What Is the Difference Between Flue Outlet and Chimney?
In this post, we compare and contrast the flue and chimney systems in terms of standards, maintenance, and planning. They two can both be used as gas appliances. Chimney and flue systems are an essential part of the appliance’s installation. It is vital that you understand the differences between the flue outlet and the chimney. The differences include:
- the demand for the two pieces in the efficient removal of the combustion products
- how they are made
- the materials used to make up the two parts.
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Standards and Regulations Chimney and Flues Systems
Just like for all other parts of the gas installation task, some specific regulations and standards must be considered. With particular reference to working on chimney and flues systems, there are standards set by the BS (British Standards) and in the GSIUR (Gas Safety Use & Installation Regulations. There are regulations established for the installer, designer, and supplier of the chimney and flue systems and the property owners regarding maintenance.
The regulation applied to this area of work is the British Standard 5400 ventilation and fleeing for the gas appliances of the rated input that does not exceed 70 kW net. The first part of the regulation focuses on the installation process of the gas appliances to the chimneys and the maintenance of the chimney. The second part focuses on the maintenance and installation of the ventilation and flues for the gas appliances.
Like the other works on gas, it is vital to ensure the person working on the flues is competent enough. And their working skills must comply with the GSIUR requirements. The building standards that apply to gas appliances are included in the Approved Document J. It highlights Fuel storage Systems and Combustion Appliances laws. Document J was implemented on 1st October 2010 and is updated regularly. Section 1 of the documents focus on the general provisions that apply to combustion installations.
For one to ensure the safe accommodation of the combustion appliances, they must make sure that there is enough air for combustion and, if necessary, to cool the appliance that usually works without the POC (product of combustion) causing hazards to health. The document further states that it is essential to make sure that the device is fitted to consume Carbon Monoxide where the fixed appliance is installed. The appliance should be in the position to operate without causing any damage to the fabric around in the building through heat exposure. Also, the flue, chimney, and appliance are inspected and confirmed to fit for the task intended. Above all, the flue or chimney is labeled to help indicate its capability and performance.
Planning and Exchange of Information
The installer and designer of the chimney and the installer and provider of the gas appliance need to agree and document the essential compatibility information with the client ad appropriate. When installing a chimney configuration or a new chimney or modifying the chimney, there are essential details you should always keep in mind. They include:
- The route, size, and type of the chimney.
- The size and type of heat input of the appliance.
The two factors mentioned above are particularly vital when varied trades are used in the chimney configuration and the erection of the chimney on the gas appliance. In addition, whenever you fit the gas appliance to the existing room-sealed chimney or open-flue chimney configuration, you must confirm the suitability of the chimney to the gas appliance. Whenever the chimney is supplied together with the gas appliance, for instance, a room-sealed configuration, all you need to do is agree and document with the users that the specific chimney configuration is perfect for that particular gas appliance. In a case where you are replacing or installing a new flue/chimney configuration, you must ensure that the installation you make is matching with the gas appliance.
Maintenance of the Chimney and Flues
The person responsible must be informed that, for safe operation and continued efficiency of the chimney/flue and the gas appliance, it is vital that regular and adequate maintenance is carried out by a technician. It is essential to be able to check condition of the old chimney. This should be applied when re-opening one after many years of not being utilized.