Ключевые слова:
Flueless heaters|Performance|Gas space heating|Air heaters|Equipment safety|Flames|Testing conditions|Overhead|Test equipment|Flues|Stability|Temperature|Instructions for use|Heating equipment|Marking|Luminescent devices|Industrial|Classification systems|Control devices|Safety devices|Combustion|Ignition|Burners|Gas-powered devices|Type testing|Packaging|Performance testing|Design|Test pressure|Gaseous fuels|Heaters|Radiant heaters|Leak tests|Safety measures|Thermal measurement|Forced-draught burners