Space between and tall oven housing unit and a gas hob or free standing cooker

Hi, 300mm, are you sure?, thats only 12 inches! I found this on the Web, hope it helps. "For hobs, there is an exclusion zone that extends over the hob and a further 50 mm horizontally in every direction along the work surface, and upwards for 760 mm. In this zone, there may be no combustible materials. This usually means there is almost no margin for positioning the hob to avoid the wall cupboards each side. Note that as of autumn 2004 if you fit a 700mm wide hob (usually 5 burner units) then you must have at least 700mm gap or "bridge" in any wall cupboards". Happy cooking,..... Geoff.