I have a 5 gallon top fill waterer that I love. It is so handy . I looked for something similar to use this winter that was heated, but have found nothing! Instead I have 2 smaller heated waterers that I have to unplug, carry out of the coop (without spilling), turn upside down, pour water in and then carry back into the coop again (without spilling). It is impossible to not get water spilled in the coop, on my boots, on my gloves, and on the ground where it turns into a slick patch....rrrrr! Seems like it would be so simple to just put a removable lid on the top of these waterers and my problems would all be solved. Why don't they market such waterers? And if I'm wrong and they do sell something like this, please let me know where to get one! I am tired of the mess! My chickens go through about 4- 5 gallon of water a day. Right now I have 2 3 and 1/2 gallon heated waterers. I am tempted to cut the top off of one and make some kind of cover myself!