prated
as defined in Commission Regulation (EU) No 813/2013 of 2 August 2013 implementing Directive…, Article 2, point (7) (Definitions)
the declared heat output of a heater when providing space heating and, if applicable, water heating at standard rating conditions, expressed in kW; for heat pump space heaters and heat pump combination heaters the standard rating conditions for establishing the rated heat output are the reference design conditions, as set out in Annex III, Table 4;