Hi my father has just had a gas cooker installed. A free standing gas oven , gas grill and gas hob. The manufactures say that the ignition for the gas must be a 13amp plug. Is this correct? 13 amp for ignition seems to high . Can i down size the to 3amp and hardwire into 3amp fused spur. I have added a diagram of existing design . Does this design also permit me to add a sicket to then cooker control unit?