Non-domestic gas-fired convection air heaters for space heating not exceeding a net heat input of 300 kW, without a fan to assist transportation of combustion air ....(abbreviated)
NORM herausgegeben am 1.3.1998
Designation standards: ÖNORM EN 621
Note: UNGÜLTIG
Publication date standards: 1.3.1998
The number of pages: 106
Approximate weight : 349 g (0.77 lbs)
Country: Austrian technische Norm
Kategorie: Technische Normen ÖNORM