EN 14543+A1 Specification for dedicated liquefied petroleum gas appliances – Parasol patio heaters – Flueless radiant heaters for outdoor or amply ventilated area use – This European standard sets out the design, safety and marking requirements and test methods for flueless patio heaters for outdoor or ventilated area use only. These appliances are for use exclusively with gases of the third family as defined in 4. This document applies to appliances that have a nominal heat output not exceeding 17 kW (based on the gross calorific value), – fixed or, – movable, including those which comprise a housing for a transportable and rechargeable liquefied petroleum gas cylinder. This document does not apply to appliances equipped with a fan for either combustion or circulation of the convection air. This document does not lay down any specific requirements for the thermal efficiency of this type of appliance, since: – all the heat produced by the combustion process is released into the space to be heated, – the requirements relating to combustion, which is a safety matter, ensure that the gas fuel will burn efficiently. However a method to measure the performances is described in informative annex C. This standard does not apply to appliances covered by EN 449.Original English text of CSN EN Standard.The price of the Standard included all amendments and correcturs.