We are doing all we can to protect our customers and staff from the current Coronavirus outbreak. New procedures have been implemented to allow us to continue offering our normal service and next day deliveries on most items. We have also closed our showroom and we are not currently offering the click and collect service. We will continue to offer our customers the best service we can throughout this crisis and will update you as the situation changes.


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SFL Sflue Twin Wall Flue Pipe

Sflue is a top end product and with a large range of components and a multi-barb twist-lock jointing system, Sflue offers the ultimate in ease of installation and quality at a competitive price. It’s a CE approved product and has been tested to the requirements of BS EN 1856-1. Sflue is a prefabricated, factory made twin-wall insulated stainless steel system chimney. The fully welded construction combined with a high performance / high density insulating medium, provides the optimum level of performance required for modern-day solid fuel appliances such as DEFRA approved high-efficiency wood-burners alongside traditional stove installations.

Sflue utilises an eight-barb quick lock jointing system to secure each joint. The components are secured by locating the barbs with a twist of each section. A locking band is then used at each joint. The joint design facilitates a maximum unsupported height above the last support of up to 1.5 metres, subject to the design considerations.

Sflue is manufactured from a high grade 316L (1.4404 : X2CrNiMo 17-12-2) stainless steel liner and a 304 (1.4301 : X5CrNiMo 18-10-2) outer case. The product utilises a high performance mineral wool which is auger injected into a 25mm annulus between the inner and outer to a mean density of 250kg/m3, offering rapid stabilisation of draught and excellent thermal performance. The unique joint design allows the inner liner to freely expand and contract throughout the system as the flue gas temperature varies, alleviating the need for additional expansion components.