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5.5.3 INSTALLATION IN TRADITIONAL TYPE FIREPLACES (see)
When you want to take advantage of an existing chimney it is necessary to make a control check on the tightness of
it, in the event that it was not watertight it could be the case of a positive depression with respect to the atmospheric
that could filter and invade inhabited environments. It is advised if it is not completely watertight that it should be re-
intubated.
If the section of the chimney is excessively large, it is contemplated to pipe it with a maximum diameter of Ø150
mm, and is also advisable to insulate it.
It is MANDATORY to carry out a thorough cleaning of the smoke outlet, to reduce the risk of fire in the gas outlet
5.5.4 OUTER SECTION OF CHIMNEY (see FIG. 21)
To use the section of the exterior chimney, the following requirements must be met:
•
The installation that goes to the outside must be with insulated tubes with double stainless steel wall and fixed to
the building.
•
This external conduit must have a register for periodic maintenance.
•
The chimney must go up to the summit, and the requirements of section 5.3 must be met.
Ø 120 mm
5.5.5 SMOKE OUTLET TERMINATION
The smoke outlet always has to end vertically and will have in its upper part the device that we call auction and that
must comply with the following:
•
It must have a useful internal section equivalent to that of the evacuation tubes.
•
The useful output section must be at least twice as many as the evacuation tubes.
•
The auction should prevent rain, snow or foreign bodies from entering the chimney.
•
In addition, the finish must be anti-wind and overcome the ridge to guarantee the dispersion and dilution of
the combustion products.
•
It is completely forbidden to install hats or deflectors for horizontal output, like
•
all those used for gas boilers, as they can cause problems in combustion.
It is totally forbidden to cover the chimney with anti-bird nets, meshes or similar.
Hermetic closure ange in
Cap
stainless steel or aluminate
Max. Ø 250 mm
Hermetic closure ange in
stainless steel or aluminum
Insulator
Cap
Insulator
External air
intake
19
Cap
Log
cleaning
External
air
intake
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