NOTE: Pay attention that the breeching is not inserted to deep into the chimney duct. It can
reduce the diameter of the chimney and limit the chimney draft, what is a very often cause of
incorrect function of the chimney.
The breeching is to be made of steel sheet, at least 3mm thick.
The chimney should have cross-section and height that ensure adequate draft
(specified in table 2 - Basic technical parameters).
The diagram of the selection of the diameter of the kettle.
Effective height of the chimney in meters
The most favorable chimney cross-section is round, and thus for:
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- PLUS
20 kW - Ø 185-200mm
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- PLUS
30-40 kW - Ø 200-250mm
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- PLUS
60-80 kW - Ø 250-300mm
Other cross-sections are allowed, e.g. square or rectangular, but the side size ration should
not exceed 1 to 1.5 (provided the required draft and chimney cross-section are ensured).
The cross-section should in no way be smaller than the flue connecting piece outlet
cross-section.
The manufacturer recommends to use a chimney liner protecting the chimney duct
against condensate infiltration and will not accept any responsibility for not observing this
recommendation and causing any damage.
9. CONNECTING THE BOILER TO THE HEATING SYSTEM
Protection of the installation must be in accordance with all national standards. The
manufacturer will not accept any responsibility for the effects of not providing safety features
in compliance with above mentioned regulations and standards.
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General