GOST R 54822-2011
净热输入不大于70 kW带风扇辅助燃烧器的空间加热用家用燃气强制对流空气加热器.通用技术要求和试验方法
Domestic gas-fired forced convection air heaters for space heating, with fan-assisted burners not exceeding a net heat input of 70 kW. General technical requirements and test methods