Right after we got the flames working on the stove, Ron started working on hooking up the instant water heater so we could have hot water. Initially, we had a hard time getting the water to come out, but, found out that it was the wiring that had come loose. After he got that fixed, there was running water, but, it wasn't getting hot. So, he checked the propane tanks. One was empty, and the other one should have been working, but, for some reason the gauge was showing empty. Ron was getting pretty frustrated by this time, so he took both of them out, and went to fill the one and top off the other. What he ultimately found out as the reason it wouldn't work was the fact that there was a leak around the fittings near the water heater. He commented that it was weird how the propane system was smarter than we were by shutting down everything until the leak was fixed. Anyway, we now have hot water.