Question for anyone who has experience. How long does block ice last in the 32-3 icebox? It seems to be plenty big enough to hold quite a bit of ice, so I'm wondering how many days it might last and stay usefully cold? Does running the engine change it much? My engine bay is pretty well ventilated with a fan, but it still warms up the surroundings which includes the icebox sides if I'm not mistaken. I'm hoping Ericson did a decent job in building and insulating the box, but appreciate any insights. Also, do people put ice up on the interior shelves or just pile it up in the bottom, or what? I could see installing refrigeration at some point, but not this season.