Range cooker dual fuel cooker freestanding cooker standard width 100 cm energy rating a hob type gas capacity 78 litre heating types multifunction fan assisted oven features telescopic rails controls knobs functions self cleaning safety feature flame safety device number of burnerszones 5 size large number of ovens 3 width 99 cm number of shelves 4 manufacturer specific features catalytic types of burnerszones wok burner standard burner mai