A:Answer if you get a small USB powered fan, you can run the line down the tap and have it blowing cold air up. This will help keep the entire fridge cool, and keep the lines cool as well. You may want to make sure that you keep the extra line coiled up on top of the keg close to the freezer panel (but not too close as it will freeze them.) The big downside is the fact this doesn't have a fan to circulate the cold air, causing excess foam.