Ключевые слова:
Fire tests|Heaters|2nd family gases|Domestic safety|Convection heaters|Classification systems|Type testing|Household equipment|Domestic|Gas-fired heaters|Pressure testing|Performance testing|Leak tests|Gas space heating|Radiant heaters|Safety measures|Gas-powered devices|Thermal-cycling tests|Thermal output|Efficiency|Flued heaters|3rd family gases