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Chimneys & fl ues
A guide to selecting and installing fl ues and chimneys
Since 1969 SFL have been leading the way in fl ue and chimney manufacturing, combining pioneering innovation and technology off ering industry leading technical support for commercial and industrial applications ensuring continuous product development and testing to the latest standards. Here we look at the issues surrounding selecting and installing commercial fl ues and chimneys for safety and effi ciency.
A
chimney is an integral part of the heating system, responsible for safely conveying combustion products to the
atmosphere. The chimney type is determined by the application and fuel used, and is designed in accordance with national standards and regulatory documents. The SFL commercial chimney range is designed and manufactured to meet the exhaust gas requirements of specifi c fuel types in given situations, each fl ue system is tested up to and beyond their design limits to provide reliable performance statistics upon which project calculations can be based.
Design and regulation
In the residential sector, the design and installation of chimneys and fl ues follow Approved Document J. However, the commercial sector lacks a direct equivalent, prompting the BFCMA to release a
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Commercial Flue Guide. This guide addresses chimney principles, regulations, design, height considerations, and compliance with the Clean Air Act, aiding in the selection and installation processes for commercial applications. With the introduction of EN1366-13, chimneys now have an offi cial test to assess the fi re resistance of both the product and penetration components when passing through a fi re rated compartment wall / fl oor etc. Both SFL products, Europa Plus® and Nova® (100-350) are tested to EN1366-13.
Importance of insulation
Proper insulation is crucial for optimal chimney performance. The SFL EUROPA® family includes high-pressure, twin-wall systems that can endure continuous temperatures up to 600°C ideal for applications ranging from coff ee roasting machines to datacentres. These systems feature a stainless steel inner and outer case, along with high density insulation, ensuring effi cient installation across various confi gurations. Europa Plus is also available in 25mm, 50mm and 100mm insulation thicknesses, where the potential for accidental
Fig 1
contact and clearances to combustible materials are critical. Always look for the CE mark and the upcoming UKCA mark, which confi rm compliance continues on page 12
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