George did you drain the water out of the lines and the tanks, including the water heater before you stored it?
I once saw a water heater tank that split down the back from the water freezing and no where to go but out the back. He also had several of the facets crack. 
Unfortunately, no. We weren't intending to store long term, wanted it available on a moments notice. By the time I realized what was happening, it was too late to drain, all was frozen. As I said before, this weather was extremely sudden, and far more severe than anyone anticipated. We've been concerned about family in Boulder, CO, and near Minneapolis, MN, were certain we were ok.
I was almost tempted to turn the water heater on, the cold was befuddling my brain, but I came to my senses.
Replacing the water heater would be -- ok, probably will be -- bad. I'm guessing there's going to be issues with the water pump as well (haven't figured out exactly where it's at, even). I'm most concerned with the water lines, that will be a major problem replacing.
I see you're on the East Coast: they're predicting this stuff is coming your way. Good luck!
I hope it all turns out well. How full are your tanks?
We've had a similar unusual week, but not as bad, here in the Bay Area north of San Francisco. Low 50's during the day but into the 20's at night. Ironically, our PC is sitting inside in one of the warmish repair bays of our local RV shop for a thermostat/heating issue. I'm pretty happy that they've been too busy to finish the job quickly.
- Mike
The two waste tanks were mostly empty, so I'm hoping/guessing they won't be damaged. The fresh water tank was maybe 1/4 to 1/3 full -- fingers crossed on that one.
The plan was to winterize just after Christmas. Since it will be in a shop somewhere, I'm thinking that won't be a problem.
Well, I seem to be the odd-man-out here. In the fall, I winterize the water system, fill up with gas, run the engine and generator after putting STA-BIL fuel stabilizer in the gas tank, check the water in the batteries, set the electrical system to “Store,” cover the windows and tires, and lock the door. It’s not unusual to have winter temperatures in the 10s and 20s here, and occasionally below zero. It’s expected to be 14⁰ here tomorrow night with five inches of snow. In the spring, it starts right up. I don’t have the luxury of storing it at home, but check it inside and out every three to four weeks at a rented, secure, outdoor storage facility. We’ve had motorhomes for 25 years and never had a problem.
We did all that except winterize the water system. It's just too early here to need to do that. This time last year, just normal high winds and horizontal rain.
We really wanted to be able to just hop in the rig and take off at a moments notice once or twice before Christmas. Will have to re-think this next year.
We were in the Central Oregon coast, full-timing, between Oct 2012 & Jan 15, 2013, had one night of freezing but only for a couple of hours; spent last Jan-Feb-Mar traveling in Northern and Central California. Absolutely gorgeous weather, very mild temps, rained once or twice around Crescent City, did have one night when it froze, but we weren't prepared for that, didn't do anything, discovered the freezing the next morning, but the water line had become unfrozen before I could disconnect. Totally opposite of what's happening now.
Okay, now the flakes are getting big and fluffy. Under other circumstances, it would be enjoyable. Somewhere in the world it's after 6pm, so I think I'll indulge in some adult beverage
and enjoy the show.
--GeorgeB
