NBN EN 303-1/A1:2003

Replace the first paragraph by the following text :

"This European Standard applies to standard boilers and low-temperature boilers with forced draught burners with a nominal heat output not exceeding 1000 kW, which are operated either with negative pressure (natural draught boilers) or with positive pressure (pressurised boiler) in the combustion chamber, in accordance with the boiler manufacturers' instruction."

Delete the text in the 7th paragraph:
- condensing boilers, boilers with oil vaporisation burners and low temperature boilers,
and replace by:
- condensing boilers and boilers with oil vaporisation burners.

The note of the 7th paragraph has to be deleted.