Hey guys what's up. I have a 7.2 cf chest freezer that I want to build a keezer with. I can't decide if I want a collar or tap tower. I was leaning totoward the tower untill I read that the towers pour warm. I guess I don't understand why when you drill a hole in the lid seems like the cool air would keep the lines cool in the tower. My question is do the towers really pour that much warmer?