To carry the fumes and air pollutants from the stove or hearth effectively and safely
The chimney flue liners must be designed so that:
- they have the same inner diameter along the whole chimney;
- chimney liners should be as vertical as possible, the deviation from the vertical run shall not be more than 15 degrees but can never exceed 30 degrees in one segment;
- the non-vertical (slant) segment of the chimney flue liner must not meet (run through) any of the roof framing components;
- the flue liner should be either round-shaped or square. If it must be a rectangular chimney flue iner, the long/short side ratio should not exceed 1,5/1.
[SHOP1]
The m...
As all exhaust gasses contain certain portion of water (in the form of steam), usually around 10%, the chimney flue has to be hotter than 60?C (which is the condensation point of the flue gas with 10% of water) in order not to condensate the gasses. But if the hot flue gas meets with cool (much cooler than 60?C) air in the upper part of the chimney, it
is forced to condensate and pours back to the chimney liner. This often happens when just heating the stove. If the condensate is not neutralized (in the built-in collector with carbon absorbent) it starts to gather the sulfur and carbon oxides from the ar and at the end of this chemical reaction we have got the carbon and sulfur aci...
