Servicing the system | 5
B1510622_en | Operating instructions Firewood boiler S4 Turbo
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5.6 Emissions measurement by chimney sweep or regulatory body
Various legal regulations stipulate that heating systems must be inspected periodically. In
Germany this is regulated by the First Federal Emissions Protection Ordinance
(BimSchV) in the last amended version, and in Austria by various state laws.
The following minimum requirements must be met by the operator of the system for a
successful measurement:
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Thoroughly clean the boiler 2 heating days (1 heating day = 1 day during which the
boiler to be measured is in operation) before the measurement
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Ensure there is adequate fuel
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Only use fuels of high quality which meet the requirements as stipulated in the
boiler operating instructions (“Permitted fuels” chapter)
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Ensure that there is adequate heat consumption on the day of the measurement (e.g.
storage tank must be able to take heat for the duration of the measurement)
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There must be a suitable measuring port in the straight flue gas pipe for the
measurement. The measuring port must be twice the flue gas pipe diameter away
from the last upstream bend.
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If the measuring port is not correctly positioned, the measuring result will be
distorted
5.6.1 General information on measurement
Observe the following basic conditions:
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Only use fuel permitted according to the operating instructions
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Ensure that the water content (w) is greater than 15% and less than 25%
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Use short split wood (edge length EL < 10 cm) to create the measuring conditions and
for the measurement itself
Short split wood with an edge length EL < 10 cm
The term “short split wood” has been defined in these
instructions by Froling; there is no fuel standard or similar
guidelines for this.
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The fuel must be dry, clean and uncontaminated (not painted, glued, etc.)
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The combustion process must not be interrupted during the measurement
Interruptions to the combustion process include:
- Opening the boiler doors
- Stoking the burning material
- Switching off the ID fan (e.g. because of inadequate heat consumption)
