Fill a small pot with water and place on stove on simmer or your lowest heat setting.

Add oranges, squeezing a few to release the juice into the water.

Add cinnamon and nutmeg.

Allow to simmer throughout the day. You can add more water as needed.

I usually set my oven timer for an hour at a time as well, so I don't accidentally go off and leave it burning. The last thing I want to do is burn my house down while trying to scent it.