Chimney/Flue Connection - Kalfire W Series Installation And User Manual

3.6 Chimney/flue connection

The Kalfire W is connected to an existing flue. The operational
height of the flue must be minimum 4.5 meter (draught 12 Pa),
calculated from the point at which the flue duct is joined to the
appliance.
Take local legislation and environmental factors into
account.
Table 3: Chimney/flue diameter and firebox per model
Kalfire type
Width/ height
W45/48F
W60/51F
W65/38C
W66/48S
W70/33F
W71/62F
W80/52T
W85/40F
W90/47C
W90/47S
W100/61F
W105/47F
W105/47T
W120/38F
If you want to use a flue diameter that differs from those shown
in table 3, use the formula below to calculate a possibly smaller
diameter.
19
Firebox (mm)
415/ 454
545/ 470
610/ 374
333/ 374
355/ 475 (2×)
620/ 475
305/ 665
655/ 580
747/ 485(2×)
795/ 360
870/ 460
390/ 460
870/ 460
390/ 460 (2×)
570/ 926
995/ 440
995/ 440(2×)
1145/ 340
Fsch
Fso
Hsch
e
Minimum fresh
Firebox (cm²)
air supply (mm)
1884
2560
3527
4631
2028
3800
3625 (2×)
2860
5796
7590
5278
4380
4380(2×)
3895
Flue section in cm².
Surface firebox in cm².
Height of flue in metre measured from the upper side of the Kalfire.
Influence factor between 0.2 and 0.6 determined by the flue quality:
0.2 with a perfect flue, straight above the Kalfire; 0.6 with connection
less than 45°.
1× Ø150 mm
1× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150 mm
2× Ø150
Flue (mm)
Ø150
Ø180
Ø180/Ø200
Ø200
Ø180
Ø250
Ø200
Ø200
Ø250
Ø250/ Ø300
Ø250
Ø250
Ø250
Ø250