CDA model Type of hob Number of cooking zones and/or areas hc3620 Ceramic hob 2 Heating technology (induction cooking zones and cooking areas, radiant cooking zones, solid plates) Radiant cooking zones For circular cooking zones or area: Ø diameter of useful surface area per electric heated cooking zone, rounded to the enarest 5mm For non-circular cooking zones or areas: L length and width of useful surface area W per electric heated cooking zone or area, rounded to the nearest 5mm Zone1: 16.