* 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.
5.2. Installation Location Requirements
* The unit should stand on a masonry hearth made of refractory bricks or another type
of non-combustible material;
* It is recommended for insert fires to be insulated with insulating material with a
thickness of 1,57 inches (40 mm) and a density of 154 pounds (70 kg/m3). All units
should be installed at least 15,7 inches (400 mm) from combustible materials.
* Combustible materials should not be installed close to the walls of the unit.
* The floor on which the unit will stand must be able to support a permanent load of
2,2 pounds (1kg)/cm². 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.
