Yes, set it to 0
Transmission, even on level 1 for logging, is chatty. Setting it to 0 is the only way to stop it completely.
Thanks. I've given this a go now and it's still doing it. I've looked in all the settings files and the setting has definitely been changed but it seems to be ignoring it. I've rebooted the server too to see if that would clear it but no luck.