I am going to hope for the best and order the one with the electric also since I took the SW6DE right off the plate. The more I think, I guess, it wouldn't hurt anything if it is DE and I just have propane if I just don't hook up the electric... Cause then it would just be propane.
To answer the question... BACK to the crack.... Last year, I am in a camp ground in Jersey, it stays there seasonal. So the people there were helping me I have known them all for years. One of them said he would switch on the hot water heater so he put the rod and cap back in and turned on propane and switched it on. I questioned if he unbypassed it and he said yes. About 30 minutes later he came running over going oh I forgot to un bypass it... He just went and opened up the cold water... HOT HOT water heater tank + Cold Water = Crack...