This document is applicable to cookers for solid fuel (hand fired residential cookers). The intended use of the appliances is cooking and space heating in residential buildings. 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 can burn one or more types of the following solid fuels as specified:- wood logs;- compressed untreated wood;- wood pellets;- lignite briquettes;- solid mineral fuels;- peat briquettes.This document is not applicable to appliances with fan assisted combustion air or appliances that are mechanically fed.This document specifies procedures for assessment and verification of constancy of performance (AVCP) of characteristics of solid fuel burning cookers.