Ideal Rear Gas Header Assembly Super 4 600H 100978

The rear gas header assembly is the manifold section that carries gas into the burner arrangement on Ideal Commercial Concord Super Series 4 boilers. It is manufactured by Ideal and supplied under part number 100978. The header sits at the rear of the appliance and feeds the gas rail, so it must seal correctly and remain free from corrosion or distortion.

• Gas smell or a detectable leak at the rear of the appliance during a tightness test
• Visible corrosion, pitting or surface cracking on the header body
• Soot or discolouration around the header joints, suggesting incomplete combustion or leakage
• Unstable flame picture or intermittent ignition traced back to the gas rail
• Physical damage to the header during servicing or handling

• Confirm the appliance model and serial number against the compatibility list, as the header is specific to the Concord Super Series 4 horizontal range
• Note the alternative number 1175375 when cross-referencing older documentation or stock records
• Check whether the joint seals or gaskets on the gas rail need renewing at the same time