21
EXAMPLES OF CALCULATING FLUE RESISTANCES/LENGTHS - EXAMPLE 3
The maximum ue extension for an Evomax 40 on open ue is 70m. Therefore
this installation is acceptable.
Example 3
22
EXAMPLES OF CALCULATING FLUE RESISTANCES/LENGTHS - EXAMPLE 4
The total maximum ue resistance for a 120kW Model is 288 Pa or
17.6m 100/150. Therefore this installation is acceptable.
Example 4
FLUE OUTLET
Horizontal Flue for 120kW Model
Resistance (Pa) Resistance (m)
Flue Size 100/150 100/150
Horizontal Wall Flue Kit 100/150 100 3.3
2 x 1m extension ue 2 x (16.4) 2 x (1)
1 x 90º elbow 50 2
Total Flue Resistance 183 7.3
Open Flue for Evomax 40
Resistance (m)
Flue Size 80
5 x 1m extension 5 x 1
2 x 45º elbow 2 x 0.6
Total Flue Resistance 6.2
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