Winterized Water Heater

engelstine wrote:
Would that tank damage just from the ice? It was not like the entire tank was full, I pulled the Relief and the Hot Water line under the trailer so there isnt much ice in the Tank, just a block at the bottom where the Rod is. If the tank didnt expand do to the ice im not what other damage it could cause.

Probably not. If there was just a bit of water on the bottom, there is plenty of room for expansion. I wouldn't mess with the tank at all, during the Winter. The threads on the drain hole won't rust much at very low temps. If you're worried about that, wipe some silicone plumbers grease onto the threads.