Chimney provisions for flue gas temperatures not greater than 250°C

The chimney, flue and flue pipe for an oil burning appliance, with flue gas temperatures not greater than 250ºC, should – (a) be constructed in accordance with the provisions on the selection of components and the manner of their installation given in paragraphs 5.15 to 5.20; or (b) if the intended appliance is of known type – (i) be built using factory-made components that have been independently certified as achieving a performance at least equal to that corresponding to the designation given in Table 5.2 for the intended appliance type, when tested to an appropriate European chimney standard; and (ii) be installed in accordance with the provisions of paragraphs 5.17 to 5.20 and Section 1, as relevant, and in accordance with the appliance manufacturer's and component manufacturer's installation instructions.