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2000225065A
3 Flue Location and Ventilation
3.1 Flue Position and Length
The standard horizontal flue is fitted onto the top of the boiler
using the flue elbow.
See diagrams 3.1and 3.2 to determine whether a standard flue
can be used.
An elevated flue system can be installed with the addition of
extension kits, see section 3.3.
When extension pipes are used the flue system must be
designed to have a continuous fall to the boiler of at least 2.5
o
to allow condensate to run back into the boiler and out via the
drain.
3.2 Internal Flue Installation
The flue can be installed from inside the building, when access
to the outside wall face is not practicable.
3.3 Flue Options
There are various flue systems to choose from, as follows:
Standard horizontal flue pack - Pt. No. 2000460360
Vertical flue terminal kit - Pt. No. 2000460480
2 Metre Extension Kit - Pt. No. 2000460483
1 Metre Extension Kit - Pt. No. 2000460482
0.5 Metre Extension Kit - Pt. No. 2000460481
Adjustable Flue Pipe 0-50 mm Kit - Pt. No. 2000460487
45
°
Flue Bend Pack - Pt. No. 2000460485
90
°
Flue Bend Pack - Pt. No. 2000460484
Additional accessories are available.
See Hepworth Heating “Flue Options Guide” for configurations
available.
WALL THICKNESS 'X' = 75 TO 554mm
9928
REAR FLUE - STANDARD
"X"
Diagram 3.1
Diagram 3.2
SIDE FLUE - STANDARD
DISTANCE 'Y' = 335 TO 730mm - LEFT
9935
DISTANCE 'Y' = 305 TO 730mm - RIGHT
"Y"
