MCZ Forma Wood 75 Dx - mod.2012 - Manual (Page 15)

13
4-FLUE
Technical Dept. - All rights reserved - Reproduction is prohibited
For stoves installed in studio flats, bedrooms and bathrooms (where allowed), it is mandatory to connect the combustion air outside. In
particular for sealed products the connection must be sealed in order not to compromise the overall sealed characteristic of the system.
DISTANCE (metres) The air inlet must be at a distance of:
1.5 m UNDER Windows, doors, smoke outlets, cavities, ....
1.5 m HORIZONTALLY Windows, doors, smoke outlets, cavities, ....
0.3 m ABOVE Windows, doors, smoke outlets, cavities, ....
1.5 m AWAY from smoke outlet
CONNECTION TO FLUE
The connection between the flue and the appliance must be via a smoke duct that conforms with EN 1856-2. To connect the fireplace to
the chimney flue or to a ceiling connection that is not coaxial to the unit’s smoke outlet, changes of direction must be made using open
bends no greater than 45° with respect to the vertical.
For stoves the connecting section to the flue must extend no more than 2 m horizontally, with a minimum slope of 3% and with a
maximum of 3 90° bends (accessible for inspection - do not count the T fitting at the unit outlet).
The diameter of the smoke duct must be equal to or greater than that of the appliance outlet. A possible increase/reduction of the cross-
section is only allowed when the flue is connected (in particular the reduction must be confirmed by an adequate system size calculation).
EXAMPLE OF HYDRO FIREPLACE FITTING
A. CERAMIC FIBRE INSULATION
B. SMOKE FITTING
C. CHIMNEY FLUE
D. HOOD GRILLE
TYPICAL DIAGRAM OF A CORRECTLY LAID CHIMNEY FLUE
WITH, AT THE FOOT OF THE EXTERNAL RISING SECTION, THE
POSITIONING OF A CHAMBER WITH A SEALED HATCH TO
COLLECT AND REMOVE THE SOLID MATERIALS PRODUCED
DURING COMBUSTION.