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3.10.3. Timber Frame Buildings
If the boiler is to be installed in a timber frame building, it should be fitted in accordance with the Institute of
Gas Engineers document IGE/UP/7/1998. If in doubt, ask local gas utility company or Gledhill Ltd.
3.10.4. Room ventilation
The boiler is room sealed, so when it is installed in a room or space, a permanent air vent is not required.
3.10.5. Compartment ventilation
If the boiler is installed in a compartment, a permanent air vent Is not required. However leave existing air
vents.
3.11. FLUE LOCATION AND VENTILATION
3.11.1. Flue Position and Length
The standard horizontal flue is fitted onto the top of the boiler as shown in diagrams 3.11 and 3.12. The
dimension “X” for the rear outlet flue and dimension “Y” for the side outlet flue must be measured and
compared against the standard flue supplied to check if it is suitable.
An extended flue system can be installed with the addition of extension kits (see section 3.11.3 Flue options).
The flue system must always be designed and installed to have a continuous fall towards the boiler of at
least 3
o
to allow the condensate to run to drain via the boiler.
3.11.2. Internal Flue Installation
The flue can be installed from inside the building when access to the outside wall face is not practical.
3.11.3. Flue Options
The concentric flue systems and kits available for this boiler are listed below in table 3.4. Additional
accessories and flue systems are also available for this boiler. See ‘Gledhill Boiler Flue Options Guide’ for
configurations that are available.
Table 3.4 Concentric Flue Kits and Options
Description Part
No.
Standard horizontal flue kit
GT461
Vertical flue terminal kit – pitched
AFB001
Flat roof flue kit
AFB010
Ridge terminal flue kit
AFB020
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