The overload test ensures the stove's performance remains consistent even when the use deviates from the nominal test requirements, by assessing its ability to handle a higher load of fuel compared to the standard nominal fuel load which occurs during the use phase. This document specifies a test method for an additional overload test for appliances as described in EN 16510-2-1:2022 and EN 16510-2-2:2022. This test procedure covers testing in addition a higher heat output than nominal heat output as described in EN 16510-1:2022.