Will it look weird if aluminium cabinet doors are different size? i dont mind it but the aluminium kitchen cabinet maker does not agree with it. He was every door to be same size.Homogeneous. The reason i want the sizes to be different because i always bough accessories which are different sizes because his shop dont have accessories.

Well, if the door or window open during cooking and there is wind blowing, the heat transfer will not be efficient and will end up using more gas. Try to avoid unless necessary.