EK3 Frontier Boiler Manual
42
Seventh Edition- October 2015
Common Flue Pipe Sizing
Five Boiler Flue Pipe Sizing
Four Boiler Flue Pipe Sizing
EK-3
EK-3
EK-3
EK-3
EK-3
EK-3
Two Boiler Flue Pipe Sizing
EK-3
EK-3
EK-3
EK-3
EK-3
See Note 1
12" Dia or 12"x16"
12"
12"
16"Dia
or
16"x16"
See Note 1
18"Dia
or
16"x18"
See Note 1
12"
12"
16"
14" Dia or 12"x16"
Three Boiler Flue Pipe Sizing
EK-3
EK-3
EK-3
See Note 1
EK-3
EK-3
EK-3
EK-3
EK-3
12"
12"
See Note 1
20"Dia
or
18"x18"
12"
EK-3
Six Boiler Flue Pipe Sizing
Notes:
1. Boiler Flue Size: Ø7”
2. Pipe each boiler’s air intake
separately.
3. Use schedule 40 PVC for intake
piping.