[bobbecky]

If you're very lucky, it will just be condensation. If it were me, I would be running the heat at more than just the minimum, because a little propane is much cheaper than having to repair a burst plumbing pipe or fitting in addition to all the other damage than can occur from a water leak. From how you described your rig, it sounds like it's fairly new, and from my experience with our rig, I had to open up areas to access plumbing in order to tighten many fittings that were barely hand tight.