IDEAL EVOMAX 30 Product Manual page 33

EXAMPLE 3 (OPEN FLUE)
Flue Size
Max permissible flue run
2 x 45˚ elbow
Total Flue Resistance
Therefore this installation is acceptable as only a 6m run.
EXAMPLE 2 (CONCENTRIC)
Flue Size
Max permissible flue run
2 x 45˚
Total Flue Resistance
Therefore this installation is acceptable as only a 3m run.
OPEN FLUE FOR EVOMAX 30
EXAMPLE 4 (CONCENTRIC)
Flue Size
Max permissible flue run
2 x 90˚ elbow
Total Flue Resistance
Therefore this installation is acceptable as only a 2m run.
VERTICAL FLUE FOR EVOMAX 80
Resistance (m)
80
65
2 x 0.45 = 0.9
65 - 0.9 = 64.1
HORIZONTAL FLUE FOR EVOMAX 120
Resistance (m)
80/125
12
2 x 0.85 = 1.7
12 - 1.7 = 10.3
Resistance (m)
100/150
17.6
2 x 1.9 = 3.8
17.6 - 3.8 = 13.8
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