Has anyone used the 8" cinder block with a light bulb inside through a very cold winter? I'm seeing the heated bases as being rated to work down to 10 degrees, and we get to -10 sometimes here. Wondering if that block with a 100 watt incandescent would really work before I buy the stuff and try it. If it will keep the base thawed, I'd be okay with hanging a heat lamp above to keep the rest of the water thawed too, I just worry. My growouts will be in the barn stall this winter so I'd still like to use my 6 gallon drinker, I do have a heated dog bowl for the outside coop and I'm fine with filling that twice a day, but potentially 30+ inside would run through a gallon before I got home from work.


). My father in law uses a cinderblock with 2 40 watt incandescents in the holes and it works well(But we live in TN where it only gets down to single digits a few times a yr) so I'm not sure that would work as well for folks located further North. I currently use a metal cookie tin that I installed 2 electric fixtures with 60? (I think) watt halogen bulbs in. My 1 gallon waterer sits on top of it and stayed liquid during low single digit temps this last winter. I'm considering trying to change to a 5 gallon bucket with an aquarium or similar style heater with horizontal nipples but that's only theory at this point. And I probably have at least another 2 mths before I get to try it out.....