Turner & Wilson Ltd

Twinflex MF904

HETAS ID:	EC055
App. Type:	Double Skin Flexible Chimney Relining Systems
Certificate Ref:	E-C055-2022
Std. Tested to:	BS EN 1856-2:2004
Flue Sizes:	100, 125, 130, 150, 160, 180, *200, 250, 300, 350, 400 mm

Performance

HETAS has audited and verified that all applicable clauses in the test report have been passed in respect of the materials, design, and construction in accordance with the relevant BS EN type test standard for the appropriate technology, performance criteria of which is below;

Temperature Level	T600
Pressure Level	N1
Condensate Resistance	W
Corrosion Resistance	Vm
Flue Liner Material Specification	L50060
Sootfire Resistance (G:yes or O:no) and distance to combustible material (in mm)	G

Safety

The product certified has been assessed for its suitability for installation in domestic properties against the requirements of the Building Regulations and appropriate standards. The performance of the appliance has been verified as meeting the following technical performance attributes;

Combustible Clearances	- mm

*HETAS product approval is not valid for appliances fitted with an external air supply ducted directly to the appliance. The installer should reference HETAS technical note TN_0020 General Guidance for the Installation, Risk Assessment & Commissioning of Solid Fuel Appliances with a Dedicated External Air Supply for more information.

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