Abstract: A gas hob comprises a spillage tray (8) apertured to receive gas burner heads (18) supplied with gaseous fuel via passages formed between the spillage tray and a plate (32) secured to the undersurface of the tray by a suitable adhesive. The plate is preferably of an organic material based on hydraulic cement examples of which are described in European Patent Applications Nos. 80.301909.0 (0 021 682) and 81.301228.3 (0 038 126).