Technical Booklet L Combustion Appliances and Fuel Storage Systems·Page 59·4.13
CE marked appliances - flue sizing
For appliances CE marked as compliant with the Gas Appliances (Safety) Regulations 1995, flue sizing must follow the manufacturer's installation instructions.
For an appliance that is CE marked as compliant with the Gas Appliances (Safety) Regulations 1995, the flue should be sized in accordance with the manufacturer's installation instructions.
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