Specification for indirect gas fired forced convection air heaters for space heating (60 kW up to 2 MW input): safety and performance requirements (excluding electrical requirements) (2nd family gases)— 32 стр.
Specification for indirect gas fired forced convection air heaters with rated heat inputs up to 2 MW for industrial and commercial space heating: safety and performance requirements (excluding electrical requirements (2nd family gases)— 40 стр.
Specification for indirect gas fired forced convection air heaters with rated heat inputs up to 2 MW for industrial and commercial space heating: safety and performance requirements (excluding electrical requirements (2nd family gases)— 40 стр.
