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.
Scope to amendment A1
This amendment completes EN 89 : Gas-fired storage water heaters for the production of domestic hot water used with sealed combustion circuit with a fan incorporated in the combustion air circuit or combustion products evacuation circuit, or total premix burner circuit.
This amendment does not contain all the necessary requirements to make it applicable to appliances with a variable combustion air flow rate.
It is applicable to Type C12, C13, C32, C33, C42, C43, C52, C53, C62, C63 appliances.
BS EN 89:2000 Referenced Document
EN 125 Flame supervision devices for gas burning appliances - Thermoelectric flame supervision devices*， 2022-10-12 Update
EN 126 Multifunctional controls for gas burning appliances*， 2014-11-01 Update
EN 161 Automatic shut-off valves for gas burners and gas appliances*， 2022-10-12 Update
EN 298 Automatic burner control systems for burners and appliances burning gaseous or liquid fuels*， 2022-11-16 Update
EN 88 Pressure Governors for Gas Appliances for Inlet Pressures up to 200 mbar*， 2001-05-01 Update
BS EN 89:2000 history
2015BS EN 89:2015 Gas-fired storage water heaters for the production of domestic hot water
2000BS EN 89:2000 Gas-fired storage water heaters for the production of domestic hot water