I recently moved into my apartment, which is equipped with an Orbis brand Linea 500 oven (horno), and instead of listing temperatures, it just has numbers 1 through 7. The lowest the oven will actually go is 3 and half. I’ve been told that the manufacturers usually publish guides to what temperatures these numbers are, but after searching online, I haven’t come up with anything. Any help??

Thanks so much! :)