Does Anyone Manufacture A Chimney Hood That Is 55cm Wide Or Less?

Sarah Sharp would like to know the answer to the following question, if you have a suggestion then please post a reply:
I have a 55 cm wide cooker and have just discovered that no-one seems to make chimney hoods this narrow! Can anyone help. I would prefer a chimney jhood as I don't have the kind of arrangement for a built in hood.