Keston Combi 30 - Page 16

16
INSTALLATION
Keston Combi - Installation and Servicing
FLUE OUTLET
10 FLUE INSTALLATION EXAMPLE KESTON COMBI 30
11 FLUE INSTALLATION EXAMPLE KESTON COMBI 35
6m
2m
Bracket at
each 1 metre
1m
4m
1.5m
6m
1.5º back
to boiler
1.5º back
to boiler
Air
Elbows 2 x 1m = 2m
Straights 6+2+0.15 = 8.15m
Total = 10.15m
Overall Flue / Air = 25.65m
Flue
Elbows 3 x 1m = 3m
Straights 4+6+1.5+1 = 12.5m
Total = 15.5m
Calculations
0.15m
Sleeve
2m
2.5m
1.5m
2m
4m
4m
0.15m
3.5m
3.5m
1.5º back
to boiler
Air
Sleeve
1.5º back
to boiler
Bracket every
1 metre
Flue
3 x 90º elbows 3
Straight lengths 2.5
1.5
3.5
4
14.5
Overall Flue / Air = 30.15m
Air
4 x 90º elbows 4
Straight lengths 2
2
3.5
4
0.15
15.65
Calculations
2 4 6 8 10 12 14 16 18 20 22 24 26 28
2
6
10
14
18
22
26
30
Accep table Operating Area
Keston Combi 35 - Flue & Air Pipe Length
Flue Pip e Length [m]
Air Pipe Length [m]
15.65
14.5
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
2
6
10
14
18
22
26
30
34
38
Accep table Operating Area
Keston Combi 30 - Flue & Air Pipe Length
Flue Pip e Length [m]
Air Pipe Length [m]
10.15
15.5
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