IEC 60675-2:2020 applies to electric direct-acting room heaters. This document defines performance characteristics related to the radiant effect and specifies methods for measuring the radiant factor for the information of users.
IEC 60675-2 Ed. 1.0 b:2020
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Household electric direct-acting room heaters – Methods for measuring performance – Part 2: Additional provisions for the measurement of the radiant factor