scope:

This part 2-6 of a European Standard series is applicable to space heaters, inset appliances and cookers fired by wood pellets, mechanically fed up to 50 kW nominal heat output. These appliances typically use auxiliary energy which is measured in this standard as well. For inset appliances and especially their testing, additional information may be necessarry from prEN 16510 2 2. 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 prEN 16510 2 1 to prEN 16510 2 5. NOTE - These appliances may have an integral fuel hopper or be combined with an external fuel hopper. This European Standard should be used in conjunction with prEN 16510-1. The appliances covered by this part 2-6 provide heat into the space where they are installed. They may be operated with either natural draught or fan-assisted combustion air. Where fitted with a boiler, they can also provide domestic hot water and/or central heating. These appliances burn wood pellets only, in accordance with the appliance manufacturer's instructions. They only operate with the firedoors closed. NOTE - A fan-assisted appliance does still operate under negative pressure in the flue gas system. 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. This European Standard is not applicable to appliances: - with boiler intended for water systems having water temperatures above 110°C and 3 bar; and - with boiler intendend 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.