The Schiedel Gas Flue Block System
The Schiedel Gas Flue Block System is a high quality factory made gas flue block system which provides the ideal solution to build a safe and high performance flue for gas appliances.
The standard blocks have a height to match brick or blockwork and can be built into traditional cavity wall construction, which saves on cost and space.
Schiedel gas flue blocks feature a special rebated jointing arrangement which ensures ease of installation and a positive seal by using the cartridge applied jointing compound. The rebated joint minimises the risk of jointing compound extruding into the flueway.
Available with a comprehensive range of fittings the system gives Architects and Builders an almost limitless choice of economical and efficient solutions for building gas flues.
Approvals and Specifications
The system meets the relevant requirements of Building Regulations and has been successfully tested to BS EN 1858 with the given designation of T250, N2, D, 1, O(50).
Installation and Use
In the UK the system must be installed in line with the recommendations of British Standards BS 5440: Part 1 Covering the installation of flues for gas appliances.
For installation in the Republic of Ireland the flues must be installed and used as the instruction given in this brochure and to the recommendations of IS 813:2002.
The maximum overall height of the flue must not exceed 12 metres and can only be used with gas appliances having a rated input not exceeding 60 kW.
The system can be used with standard gas burning fires and convector heaters in accordance with BS 5871: Part 1. It can also be used with many types of inset live fuel effect gas fire (ILFE’s) that imitate solid fuel open fires, providing the appliance manufacturer’s instructions allow this and the fire has been approved for use with gas flue blocks.
The flues can be terminated above the roof or at a gas ridge vent terminal, in which case the twin wall gas flue is used from the flue block system in the roof space to a ridge tile adaptor or GO terminal.
The choice of precast recess units provides a low cost answer for accommodating a gas appliance with the flue blocks.
A typical composition
This illustrates a typical installation using flue blocks built into a wall and connected to a gas ridge vent terminal using components from the Schiedel twin wall gas flue. The notes are intended to give some of the options detailed in the installation instructions.
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