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EXAMPLE 3 (OPEN FLUE)
EXAMPLE 4 (CONCENTRIC)
OPEN FLUE FOR EVOMAX 2 30
Resistance (m)
Flue Size 80
Max permissible flue run 65
2 x 45˚ elbow 2 x 0.45 = 0.9
Total Flue Resistance 65 - 0.9 = 64.1
HORIZONTAL FLUE FOR EVOMAX 2 120
Resistance (m)
Flue Size 100/150
Max permissible flue run 9
2 x 90˚ elbow 2 x 1.9 = 3.8
Total Flue Resistance 9 - 3.8 = 5.2
EXAMPLE 2 (CONCENTRIC)
VERTICAL FLUE FOR EVOMAX 2 80
Resistance (m)
Flue Size 80/125
Max permissible flue run 10
2 x 45˚ 2 x 0.85 = 1.7
Total Flue Resistance 10 - 1.7 = 8.3