ADVERTISEMENT FEATURE SFL Flues and Chimneys joins ICOM
SFL Flues and Chimneys are the first flue and chimney manufacturer to join ICOM, giving further visibility to their extensive portfolio of flue, chimney and exhaust products alongside providing information, advice and guidance promoting the highest industry standards
I
COM offers SFL Flues and Chimneys the opportunity to be associated with Commercial and Industrial heating providers, giving further visibility to their extensive portfolio of flue, chimney and exhaust products alongside
providing information, advice and guidance promoting the highest industry standards. Whatever the project SFL can provide full technical support, from initial product selection to complete design support and technical calculations. SFL’s National Sales & Marketing Manager for the UK & Ireland, Andy Dimond, said: “As a leading UK manufacturer of flue, chimney, and exhaust systems SFL are proud to be associated with such a prestigious industry body such as ICOM”.
SFL specify to the latest standards of Commercial and Industrial flues and exhaust systems - tested to BS EN 1366-13. They promote and support the introduction of EN1366-13, that chimneys now have an official test to assess the fire resistance of both the product and penetration components when passing through a fire rated compartment wall or door, etc.
Although EN1366-13 is a test standard, it is important that the test results are classified in accordance with the latest revision of EN13501- 2, allowing specifiers to correctly assess the fire resistance classification of the product required for the project. Jason Lee, Technical Sales & Engineering Manager at SFL discusses the new standard and its key findings in his recently published article available at
www.sflchimneys.com. It is somewhat surprising that historically,
in respect to chimneys, there has not been a specific standard in the United Kingdom or in that matter, Europe, that specifically
SFL Flue and Chimneys EUROPA PLUS ® and NOVA® Twin Wall Flue System (100-350) are tested to EN1366-13.
covered the fire resistance of both the chimney construction and associated fire-stopping penetration arrangements when passing through a fire rated compartment wall or floor. In lieu of this, most manufactures in the UK have either undertaken an ad-hock test, based on the general requirements of BS476 Part 20 or more correctly tested to BS 476 Part 24, Method for the determination of the fire resistance of ventilation ducts, as the only viable alternative. Unlike today, the main criteria when assessing a chimney for fire resistance was the stability and integrity of the product. Vary rarely was the insulation performance and hence the surface temperature of the chimney considered. Failure to observe this could lead to a fire on the un-exposed side, should combustible materials come within proximity to the surface of the penetration and chimney components. This all changes with the European system that focuses on both the integrity and insulation performance of the chimney system, under the EI classification.
Since 2004 and to date, the European Committee for Standardisation has approved thirteen standards covering fire resistance tests for service installations under EN 1366. EN1366 Part 13 corrects this historic void and introduces a specific fire resistance test for chimneys and penetration elements as part of a chimney construction under standardised fire conditions. This standard has now been adopted in the UK under BS EN 1366-13.
In essence, EN1366-13 is very similar to that of BS476 Part 24; however, with one significant difference. Unlike ventilation ducts, which in the main transport air to different parts of the building, a chimney carries products of combustion from source to atmosphere at high temperature. EN1366-13 introduces a pre-treatment requirement to simulate the aging that the chimney can suffer over time due to its normal operation. The pre- treatment involves subjecting the chimney to a flue gas temperature equal to the test temperature based on the manufacturers declared temperature classification for a period of six hours. As an example, a chimney CE Marked to EN1856-1 with a temperature classification of T600 would require a pre- treatment temperature of 700°C for six hours, before the commencement of the actual fire resistance testing.
This is an important factor above and beyond testing ventilation ducts, as the extended high operating temperatures over the life of the chimney product could affect the performance of the insulation or the integrity of the product, ultimately putting its declared fire resistance at risk.
When JRF, Scotland’s largest independent stockist of SFL Flues and Chimneys and a primary turnkey solution provider on behalf of the British Manufacturer were asked to extend an existing diesel generator exhaust system for a long-standing customer on a recent large commercial project in Edinburgh, they chose the SFL Europa® twin wall stainless steel system. Regarding the selection process JRF Chimneys
Technical Team said: “We chose the Europa® twin wall stainless steel system because it can withstand the pressures associated with a large generator unit and the maximum continuous operating temperatures up to 600 Degrees C. By relocating the termination location to ensure it discharged above the higher adjacent buildings, JRF successfully enhanced the safety and efficiency of the system as a whole, while ensuring compliance with the Clean Air Act requirements. “ JRF were delighted to be chosen to design, supply and install their solution for this large project in Edinburgh. In consultation with SFL they were asked to carry out a site survey and recommend a solution to improve the existing exhaust system, the current discharge location was causing issues with air quality for the higher surrounding buildings. JRF’s team successfully installed 600mm of SFL Europa Chimney materials to extend the existing generator exhaust system, to allow safe discharge above the higher adjacent buildings. With the recent appointment of Steve Wilson as Specifications Sales Manager working within the commercial arm of the companies UK & Ireland operations SFL’s growing team of experienced commercial flue experts are on hand to assist at every stage of your project. Support includes product selection and application advice including existing system surveys and advice. Working with key installation partners they provide a bespoke customized turnkey solution. SFL are justifiably proud of their British built heritage, with most of their products designed fabricated and tested to the latest United Kingdom and European Standards at their advanced 120,000 Sq Ft manufacturing facility in Barnstaple, Devon. During 2022, SFL became part of the Sphering Group, originating in France, Sphering are recognized as the market leader in Flue and Air Care across Europe. Becoming part of the group has strengthened SFL’s capabilities, adding further R&D capabilities whilst SFL, add a sixth manufacturing plant to the Group’s industrial capacities, operating in France, Italy, Belgium, Germany, and Poland.
www.sflchimneys.com
24 BUILDING SERVICES & ENVIRONMENTAL ENGINEER SEPTEMBER 2024
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