioning the flue channel
•
after each building modification of the chimney
•
before a change or new installation of the consumer.
Revision has to be performed by a qualified person in the sphere of chimneys – by engineering inspector of
chimneys.
•
Flue exhausting is ensured by means of a flue exhauster, which is a part of the pellet stove.
•
The stove has to be connected to a separate chimney. It is not allowed to draw off flue gasses from other equipment to this chimney.
•
The chimney can be in classical design (a brickwork), or from stainless steel or from ceramics.
•
Usual pipes or springy steel pipes for flue gas ducting can be used for connection to the chimney.
•
All parts of the flue gas ducting up to the entrance to the chimney have to be gas-tight from the reason of possible occurrence of
overpressure in the output of flue gases.
•
The pipe of the flue gas ducting mustn't intervene to a free cross-section of the chimney.
•
The stove complies with requirements for connection to chimneys designed for temperature of flue gases of 350 °C.
•
The minimum required chimney draught is 10 Pa. Draught is influenced both by the length of the chimney, and by the surface of the
chimney, and by quality of its sealing. The minimum recommended length of the chimney is 3,5 m from the place of falling-in the flue gas
ducting to the chimney and a suitable minimum cross-section is 150 x 150 cm.
•
The outer diameter of the connecting mouthpiece for smoke gas is 80 x 1,5 mm.
•
The flue gas ducting has to be made from tightened steel or stainless pipes. Two 90° elbow-pieces can be used.
•
In case of placement of the flue gas ducting on the outer side of the building, it has to be equipped with thermal insulation.
•
Flue gas ducts with sharp bends and a horizontal routing decrease chimney draught. The maximum horizontal piece of the flue gas
ducting is 2 m, under condition that the length of the flue gas ducting is at least 5 m.
Examples of building materials and products included in the
reaction of fire (extract from EN 13501-1+A1)
fibreboards, cellulose materials, polyurethane,
Fig. №. 4
83
Minimum distance (mm)
Direction Other directions
perpendicular to
the radiating wall
- -
800 400
800 400
800 400
1600 800
GB
GB