EN 777-3:2009

Multi-burner gas-fired overhead radiant tube heater systems for non domestic use - Part 3: System F - Safety

Publication date:   Sep 30, 2009

General information

99.60 Withdrawal effective   Oct 9, 2019


CEN/TC 180 Decentralized gas heating

European Norm

91.140.40   Gas supply systems



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This European Standard specifies the requirements and test methods for the construction, safety, classification and marking of non-domestic gas-fired overhead radiant tube heaters incorporated into a multi-burner system (called system F and referred to in the body of the text as the “system”) with each burner unit under the control of an automatic burner control system.
This standard is applicable to Type B52x and Type B53x systems (see 4.3) intended for use in other than domestic dwellings, in which the supply of combustion air and/or the evacuation of the products of combustion is achieved by mechanical means.
This standard is not applicable to:
a) systems designed for use in domestic dwellings;
b) outdoor systems;
c) systems of heat input in excess of 120 kW (based on the net calorific value of the appropriate reference test gas);
d) systems having a draught diverter incorporated between the exhaust fan and the flue duct;
e) systems having fully pre-mixed gas and air burners in which:
1) either the gas and all the combustion air are brought together just before the level of the combustion zone; or
2) the pre-mixing élémentaire dépasse 120 kW (sur le pouvoir
calorifique inférieur du gaz de référence approprié) ;
d) aux systèmes disposant d'un coupe-tirage antirefouleur entre le ventilateur d’extraction et le conduit
d’évacuation des produits de combustion ;
e) aux systèmes avec brûleurs à prémélange total dans lesquels :
1) le gaz et tout l'air comburant sont mélangés juste avant la zone de combustion ; ou
2) le prémélange du gaz et de tout l'air comburant est transporté dans une partie du brûleur en amont
de la zone de combustion ;
f) aux systèmes conçus pour une condensation continue dans le système d'évacuation dans des conditions
de fonctionnement normales ;
g) aux systèmes équipés de conduits d'évacuation des produits de combustion non métalliques.
La présente norme est applicable aux systèmes qui sont destinés à subir des essais de type.

Related legislation

Legislation related to this standard


Construction products


Appliances burning gaseous fuels


Appliances burning gaseous fuels


Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec


Life cycle


EN 777-3:1999/A2:2001

EN 777-3:1999/A1:2001

EN 777-3:1999

EN 777-3:1999/A3:2002


EN 777-3:2009
99.60 Withdrawal effective
Oct 9, 2019


EN 416:2019