890 HD BF INSTALLATION INSTRUCTIONS
Technical Specification
NOTE: The efficiency of this appliance has been measured as specified in BS EN613-2001 and the result is
81.8%. The gross calorific value of the fuel has been used for this efficiency calculation. Gastec have
certified the test data from which it has been calculated. The efficiency value maybe used in the UK
Government’s Standard Assessment Procedure (SAP) for energy rating of dwellings.
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