Byron: Oh no! I don't mean to say I don't believe you - the magnitude of the change is not in question. I'm just being an annoying pedant about measurement... a wall mounted digital vs an analog
compost thermometer would be problematic in a scientific setting. Sorry, old habits.
I think your tire door flap is great for its durability AND I'm amazed at how its blocking air movement as well.
Pigs must be sooo happy! If only they know how lucky they are...