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Solid Fuel Fired Models - Flues

A Solid Fuel Aga requires some form of flue or chimney, so as to safely remove the natural smoke and combustion fumes, at the same time taking cooking smells and steam from the ovens.

For the Aga to work properly, the chimney must be constructed of the the appropriate materials and rise to a satisfactory height, whilst complying with current legislation, such as the Building Regulations.

The need for access to a chimney will probably dictate the position chosen for the Aga, and we would strongly advise that your local Aga Distributor be asked to carry out a survey of the proposed site.

Two main chimney arrangements are available (see illustration below):

1. To use a masonry chimney, suitably lined with an appropriate material and terminating at a height above the main roof ridge. The lining must be of at least 150mm diameter.

2. Where no convenient chimney exists, it is possible to use a twin walled, factory insulated, prefabricated, stainless steel chimney system, such as ‘S.M’ from Selkirk

Whichever arrangement is chosen there are several requirements common to both:

• Means for sweeping the chimney must be provided i.e. a soot door
• No flue sharing with other appliances
• Bends to be kept to a minimum and must not be less than 135 degrees from the vertical.
• For aesthetic reasons, black vitreous enamelled, single skin, cast iron pipe may be used to connect between the Aga and the main chimney. The pipe will be 100mm diameter, rising vertically from the top of the Aga, before bending at 45 degrees into the chimney, where necessary. Single skin pipe must not extend outside of the kitchen area.
• Alternatively, it is sometimes possible to use a rear connection from the Aga, horizontally through the rear wall and into a chimney situated immediately behind. The horizontal pipe must be no longer than 150mm, i.e. the thickness of a single brick.