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  1. Aug 19, 2018 · Understanding CE Designations. 19 Aug 2018. One of the key features of the European Standard for system metal chimneys is a user-readable classification system that designates the features of the product. A label showing the classification must go with each flue component.

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  2. Chimney - Class 1. You can only use Class 1 or Multi-Flue gas fire with this flue type. Chimneys are easily recognisable as you will have a traditional chimney stack with a gas or pot terminal on the roof or running up the side of your house to the roof.

  3. A Class 2 Chimney normally refers to a prefabricated single skin metal chimney (usually interlocking stainless steel pipes) or precast concrete block flue system with a 125mm (5”) diameter which is built into a home’s interior walls and is specifically designed for use with gas appliances.

    • Traditional Chimneys
    • Prefabricated Flues
    • Pre-Cast Flues
    • No Chimney

    Typically these are found on older properties and they tend to be the traditional brick chimney style. For the most part their purpose was to facilitate an open fire and they would require natural circulation to take the waste gases away from the fireplace. For homes with a Class 1 Chimney there doesn’t tend to be many restrictions on the type of f...

    This kind of chimney/flue may be found on an old property in circumstances where the chimney has been fitted with a steel flue liner. A pre-fab flue could also be found on a newer home which has a built-in steel flue. Homes with prefabricated flues are easily identifiable by the metal cowl on the roof. The flue itself is comprised of metal flue pip...

    A much more common feature of new properties is to have a pre-cast flue. This is a shallower concrete structure that is built within the interior house walls and can be noticeable on the roof via a small ridge vent. Class 2 fires or an electric fire are really the only compatible options here.

    If a property doesn’t have a chimney it doesn’t necessarily mean that a fireplace isn’t an option. While an electric fireis always an option as they don’t require a chimney at all there are other options too such as: 1. Flueless Gas Fires– as the name suggests these don’t require any flue and a catalytic converter is built in and removes harmful fu...

  4. This paper proposes a topology for local computer networks. Called "Dragnet", it is similar to the Ethernet network in function, but rather different in the following respects:1. Instead of a single long bidirectional cable, there are multiple short unidirectional cables.2.

  5. Aug 10, 2022 · What is a Class 2 chimney? A Class 2 chimney is a pre-cast concrete or pre-fabricated metal flue liner system which is made from interlocking metal flue pipes, held togethor by locking bands and wall brackets. They can be identified by a metal cowl on top of a chimney stack.

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