DS EN 303-3:2000
DS EN 303-3:2000 Heating Boilers - Part 3: Gas-Fired Central Heating Boilers - Assembly Comprising A Boiler Body And A Forced Draught Burner Defines the requirements and test methods for the construction, the safety and the rational use of energy usage of an assembly made up of a boiler body complying with EN 303-1 and a forced draught gas