INSTALLATION, OPERATION AND MAINTENANCE MANUAL
BiSolid Comfort OM-BSCV00/08/2012/EN
38
Have in mind that the boiler must be connected to the chimney system (to flue gasses)
in accordance to the local legal conditions.
When connecting the boiler to the chimney it is necessary to ask professional installer
for consultation and installation, because all activities must conform to the regulations
for installation and the manufacturer instructions.
The boiler can be correctly connected to the chimney by using a chimney system
project and technical specification.
The chimney system design sizing (flue gas pipelines system) must be based on the
flue gasses mass flow rate, at maximum heating output of the boiler.
The effective height of flue gas chimney is determined by the coupling point of the
boiler flue outlet to the chimney.
Make sure that the chimney system sizing and the flue connection to the chimney is
performed by qualified specialist.
If the boiler is not connected properly to the chimney, the product warranty will be
considered as invalid.
The presented dimensions in Figure 18 are only tentative. The operation scheme depends on
the diameter, height, chimney wall roughness and temperature difference between the
combustion products and the outside air temperature. We recommend the usage of chimney
with integrated metal insert.
Usually for more accurate calculations, performed by heating specialist or installer of the
chimney system, the below formula is used for determining the chimney cross-section area.
F - Chimney cross-section area, cm
2
.
a – Coefficient (
а
= 0.041 for wood logs).
Q
N
– Boiler heating outlet, kCal/h.
H – Chimney height, m
