MCZ Club Guide d'installation télécharger pdf (Page 14)

60°

45°

4-FLUE

ROOF AT 60° ROOF AT 45°

DIMENSIONING

The drop in pressure (draft) of a ue depends on its height. Check the drop in pressure with the values indicated in the technical

characteristics. The minimum height of the chimney is 3.5 meters.

The interior cross-section of the ue can be circular (best variation), square or rectangular (the ratio between the interior sides must be

≤1.5) with the sides joined with a minimum radius of 20 mm. The dimension of the cross-section must be minimum Ø100mm.

The cross-sections/lengths of the chimneys shown in the technical data tables are indications for correct installation. Any alternative

congurations must be correctly dimensioned in accordance with the general method of calculation of UNI EN13384-1 or other proven

eciency methods.

Below is a list of some ues available on the market:

Steel chimney AISI 316 with

double chamber insulated with

ceramic bre or equivalent

resistant up to 400°C.

Refractory chimney with

double insulated chamber and

external lightweight concrete

cladding with cellular material

such as clay.

Traditional square-section clay

chimney with insulating empty

inserts.

Avoid products with an internal

rectangular section where the

larger side is 1.5 times the

smaller side (e.g. 20x40 or

15x30).

EXCELLENT GOOD POOR VERY POOR

A = MIN. 2.60 metres

B = DISTANCE > 1.20 metres

C = DISTANCE < 1.20 metres

D = 0.50 metres ABOVE HIGHEST POINT

E = 2.10 metres

F = REFLUX ZONE

A = MIN. 2.00 metres

B = DISTANCE > 1.30 metres

C = DISTANCE < 1.30 metres

D = 0.50 metres ABOVE HIGHEST POINT

E = 1.50 metres

F = REFLUX ZONE

FIGURE 5 FIGURE 6

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 75 76

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MCZ Club Guide d'installation Page 14

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