@Jax_macky My understanding is exhausting the heat to an extent. Because you have your controlling in the box you don't necessarily want pump in cool air to prevent condensation.
As long as the ambient air outside of the box is around the temperature you want inside to be you should be fine
@Jax_macky You're who you are at your core and not covers will change that.
Showing me the raw food and telling me nothing of the finished cooking still make me want to have your cooking again