Kashering treif oven

When using a treif oven and you cannot double wrap an item, how would one kasher that oven? (Obviously, from a Sephardi position on kashering.)

  1. Is running self-clean sufficient without 24 hr wait?
  2. if there is no self-clean option do you have to wait 24 hrs before kashering?
  3. how to clean without self-clean option?

Ovens, toaster ovens, and convection ovens can be koshered by putting them on the highest flame for half an hour. If they have a self-cleaning option, running the self-cleaning process is certainly good.

Does there need to be a wait of 24hrs of no use prior to kashering the oven?

Nope