My experience with outside closets is that they don't have any ventilation. If this is the case I would be concerned about enough airflow to stop a significant build up of ammonia. If you can smell the ammonia (pee smell) then the concentration is high enough to cause RI and other issues with your breeders.


This could also be an issue with a heater of any sort as the heat could quickly get dangerously high.

So all this said how is it ventilated?