DIN 4759-1:2017-07

This standard specifies safety requirements for heat generating systems for hot water heating systems or for hot water supply, especially for their equipment, to prevent combustion gases being joined within a combustion equipment for solid fuels and within a combustion equipment for liquid or gaseous fuels according to DIN 4755 within the heat generating system, within a connecting pipe or within one chimney only. The total nominal heat input of the heat generating system is not more than 100 kW. This standard specifies how to test fulfilling this requirement.