CEN/TC 295/WG 2 - Roomheaters

This document is applicable to mechanical by wood pellets fed roomheaters, inset appliances and cookers up to 50 kW nominal heat output.
The intended use of the appliances is space heating in residential buildings and can be cooking. They can be fitted with a boiler (integral part of the appliance containing water to be heated up) for the supply of hot water for central heating systems.
These appliances typically use auxiliary energy which is measured in this document as well. They can be operated with either natural draught or fan-assisted combustion air.
NOTE   A fan-assisted appliance does still operate under negative pressure in the flue gas system.
These appliances burn wood pellets only as specified. They only operate with the firedoors closed.
This document is not applicable to appliances:
-   with boiler intended for water systems having water temperatures above 110 °C and 3 bar;
-   with boiler intended for water systems having direct contact with sanitary hot water;
-   intended to be used with a pure horizontal exhaust (through the building wall);
-   with flue gas condensation in the appliance;
-   switching on/off for part load operation.
This document specifies procedures for assessment and verification of constancy of performance (AVCP) of characteristics of mechanical by wood pellets fed roomheaters, inset appliances and cookers.

This document is applicable to space heaters, inset appliances and cookers intended for mechanical fuelling with wood pellets and for manual fuelling with other solid fuel. They can be freestanding or inset appliances.
The intended use of the appliances is space heating in residential buildings and can be cooking. They can be fitted with a boiler (integral part of the appliance containing water to be heated up) for the supply of hot water for central heating systems.
These appliances typically use auxiliary energy which is measured in this standard as well. They are operated with natural draught and can be fan-assisted.
NOTE 1   A fan-assisted appliance does still operate under negative pressure in the flue gas system.
For inset appliances and especially their testing additional information can be necessary from EN 16510-2-2.
These appliances burn wood pellets and wood logs only, in accordance with the appliance instructions. They only operate with the firedoors closed.
NOTE 2   These appliances can have an integral fuel hopper or be combined with an external fuel hopper.
These appliances can be fitted with a single or double combustion chamber having a single flue gas outlet.
This document specifies procedures for assessment and verification of constancy of performance (AVCP) of characteristics of combination appliances fired by wood logs and pellets.
This document is not applicable to appliances
-   with boiler intended for water systems having water temperatures above 110°C and 3 bar and for sanitary hot water,
-   intended to be used with a pure horizontal exhaust (through the building wall),
-   with flue gas condensation in the appliance,
-   switching on / off for part load operation,
-   with simultaneous wood and pellet operation with a single flue gas outlet,
-   with non-automatic pellet loading,
-   with single combustion chamber and double flue gas outlet.

This European Standard specifies requirements relating to the design, manufacture, construction, safety and performance (efficiency and emissions), instructions and marking together with associated test methods and test fuels for type-testing residential space heaters fired by wood pellets, and mechanically fed up to 50 kW nominal heat output.
These appliances may be freestanding or inset appliances and provide heat into the space where they are installed and may be operated with either natural draught or fan-assisted combustion air. Additionally, where fitted with a boiler, they also provide domestic hot water and/or central heating. These appliances burn wood pellets only, in accordance with the appliance manufacturer's instructions. They operate with firedoors closed only.
Non mechanically fed appliances burning solid mineral fuels, peat briquettes and natural or manufactured wood logs are not included in this European Standard, but are covered by EN 13229 and EN 13240.
NOTE   These appliances may have an integral fuel hopper or be combined with an external fuel hopper.

TC - Modification to A.6.2.9, Equation 22