* The combustion air enters the fire through the combustion air intake
damper on the front of the unit. This flow should be kept clear at all times;
* Additional air inlets may be needed if the stove is used in simultaneous
with other devices that require an air supply. The installer should evaluate
the situation according to the overall air flow requirements;
* Under normal operating conditions, the combustion gas flow should
create a draught of 12 Pa one metre above the throat of the flue. For
proper installation, at least 78.7 inches (2 metres) of metal flue tube with
the same diameter as the unit's smoke outlet should be fitted vertically
above the unit. After this section, sections of tubing with a maximum angle
of 45° may be used;
Figs. 2 and 3 illustrate correct and incorrect angles for installing a bend, if
required.
45º
45º
45º
45º
45º
Fig. 2
–
Correct
angle for bends
Fig.3
–
Incorrect
angle for bends
* A single-walled tube installed on the outside of a building results in the
condensation of water vapour in the combustion gases. Instead, use of a
double-walled, insulated tube is recommended;
* The flue outlet should allow for good air circulation and be placed at least
23.6 inches (60cm) above the top of any obstacle located within a distance
of 9.8 feet (3m);
* The ash grate should be installed with the narrow slots facing upwards;
* The same flue should not be used for more than one unit or open
fireplace. With shared chimneys, each flue should reach its outlet
independently and these should be at the same level to ensure that the air
circulation expels the gases;
* Brick chimneys should not be too wide, as the smoke will cool as it
disperses, reducing the draft. In case of draft problems, a revolving
chimney cowl can be installed;
2. Installation location requirements
* The unit should stand on a masonry hearth made of refractory bricks or
another type of non-combustible material;
* Combustible materials should not be installed close to the walls of the
stove;
* The floor on which the unit will stand must be able to support a
permanent load of 2.2 pounds (1kg)/cm ². If the load capacity of the floor is
insufficient, a solid plate can be used to distribute the load over an area
larger than the unit’s base;
* The building’s air intake grilles should not be obstructed;
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