reg 7
(1) The following assemblies which include at least one item of pressure equipment covered by regulation 6 must satisfy the essential safety requirements set out in Schedule 2— (a) assemblies intended for generating steam or superheated water at a temperature higher than 110 °C comprising at least one item of fired or otherwise heated pressure equipment presenting a risk of overheating; (b) assemblies other than those referred to in subparagraph (a), if the manufacturer intends them to be made available on the market and put into service as assemblies. (2) By way of derogation from subparagraph (1)(a) above, assemblies intended for generating warm water at temperatures not greater than 110°C which are manually fed with solid fuels and have a PS∙V greater than 50 bar∙L must comply with only those essential safety requirements referred to in paragraphs 14, 15, 30, 33(2)(a) and 33(2)(d) of Schedule 2.