HAMWORTHY HEATING LTD
45
PUREWELL VariHeat he
500001155/F
Model
Component
65 he 85 he 105 he
Straight tube ø150mm maximum length (m)
149
88
69
45° bend ø150mm Equivalent tube length (m)
2
2
2
90° bend ø150mm Equivalent tube length (m)
2.2
2.2
2.3
125 he
47
2
2.3
Straight tube ø100mm maximum length (m)
19
12
8
5
45° bend ø100mm Equivalent tube length (m)
1.3
1.3
1.3
1.3
90° bend ø100mm Equivalent tube length (m)
1.5
1.5
1.5
1.5
Figure C1.2 - Open (Natural Draught) B23 Flue System
Figure C1.1 - Flue Resistance