EN 89:1999

Gas-fired storage water heaters for the production of domestic hot water

Publication date:   Jul 7, 2001

General information

99.60 Withdrawal effective   May 13, 2015


CEN/TC 48 Domestic gas-fired water heaters

European Norm

91.140.65   Water heating equipment



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This European Standard defines the specifications and test methods for the construction, safety, rational use of energy and fitness for purpose, environment and classification and marking of gas-fired storage water heaters for domestic hot water uses, hereafter called "appliance". This standard applies to appliances : of types B11, B11BS, C11, C21 and C31; fitted with atmospheric burners; using one or more combustible gases corresponding to the three gas families and the pressures indicated in EN 437; of nominal heat input not exceeding 150 kW (net calorific value); using or not the water condensation heat in the combustion products; appliances whether subject to the water mains pressure or open-circuit. This standard does not contain all the requirements necessary for: - appliances fitted with a fan on the combustion circuit; - appliances intended to be connected to a mechanical means of evacuating the combustion products; - appliances which fulfill a dual role of space heating and heating water for domestic hot water use; - appliances with a combustion products discharge safety device other than that for type B11BS appliances; - appliances with electrical combustion products discharge orifice closure device downstream of the heat exchanger fitted to type B appliances and tested as an integral part of the appliance.

Related legislation

Legislation related to this standard


Appliances burning gaseous fuels


Appliances burning gaseous fuels


Life cycle


EN 89:1999
99.60 Withdrawal effective
May 13, 2015


EN 89:2015