Installation

Mandatory Requirements

A competent person may carry out connection to an appliance, which is not connected to the fuel supply. However, connection to an appliance that is connected to the fuel supply must be carried out by a CORGI (gas) or OFTEC (oil) registered installer.

The flue system must be installed to comply with Building Regulations Document J (in England, Wales & Northern Ireland) Regulations for Scotland. The installation must also comply with BS7566 pts 1,2,3,4 for oil flues and BS5440 pt 1: 2000 for gas flues up to70kw.

Jointing

Pipes, bends, tees and flue gas carrying components are joined together by a simple push fit. The joint is then secured by fitting a locking band. The male spigot should be uppermost and pointing in the direction of the terminal as indicated on the product label. All female components will be supplied with a locking band.

Gaskets should be fitted dry and lubrication applied to the internal of the female liner socket. Avoid making joints within wall and ceiling spaces. Any flue pipe (i.e. single wall) connection to the chimney must be made in the same room as the appliance. The chimney must project at least 150mm below the ceiling.

Adjustable Length

An ICS adjustable length allows adjustment from 75mm up to 250mm. Assembly is achieved by fitting the adjustable length over the preceding pipe. Remove insulation if necessary and secure when desired length is achieved using joint band supplied. The adjustable is not load bearing, therefore adequate support must be provided immediately above.

Connection to Appliance

Always use an appliance connector, sealed using fire rope and fire cement or high temperature sealant. The inner liner should not project below the appliance outlet spigot and can be cut to length if required.

Appliance Removal

Use of a pipe length and an adjustable length immediately above the appliance enables removal of the appliance later without dismantling the full system.

Painting

If required to be painted, simply clean the surface with a solvent cleaner (White Spirit), apply a coat of primer and a top coat of high temperature paint e.g. enamel. Extreme care must betaken when cleaning with solvent to ensure that it does not come into contact with the insulation within the cavity or gasket if fitted.

Recommended distances to combustibles

In accordance with building regulations it is essential that the required distance to combustible materials is maintained throughout the chimney system. For gas and oil this is 50mmand for solid fuel 75mm. ICS support components provide this as standard.

Support Components

The weight of a chimney system is considerable and requires independent support. The appliance should take no weight. A wall support at the base of the stack will support up to 10m of chimney, or in an inverted position, up to 15m. Wall supports can then be used as an intermediate support every 10m thereafter.

Alternatively, on internal systems the weight is held by using a support plate and clamp fixed on top of the first floor/ceiling joist. A Fire stop plate is also required fixed to the ceiling below. In a normal house, when passing through the second floor the only requirement is two fire stop plates because the system is adequately supported at first floor level.

Refer to load bearing table on page 15 for full details of maximum loadings.

Wall brackets and roof brackets are not load bearing and give lateral support only. Wall brackets should be fitted every 3m and at any offsets to ensure the system is rigidly supported.

Where the flue is free standing above the roof and its height exceeds 1.5m beyond the last support or the roof a guy wire bracket must be used, and every 1.5m thereafter. Alternatively, a height of up to 4m can be achieved unsupported with the use of an extended locking band at the joint immediately below and every joint above the roof level.