Instruction manual

Ventilation requirements are as detailed in

section 1.9

Option 2 - Figure 12c. Forced Burner with Heat Exchanger (VSXO Standard Flue)

For flued products of combustion and no ducted air

Products of combustion

Air

Inlet

Products of combustion

Firing

tube

E Forced Burner

F Heat Exchanger

G 100mm (4ins) Clips x2

H 100mm (4ins) Flexible Flue

J 100mm (4ins) Flexible Flue to Fan

K 127mm (5ins) to 100mm (4ins) Reducer

L 127mm (5ins) Twin Wall Flue Pipe

Ducted air must be used in locations

where there is airborne dust or where

there is a polluted atmosphere e.g. Chlorinated

Vapours.

Maximum length = 9m

Minimum diameter = 100mm

Maximum no of bends = 2

Maximum flue length = 9.5m @ Ø125mm

Maximum no of bends = 2

All flues must terminate vertically.

For further information on flue runs, please refer

to BS 5440 pt.1 2000