RoyF wrote:
You did not ask about what to do with your two tank system, but BLF13 has given good advice. If you install an auto swith-over and develop the habit of checking its indicator once a day, then you will be able to sleep at night without worring about propane.
Depending on expected usage, we have RV Comfort Systems "Cheap Heat" electric add on unit on our 5er. Use propane only for quick Hot water recovery, and cooking. I check the tanks about once every 3 to 5 days.
We were on a 30 amp service which cuts down on the amount of heat from the "Cheap Heat" system can put out 1,800 watts compared to 5,000 watts on 50 amp. It would hold heat down to the mid 30's out side, but struggled to raise the temp. So we would switch to gas to raise then back to electric, to maintain. Really still didn't use that much gas.