„Installation and operation manual for fireplace insert”
KFDECOENG1.1562012
24
3 Selection of chimney parameters
– chart
Figure 18. Height and diameter of the chimney depending on the area of the fireplace door. Height of the
chimney is to be measured from the point of connection of the furnace
(Dh hydraulic diameter = 4*area/circumference).
Furnace open on one side
Area = a • h [m²]
Minimum reduced hydraulic diameter for the fireplace insert may not be smaller than 150 mm, if chimney height
is observed in compliance with figure 18.
MINIMUM CHIMNEY HEIGHTS
SECTION AREA OF FIREPLACE DOOR OPENING [m
2
]
C
HI
M
NE
Y
H
E
IGH
T
[
m
]