Technical Booklet L Combustion Appliances and Fuel Storage Systems·Page 73·5.11
Flue gas temperature classification for oil-fired appliances
Oil-fired appliance flues must be designed according to their expected flue gas temperature, classified as either not greater than 250°C or greater than 250°C, as measured according to OFTEC Standards A100 or A101.
The satisfactory provision of a flue and flue pipe depends upon the flue gas temperature to be expected in normal service. Separate guidance is given according to whether the proposed installation should have a flue gas temperature not greater than 250ºC, or greater than 250ºC, as measured, for example, in accordance with OFTEC Standards A100 or A101. Suitable chimney systems may then be selected based on their performance designation having been tested in accordance with the relevant European standard.
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