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(2) Base waste-heat recovery rates for industrial furnaces (I 3 (1) 2))
(1) Base waste gas temperatures for boilers
  1. Waste gas temperature means the temperature at the furnace outlet or recuperator inlet for waste gas emitted from the furnace chamber.
  2. The capacity categories for industrial furnaces are as follows:
      A Furnaces with a rated capacity of from 84,000 MJ per hour.
      B Furnaces with a rated capacity of from 21,000 MJ to under 84,000 MJ per hour.
      C Furnaces with a rated capacity of from 840 MJ to under 21,000 MJ per hour.
    Notes:
    1. Values for base waste-heat recovery rates given in the table indicate recovered heat value as a proportion of the sensible heat value of the exhaust gas emitted from the furnace chamber at combustion at near rated load.
    2. Values for base waste-heat recovery rate given in the table shall not apply to the waste-heat recovery rates of the following industrial furnaces:
      1. Furnaces with a rated capacity of under 840 MJ per hour.
      2. Furnaces requiring a special atmosphere for oxidation or reduction.
      3. Furnaces combusting byproduct gas with a heat value of no more than 3,800 kJ per normal cubic meter.
      4. Boilers not in operation at regular inspection or otherwise not in regular operation, and boilers used for development, research, or trial production.
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