prEN 13203-7

This European Standard is applicable to gas-fired appliances producing domestic hot water. It applies to condensing combination boilers with passive flue heat recovery device (PFHRD) that have: - a heat input not exceeding 400 kW, - a hot water storage tank capacity (if any) not exceeding 2000 l, - a declared load profile between M to 4XL. In the case of combination boilers, with or without storage tank, domestic hot water production is integrated or coupled, the whole being marketed as a single unit. For this standard, some tests and calculation results of FprEN 13203-2:2018 are used to calculate the energy consumptions.